<SEC-DOCUMENT>0001084991-19-000033.txt : 20190510
<SEC-HEADER>0001084991-19-000033.hdr.sgml : 20190510
<ACCEPTANCE-DATETIME>20190510122647
ACCESSION NUMBER:		0001084991-19-000033
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		61
CONFORMED PERIOD OF REPORT:	20190510
FILED AS OF DATE:		20190510
DATE AS OF CHANGE:		20190510

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATURAL GAS SERVICES GROUP INC
		CENTRAL INDEX KEY:			0001084991
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL, GAS FIELD SERVICES, NBC [1389]
		IRS NUMBER:				752811855
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31398
		FILM NUMBER:		19813752

	BUSINESS ADDRESS:	
		STREET 1:		508 WEST WALL STREET
		STREET 2:		SUITE 550
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
		BUSINESS PHONE:		432-262-2700

	MAIL ADDRESS:	
		STREET 1:		508 WEST WALL STREET
		STREET 2:		SUITE 550
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>ngs-20190331.htm
<DESCRIPTION>10-Q
<TEXT>
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style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:71.052632%;"><tr><td style="width:1.0%;"></td><td style="width:31.333333%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:31.333333%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:31.333333%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Yes&#160;&#160;&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">x</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">No&#160;&#160;&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">o</span></div></td></tr></table></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.&#160;&#160;See the definitions of &#8220;large accelerated filer&#8221;, &#8220;accelerated filer&#8221;, and &#8220;smaller reporting company&#8221; and "emerging growth company" in Rule 12b-2 of the Exchange Act.</span></div><div style="margin-top:6pt;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:14.740088%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.767988%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:22.375918%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:18.558003%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:18.558003%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Large accelerated filer&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">o</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Accelerated filer&#160;&#160;&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">x</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Non-accelerated filer </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">o</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Smaller reporting company&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">x</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Emerging growth company </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">o</span></div></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;(Do not check if smaller reporting company)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div style="padding-right:6pt;text-align:justify;margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition  period for complying  with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;line-height:120%;">o</span></div><div style="margin-top:6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).</span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:70.906433%;"><tr><td style="width:1.0%;"></td><td style="width:31.195876%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:31.402062%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:31.402062%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Yes </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">o</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">No </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Wingdings;font-size:10pt;font-weight:400;line-height:100%;">x</span></div></td></tr></table></div><div style="text-align:center;margin-top:3pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9pt;font-weight:700;line-height:120%;">APPLICABLE ONLY TO CORPORATE ISSUERS</span></div><div style="margin-top:3pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of May 5, 2019, there were <ix:nonFraction unitRef="shares" contextRef="i603bf6e6be344f548c98839a1acaaeef_I20190505" decimals="INF" format="ixt:numdotdecimal" name="dei:EntityCommonStockSharesOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xL2ZyYWc6ODIwMzYyMWM0ODEyNDg4ZmFhZjE0MDE3OWY5ODA3NmYvdGV4dHJlZ2lvbjo4MjAzNjIxYzQ4MTI0ODhmYWFmMTQwMTc5Zjk4MDc2Zl8yMDYx_0024119d-5a66-4bf5-8176-3e3df1ef3935">13,225,077</ix:nonFraction> shares of the Registrant's common stock, $0.01 par value, outstanding.</span></div><div id="i_0_7"></div><div><span><br/></span></div><div style="position:relative;width:100%;height:36pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;"><span><br/></span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:86.011696%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:5.163743%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.385965%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:12.619883%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:12.619883%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:12.619883%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:12.619883%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:12.619883%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Part I - FINANCIAL INFORMATION</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Item 1.&#160;Consolidated&#160;Financial Statements</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_16">Unaudited&#160;Condensed Consolidated Balance Sheets</a></span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_16">1</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_22">Unaudited&#160;Condensed Consolidated Income Statements</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_22">2</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_648">Unaudited Condensed Consolidated Statements of Stockholder</a><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_648">s</a><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_648">'</a><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_648"> Equity</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Page</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_648">3</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_25">Unaudited&#160;Condensed Consolidated Statements of Cash Flows</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Page</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_25">4</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_28">Notes to Unaudited&#160;Condensed Consolidated Financial Statements</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_28">5</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_82">Item 2.&#160; Management's Discussion and Analysis of Financial Condition and Results of Operations</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_82">17</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_97">Item 3.&#160;&#160;Quantitative and Qualitative Disclosures about Market Risk</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_97">21</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_100">Item 4.&#160;&#160;Controls and Procedures</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_100">21</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Part II&#160;- OTHER INFORMATION</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_106">Item 1.&#160;&#160;Legal Proceedings</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_106">22</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_109">Item 1A.&#160;&#160;Risk Factors</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_109">22</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_115">Item 6.&#160;&#160;Exhibits</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_112">23</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_118">Signatures</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Page</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="#i_0_118">25</a></span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div><span><br/></span></div><div id="i_0_10"></div><div style="-sec-extract:summary;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;"><span><br/></span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">PART I &#8211; FINANCIAL INFORMATION</span></div><div id="i_0_13"></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 1.&#160;&#160;Financial Statements</span></div><div id="i_0_16"></div><div><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:71.976608%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:10.426901%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.865497%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="12" style="padding-top:2px;padding-bottom:2px;height:45pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">NATURAL GAS SERVICES GROUP, INC.</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">CONDENSED CONSOLIDATED BALANCE SHEETS</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands, except per share amounts)</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(unaudited)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:6pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:6pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:6pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:6pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31,</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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0.0);">ASSETS</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current Assets:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div style="padding-left:6pt;padding-right:-6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Cash and cash equivalents</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashAndCashEquivalentsAtCarryingValue" scale="3" 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNy0xLTEtMS0w_36ff8915-d34d-4dd3-bc34-eebda54fa5a7">10,298</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNy0zLTEtMS0w_db103658-4be1-4df7-9ba0-e6aaf45fdc22">7,219</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Inventory</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfOC0xLTEtMS0w_223a55cd-5771-439d-b9eb-715b3471f38e">35,499</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfOC0zLTEtMS0w_59c32393-19e6-4685-8c28-c5948f3200ae">30,974</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Prepaid income taxes</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidTaxes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfOS0xLTEtMS0w_b1cb5183-95d9-4ae4-9099-2c43078607c4">3,100</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidTaxes" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfOS0zLTEtMS0w_3b763878-eb69-4e63-a3e2-8e5499aaee98">3,148</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Prepaid expenses and other</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidExpenseAndOtherAssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTAtMS0xLTEtMA_6ce699c7-9506-4465-b449-b19c2d4ff6ed">1,702</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PrepaidExpenseAndOtherAssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTAtMy0xLTEtMA_dec0e48e-abdc-49e5-b8bd-275a429551bb">2,430</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div style="padding-left:12pt;padding-right:-12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total current assets</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTEtMS0xLTEtMA_703e824d-5bee-4015-b593-9525ffddcba6">90,591</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AssetsCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTEtMy0xLTEtMA_bfb4e652-62eb-4422-9f4d-8466d9f63757">96,399</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Long-term 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style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTItMy0xLTEtMA_b8f3f05d-2400-42f3-8218-9d3fc96aa7ee">3,980</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Rental equipment, net of accumulated depreciation of $168,466 and $165,428, respectively</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="ngs:RentalEquipmentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTMtMS0xLTEtMA_0fd323db-43c9-4bf1-a0dc-a924d9f4c727">179,442</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="ngs:RentalEquipmentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTMtMy0xLTEtMA_9163564d-5696-44c3-a83e-484acf7f4ed2">175,886</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Property and equipment, net of accumulated depreciation of $11,665 and $11,556, respectively</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PropertyPlantAndEquipmentOtherNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTQtMS0xLTEtMA_3e6eb791-c8c4-474a-af22-497bb4290fbb">17,134</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PropertyPlantAndEquipmentOtherNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTQtMy0xLTEtMA_f518961c-b5c6-4ec1-8d75-041e86e13417">16,587</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets - operating leases, net of accumulated amortization $36</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTUtMS0xLTEtNzk4_3af17bed-7fc4-47b4-8fd6-8f0b230d8d4f">541</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Goodwill</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Goodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTUtMS0xLTEtMA_f0a83575-a8d5-4e42-9e93-c4e6df5d6797">10,039</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Goodwill" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTUtMy0xLTEtMA_f2c79cc8-1db8-48de-b1b9-a18b42aa8065">10,039</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Intangibles, net of accumulated amortization of $1,789 and $1,758, respectively</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IntangibleAssetsNetExcludingGoodwill" scale="3" 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unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTctMS0xLTEtMA_ddfd75e1-bc48-4c1e-8616-41aaa029668b">1,243</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherAssetsNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTctMy0xLTEtMA_82d9a27a-e1cc-40d6-8f27-0007ad8127ad">1,109</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div style="padding-left:24pt;padding-right:-24pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total assets</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Assets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTgtMS0xLTEtMA_309236f5-a108-4c65-bd40-0c3dd94bc0b1">304,357</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Assets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMTgtMy0xLTEtMA_19ee87f5-65d0-4fca-9557-0b3d74a128a0">305,401</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:center;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">LIABILITIES AND STOCKHOLDERS' 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style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts payable</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsPayableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjItMy0xLTEtMA_557b32b1-0269-4445-a384-e5d17c3f8e95">2,122</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accrued liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccruedLiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjMtMS0xLTEtMA_33a314e6-fcb8-4bfb-9b52-9d4afd379a55">4,341</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccruedLiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjMtMy0xLTEtMA_de665eaa-f509-42dc-8261-69f35e913d90">8,743</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjYtMS0xLTEtODA1_90f35865-cd8e-4c00-a39e-cdb27bd65862">148</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Deferred income</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjUtMS0xLTEtMA_31204f46-9c92-4263-af53-77d0c267c730">133</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjUtMy0xLTEtMA_6f00c10b-9d45-4af5-b87c-6021bd7e9bd4">81</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total current liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjYtMS0xLTEtMA_af289080-e477-4e02-8c84-1780b2c0dd77">8,072</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjYtMy0xLTEtMA_a6e16efd-429b-4c87-8733-f7218c77c1f9">10,946</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Line of credit</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LongTermLineOfCredit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjctMS0xLTEtMA_44ef8950-4185-45d1-9da5-50c488840238">417</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:LongTermLineOfCredit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjctMy0xLTEtMA_689e8401-d7f8-4a68-ace8-8749cbee408c">417</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Deferred income tax liability</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredIncomeTaxLiabilitiesNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjgtMS0xLTEtMA_fc0e9bae-9c4a-4c10-b690-f4330f02f490">32,315</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredIncomeTaxLiabilitiesNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMjgtMy0xLTEtMA_db14ae55-46fe-493c-8eb7-f6e9bf71d2e4">32,158</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long-term operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzEtMS0xLTEtODA4_565833ff-5eff-434d-9be0-69d7342cadcf">393</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Other long-term liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzAtMS0xLTEtMA_9b06742f-036d-434a-829a-bd278d68ba8d">1,764</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherLiabilitiesNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzAtMy0xLTEtMA_2ba46125-3c98-435c-8975-f546afe1bd33">1,699</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Liabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzEtMS0xLTEtMA_df0a496a-6566-4a07-9c42-662a0f1433fd">42,961</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Liabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzEtMy0xLTEtMA_f59b496e-0a47-43cf-8678-4a5c07239beb">45,220</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Commitments and contingencies (Note 9)</span></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New 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style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Preferred stock, 5,000 shares authorized, no shares issued or outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" 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format="ixt:zerodash" name="us-gaap:PreferredStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzQtMy0xLTEtMA_caec40bd-5597-4e26-973e-346eaaef2e2e">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Common stock, 30,000 shares authorized, par value $0.01; 13,133 and 13,005 shares issued and outstanding, respectively</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:CommonStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzUtMS0xLTEtMA_7a270342-af46-4281-a5ad-a1c61e01dcdf">131</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:CommonStockValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzUtMy0xLTEtMA_e8e7d6aa-bd51-476e-9ebf-13889a518686">130</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Additional paid-in capital</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzYtMS0xLTEtMA_cea71485-d385-4d5b-9ec9-57aa01732f1c">108,617</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AdditionalPaidInCapitalCommonStock" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzYtMy0xLTEtMA_852c266f-283b-4bc7-b3f3-dc10bfb16ea5">107,760</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:6pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Retained earnings</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzctMS0xLTEtMA_f3b49488-3c02-48ac-9f4f-218161c7c07f">152,648</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RetainedEarningsAccumulatedDeficit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfMzctMy0xLTEtMA_8201ff10-0566-4760-b132-68b43136b574">152,291</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total stockholders' equity</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNDAtMS0xLTEtMA_52962e01-e256-417a-bb6c-b98973692668">261,396</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNDAtMy0xLTEtMA_405c9650-634c-47fd-aed0-229a40e7569e">260,181</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total liabilities and stockholders' equity</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNDEtMS0xLTEtMA_99a04538-5d08-405a-bf81-983582e6a380">304,357</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LiabilitiesAndStockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8xNi9mcmFnOjI3MTAwZDIyOGE0NjRhZjJiNDllMGJmNmMxMWYwODk4L3RhYmxlOjc2Njc3OTg2MDE0YzQwZmNiZjI0YmZmODhhZTMzNDdhL3RhYmxlcmFuZ2U6NzY2Nzc5ODYwMTRjNDBmY2JmMjRiZmY4OGFlMzM0N2FfNDEtMy0xLTEtMA_c49c2114-4f15-4597-885a-38648b9a4732">305,401</ix:nonFraction>&#160;</span></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">See accompanying notes to these unaudited condensed consolidated financial statements.</span></div><div><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">1</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div id="i_0_22"></div><div><span><br/></span></div><div><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:70.660819%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:11.304094%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:11.304094%;"></td><td style="width:1.0%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="12" style="padding-top:2px;padding-bottom:2px;height:45pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">NATURAL GAS SERVICES GROUP, INC.</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">CONDENSED CONSOLIDATED INCOME STATEMENTS</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands, except earnings per share)</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(unaudited)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Three months ended</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Revenue:</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental income</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ia255bc9ff1374e58a67935171147c9d7_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfNi0xLTEtMS0w_a0e7d8bd-e51a-4aef-91f2-a3960fbc6cee">13,387</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3633ae8fc6af482485206bbfc65baf85_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfNi0zLTEtMS0w_262d3909-aafb-4852-853f-f1354cd2c6c3">11,471</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Service and maintenance income</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfOS0xLTEtMS0w_88ca56d6-27f3-4eb9-962b-5f43b90ab233">479</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ib4f6fa92e223462c82c14959b880eee2_D20180101-20180331" decimals="-3" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfOS0zLTEtMS0w_567dadc2-6871-4d4a-b756-0cb268d00463">249</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="padding-left:16pt;padding-right:-16pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTAtMS0xLTEtMA_66a8df14-f8ee-4db1-b838-1d6e06efb143">17,991</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTAtMy0xLTEtMA_ae1c7867-e729-422c-86b8-15302c8ac42d">14,718</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating costs and expenses:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:-9pt;padding-left:9pt;padding-right:-9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Cost of rentals, exclusive of depreciation stated separately below</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DirectCostsOfLeasedAndRentedPropertyOrEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTItMS0xLTEtMA_7594fa6c-04bb-4e66-a424-0ea44f8137ae">5,885</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DirectCostsOfLeasedAndRentedPropertyOrEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTItMy0xLTEtMA_1a2dd3dd-2d35-40cf-bdc6-9b0c990cf009">4,704</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:-9pt;padding-left:9pt;padding-right:-9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Cost of sales, exclusive of depreciation stated separately below</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherCostOfOperatingRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTMtMS0xLTEtMA_1fb7f654-3514-4f39-bcf5-5c987b4064b5">3,699</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OtherCostOfOperatingRevenue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTMtMy0xLTEtMA_6a58a9cf-720e-4fc2-bb2c-6e519b9aea56">2,191</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:-9pt;padding-left:9pt;padding-right:-9pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Cost of service and maintenance</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:CostOfPropertyRepairsAndMaintenance" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTUtMS0xLTEtMA_77a83675-f97a-4019-9e02-99c0632862f7">147</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:CostOfPropertyRepairsAndMaintenance" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTUtMy0xLTEtMA_481f8791-8de1-416a-94f0-37715859b4d7">65</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Selling, general and administrative expense</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTctMS0xLTEtMA_33d5e3db-eb17-45dd-af42-9e6954d34fbb">2,493</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:SellingGeneralAndAdministrativeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTctMy0xLTEtMA_bc9f9031-f824-450e-a3fd-da30e427418a">2,021</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Depreciation and amortization</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DepreciationDepletionAndAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTgtMS0xLTEtMA_be255b1d-6dba-4c58-b236-db802f6df891">5,558</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DepreciationDepletionAndAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTgtMy0xLTEtMA_026799a3-66a8-412b-84ad-2f124fd6ac38">5,387</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total operating costs and expenses</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTktMS0xLTEtMA_2dbed572-db70-45cd-819d-0c424616bf73">17,782</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMTktMy0xLTEtMA_de8a1387-b343-4733-b127-7cf6822cf5c9">14,368</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating income</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:OperatingIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjAtMS0xLTEtMA_44775304-95a3-4f69-975c-b9d9d4f0fbd9">209</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:OperatingIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjAtMy0xLTEtMA_2fb08ea6-6354-4dcc-b148-d97d3e1b6afd">350</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Other income (expense):</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Interest expense</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:InterestExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjItMS0xLTEtMA_a2899905-5bfa-49aa-b8d8-018ae3675c88">4</ix:nonFraction>)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:InterestExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjItMy0xLTEtMA_6faa30e5-019b-4c8c-b56d-bd1ea3b38fe6">3</ix:nonFraction>)</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Other income (expense), net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjMtMS0xLTEtMA_3b575e17-1040-4fc2-a3b0-25d891c53567">305</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:OtherNonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjMtMy0xLTEtMA_5f588b8d-455a-4705-b7d0-e3f7d81c6cb4">73</ix:nonFraction>)</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total other income (expense), net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjQtMS0xLTEtMA_703dca78-8fb7-415d-8928-96d3c36834dd">301</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjQtMy0xLTEtMA_e60cba45-4334-44ec-9bd8-8116d0ffa9a6">76</ix:nonFraction>)</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Income before provision for income taxes</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjUtMS0xLTEtMA_811fe724-097b-4042-8193-fcb4d20ca737">510</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjUtMy0xLTEtMA_460ea180-96f4-4cd3-a4e1-b96bc08a394c">274</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Income tax expense</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjYtMS0xLTEtMA_d6f50685-9e4a-4e81-9f31-bf1ee419d52e">153</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:IncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjYtMy0xLTEtMA_742929dc-691f-4163-91b8-0369728bfccb">49</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Net income</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjctMS0xLTEtMA_3b394e7a-9db3-43bd-99ed-4885caa55e2b">357</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjctMy0xLTEtMA_e2896957-43d5-42d7-afa0-52564a33773c">225</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:-36pt;padding-left:36pt;padding-right:-36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Earnings per share:</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Basic</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:EarningsPerShareBasic" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjktMS0xLTEtMA_a1dd7b1c-98e9-4727-beb4-c17ff2c58fef">0.03</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="2" name="us-gaap:EarningsPerShareBasic" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMjktMy0xLTEtMA_a20b61b7-2b0c-4a25-a99f-a012eb6c14c9">0.02</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:EarningsPerShareDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzAtMS0xLTEtMA_90095df4-baf4-4e65-8ca9-c2393f85f16b">0.03</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="2" name="us-gaap:EarningsPerShareDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzAtMy0xLTEtMA_a6e4c7f5-7a3b-4524-b434-2006d39c27e9">0.02</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average shares outstanding:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Basic</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzItMS0xLTEtMA_1266cb3a-1fbe-42ed-b8e0-5cfacd000c59">13,064</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzItMy0xLTEtMA_1241d811-c243-4dac-9b8a-29f67c9f8c68">12,920</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzMtMS0xLTEtMA_dcb4fb46-be54-476d-8944-05903c299ab6">13,268</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yMi9mcmFnOmZiMDUxMjU2OTI1ZjRiYmQ4NWQ2YzdjYWFhNjY0OWVhL3RhYmxlOjUzYTUzMmJhYTk3MjRlNzhiMGNjNmE2MjNhMjBlZWJkL3RhYmxlcmFuZ2U6NTNhNTMyYmFhOTcyNGU3OGIwY2M2YTYyM2EyMGVlYmRfMzMtMy0xLTEtMA_e3ccfac2-1544-4e6f-84c7-6ce0f45a2625">13,169</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr></table></div><div><span><br/></span></div><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">See accompanying notes to these unaudited condensed consolidated financial statements.</span></div><div id="i_0_648"></div><div><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">2</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:72pt;width:100%;"><div><span><br/></span></div></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.827586%;"><tr><td style="width:1.0%;"></td><td style="width:20.424242%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:7.090909%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:7.696970%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:7.848485%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:8.454545%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.363636%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:7.090909%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.406061%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:12.393939%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="42" style="padding-top:2px;padding-bottom:2px;height:56pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">NATURAL GAS SERVICES GROUP, INC.</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(unaudited)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:20pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:20pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Preferred Stock</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="height:20pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:20pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Common Stock</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="height:20pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:20pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Additional Paid-In Capital</span></td><td colspan="3" style="height:20pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:20pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Retained Earnings</span></td><td colspan="3" style="height:20pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:20pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total Stockholders' Equity</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Shares</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Amount</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Shares</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Amount</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ie110cc682c0c48689483dc79ecc68c03_I20171231" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzItNy0xLTEtMjA0OQ_bb08f236-6965-4713-aa3f-1d8317e1816f">129</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i2b88fd7604dd4d0587c359605454ce2e_I20171231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i531e33db8f5e4244bc19488ba96c846d_I20171231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzItMTEtMS0xLTIwNDk_56bd7eaf-d93d-4ed8-8537-862fc4a6bfed">151,865</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3bf3ee252c244b29b249431435335d3d_I20171231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="ib5f2a678ba644b279a8e32f5ac0ccaeb_D20180101-20180331" decimals="-3" name="us-gaap:StockIssuedDuringPeriodSharesNewIssues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzMtNS0xLTEtMjA0OQ_94f84f1d-4993-4142-9bba-d6c3d8432038">9</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction 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style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" scale="3" 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style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction 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style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i1de154dfe8244afcaba034a69f48d68e_I20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzktMy0xLTEtMjA0OQ_0216553e-1404-4557-a8e1-f818502c1306">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="ie01a22bdf5bd486a9c0fab11095764af_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CommonStockSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzktNS0xLTEtMjA0OQ_0b76a851-e113-4ba6-99c2-71f03f22ff87">12,949</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ie01a22bdf5bd486a9c0fab11095764af_I20180331" decimals="-3" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzktNy0xLTEtMjA0OQ_fb613ce2-3a58-498b-8f8d-5aa3bc0757ec">129</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i92c1594dd3fc4c419bfed1d67200adbe_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzktOS0xLTEtMjA0OQ_11ee5e42-c584-434b-be7a-963e41bc291a">105,415</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" 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style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i4bba0c004d8a4aae847f8d6794f04516_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" 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style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double 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style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i93f06b42076f4d9e88bdf2b38f93da67_I20181231" decimals="-3" format="ixt:zerodash" name="us-gaap:StockholdersEquity" scale="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="id393ac257c814d31b43a31b6c3091fee_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzExLTExLTEtMS0yMDQ5_cbaa0f7c-215e-4571-aaa1-3ca74f51901d">152,291</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i39ff8b52ab1f43268677c685e1f10b06_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzE4LTktMS0xLTIwNDk_df5b35c6-e6b4-40d5-8e0a-8155155056a9">108,617</ix:nonFraction>&#160;</span></td><td colspan="3" 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Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:StockholdersEquity" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82NDgvZnJhZzoxNGQ4OTBkNzRmOWU0NzMyODZlN2E3NzVjODJjMGVlMi90YWJsZTowYjVlOWI0YjZjMzY0M2FmODA2ZDllNjNlYzc0NGI2YS90YWJsZXJhbmdlOjBiNWU5YjRiNmMzNjQzYWY4MDZkOWU2M2VjNzQ0YjZhXzE4LTEzLTEtMS0yMDQ5_1b6a034f-27fb-4085-b37d-d117c2202b1e">261,396</ix:nonFraction>&#160;</span></td></tr></table></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">See accompanying notes to these unaudited condensed consolidated financial statements.</span></div><div id="i_0_25"></div><div><span><br/></span></div><div style="position:relative;width:100%;height:72pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">3</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:72.122807%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:10.573099%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.573099%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="12" style="padding-top:2px;padding-bottom:2px;height:43pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">NATURAL GAS SERVICES GROUP, INC.</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(unaudited)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:14pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:14pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Three months ended</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:top;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:top;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CASH FLOWS FROM OPERATING ACTIVITIES:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNS0zLTEtMS0w_7ad15727-914f-4996-a474-8c10d9fb23e0">225</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Adjustments to reconcile net income to net cash (used in) provided by operating&#160;activities:</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Depreciation and amortization</span></td><td colspan="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DepreciationDepletionAndAmortization" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNy0zLTEtMS0w_7f964a62-7b7c-4e9c-afa9-185fb26ee712">5,387</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Deferred income taxes</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:DeferredIncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfOC0xLTEtMS0w_8cc1feff-f61e-4ced-bfb5-5d4a99675ddd">157</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:DeferredIncomeTaxExpenseBenefit" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfOC0zLTEtMS0w_998e5f5c-6a58-4c14-85c2-7c72667e7128">48</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Stock-based compensation</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfOS0xLTEtMS0w_f01588c1-66f5-44eb-aeaf-45a33db812fa">495</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:ShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfOS0zLTEtMS0w_1b665805-744b-4cf2-8974-e1474b285050">428</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Bad debt (recovery) allowance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ProvisionForDoubtfulAccounts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTAtMS0xLTEtMA_dbb138b3-c3a4-4f1c-889c-609eaf124fc2">10</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:ProvisionForDoubtfulAccounts" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTAtMy0xLTEtMA_49f38b39-6601-43d8-9a03-c01c3eaea6f2">50</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Gain on sale of assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:GainLossOnDispositionOfAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTItMS0xLTEtMA_087e5570-ed2e-4de7-890b-aaa1098d73e1">22</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:GainLossOnDispositionOfAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTItMy0xLTEtMA_d824fb17-aac5-4b8f-9e9b-c748cff61443">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(Gain) loss on company owned life insurance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTQtMS0xLTEtMA_9a244bb7-99f2-4987-aa2f-48da63130b06">99</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTQtMy0xLTEtMA_ec1a9c4c-8cfe-44b9-a4a5-ed74e9617542">67</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Changes in operating assets and liabilities:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Trade accounts receivables</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTctMS0xLTEtMA_5923749e-794a-4025-a1f9-4c2ec1fd2c18">3,089</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInAccountsReceivable" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTctMy0xLTEtMA_7105d345-f8d5-4747-83fb-5208d959c8f9">865</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Inventory</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInInventories" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTgtMS0xLTEtMA_01d59321-ce03-4e1c-8e3d-56ae4b7b03a9">4,468</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInInventories" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTgtMy0xLTEtMA_590382c4-1e4f-40ab-919a-f41f8d5d94d0">15</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Prepaid expenses and prepaid income taxes</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTktMS0xLTEtMA_036c9686-637d-4daf-86cc-9252cbb392d8">202</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMTktMy0xLTEtMA_6f882110-eb52-4661-a054-76cd84a2b607">488</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts payable and accrued liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjAtMS0xLTEtMA_07a0c3ce-2f03-4677-bbe6-6b696a829af4">3,074</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjAtMy0xLTEtMA_37d27a26-032a-4da0-ae90-89852f6af233">2,539</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Deferred income</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjItMS0xLTEtMA_296c1762-7a59-43d0-b8be-278110755f9f">52</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:IncreaseDecreaseInContractWithCustomerLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjItMy0xLTEtMA_a586a283-457a-4431-9aaa-c58bf3066d3e">109</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Other</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInOtherCurrentAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjMtMS0xLTEtMA_deb31a9e-0b28-45c3-886c-c55bf110105d">75</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:IncreaseDecreaseInOtherCurrentAssets" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjMtMy0xLTEtMA_a1deb860-a1c2-4772-87b9-138feabf25b5">85</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjUtMS0xLTEtMA_b582a292-0995-47b0-a111-ae751a718474">3,846</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInOperatingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjUtMy0xLTEtMA_117a4977-3268-4b57-a1e6-609945149120">5,128</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CASH FLOWS FROM INVESTING ACTIVITIES:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Purchase of rental equipment and property and equipment</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjctMS0xLTEtMA_86a345ea-442a-49c9-991e-746312b59b2f">9,130</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:PaymentsToAcquirePropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjctMy0xLTEtMA_7658e0e9-74fa-407a-9e9e-87f0f94dc7b7">8,712</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Purchase of company owned life insurance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:PaymentsToAcquireLifeInsurancePolicies" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjgtMS0xLTEtMA_36735581-780b-43aa-8f34-5499a89ab568">40</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:PaymentsToAcquireLifeInsurancePolicies" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjgtMy0xLTEtMA_671b79f6-59a2-4717-9eda-db22ca3a5e66">139</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Proceeds from sale of property and equipment</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjktMS0xLTEtMA_3c8a292f-4ae6-4c3c-85b0-32508d5b1727">11</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMjktMy0xLTEtMA_f89bbc52-ebaf-4b44-a7b0-fe533fe10e13">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Proceeds from insurance claims of property and equipment</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ProceedsFromInsuranceSettlementInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzAtMS0xLTEtMTM3NQ_ebc54eb6-f73f-4184-a90a-d67ab4e1651e">11</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:ProceedsFromInsuranceSettlementInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzAtMy0xLTEtMjExNw_b832fc21-eb85-46ad-981f-c12c53965cfc">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">NET CASH USED IN INVESTING ACTIVITIES</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzAtMS0xLTEtMA_a7ebf647-bff7-4658-bf8f-9c5aa8c8fd0e">9,148</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:NetCashProvidedByUsedInInvestingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzAtMy0xLTEtMA_058070fc-69cb-4a4c-af3c-a7b3743f298b">8,851</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CASH FLOWS FROM FINANCING ACTIVITIES:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Payments from other long-term liabilities, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" name="ngs:ProceedsFromPurchaseCommitmentDiscountNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzItMS0xLTEtMA_c5afe97e-c9cc-403c-89e1-463ae92e6c63">5</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="ngs:ProceedsFromPurchaseCommitmentDiscountNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzItMy0xLTEtMA_65c7578e-bbac-4e3d-a14d-eff0000eb032">9</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Proceeds from exercise of stock options</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ProceedsFromStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzUtMS0xLTEtMA_3afabcf1-04df-42e8-9f17-c602fa6c71c6">555</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:ProceedsFromStockOptionsExercised" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzUtMy0xLTEtMA_3b01dcd1-409b-432e-add5-4f9ca6affce7">157</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Taxes paid related to net share settlement of equity awards</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzYtMS0xLTEtMA_ca1c7d6f-a48e-4714-86ee-0768ac10a84f">192</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:PaymentsRelatedToTaxWithholdingForShareBasedCompensation" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzYtMy0xLTEtMA_a6b74243-afdc-4f0f-b504-de6e6660313a">495</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:700;line-height:100%;">NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzgtMS0xLTEtMA_fb0c8fc2-5f23-4eb1-a1c3-897355e4550c">358</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:NetCashProvidedByUsedInFinancingActivities" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzgtMy0xLTEtMA_313e04d3-ad47-4f8b-933b-0cefb7c2def1">347</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">NET CHANGE IN CASH AND CASH EQUIVALENTS</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzktMS0xLTEtMA_c16a2219-9ed6-4965-a132-8216b7cd9d0d">12,636</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfMzktMy0xLTEtMA_c420f3ed-8aa8-4fb7-acba-a365fb11eca1">4,070</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDAtMS0xLTEtMA_ca79b0b8-cb11-4bd2-85b0-24085d324ce7">52,628</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3bf3ee252c244b29b249431435335d3d_I20171231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDAtMy0xLTEtMA_5f153323-226a-4d97-9f9e-2d29da3054ba">69,208</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">CASH AND CASH EQUIVALENTS AT END OF PERIOD</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDEtMS0xLTEtMA_a4240581-d3bd-417c-9ccd-63af073ff77b">39,992</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i4bba0c004d8a4aae847f8d6794f04516_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDEtMy0xLTEtMA_8c749c27-249b-420a-bb25-9db396b1ce6c">65,138</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Interest paid</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:InterestPaidNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDMtMS0xLTEtMA_1c241370-d2d3-431a-bcc1-14f29f8764ca">4</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncomeTaxesPaid" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDQtMS0xLTEtMA_5eec7274-17f6-47e0-9849-6734e3b0857a">2</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:IncomeTaxesPaid" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDQtMy0xLTEtMA_3c31725a-1962-4793-9b8e-adfe609a141e">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">NON-CASH TRANSACTIONS</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Transfer of rental equipment components to inventory</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="ngs:TransferOfRentalEquipmentToInventory" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDYtMS0xLTEtMA_b15d8f1d-4170-4048-90b5-641ae71cddd0">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="ngs:TransferOfRentalEquipmentToInventory" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDYtMy0xLTEtMA_cb7bbb11-4112-43fc-9566-3f9caf3200a6">40</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Transfer of prepaids to rental equipment and inventory</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="ngs:TransferOfPrepaidsToRentalEquipmentAndInventory" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDctMS0xLTEtMA_1bf27326-6378-4af9-877c-ef746e4471ea">574</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="ngs:TransferOfPrepaidsToRentalEquipmentAndInventory" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDctMy0xLTEtMA_9c36aeef-821a-4ba5-9733-9dfe384020e5">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:24pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use acquired through an operating lease</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8yNS9mcmFnOmZjM2UxMDhlY2E2ODQ4OWE4ZjM1ZjkwYTY4YzY2ZWVlL3RhYmxlOjY2MGU2Mjc4NmQwNTRhMDFhMTc1OTRmODgzMzMxMWNkL3RhYmxlcmFuZ2U6NjYwZTYyNzg2ZDA1NGEwMWExNzU5NGY4ODMzMzExY2RfNDktMS0xLTEtMTIwNw_426bb81a-8c25-479c-9a69-ff85bdda4f7c">126</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">See accompanying notes to these unaudited condensed consolidated financial statements.</span></div><div id="i_0_28"></div><div style="text-align:center;-sec-extract:summary;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">4</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Natural Gas Services Group, Inc.</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Notes to Condensed Consolidated Financial Statements</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">(unaudited)</span></div><div id="i_0_31"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;"> (1) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTU0MDA_a9e63a6f-0d2e-4ff9-aad0-087a81e37ce0" continuedAt="i52df25d3eb9d40bc8d2a453dccc08bb0" escape="true">Basis of Presentation and Summary of Significant Accounting Policies</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i52df25d3eb9d40bc8d2a453dccc08bb0" continuedAt="i132a141914b242beb81052f548189029"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:BasisOfAccountingPolicyPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTc_c0edf33f-9d97-4ddc-adbc-370230b39517" escape="true"><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These notes apply to the unaudited condensed consolidated financial statements of Natural Gas Services Group, Inc. a Colorado corporation&#160;(the "Company", &#8220;NGSG&#8221;, "Natural Gas Services Group", "we" or "our").&#160;&#160;The accompanying unaudited condensed consolidated financial statements include the accounts of the Company, its subsidiary, NGSG Properties, LLC and the rabbi trust associated with the Company's deferred compensations plan, see Note 4. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These financial statements include all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at March 31, 2019 and the results of our operations for the three months ended March 31, 2019&#160;and 2018 not misleading.&#160;&#160;As permitted by the rules and regulations of the Securities and Exchange Commission (SEC), the accompanying condensed consolidated financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP).&#160;&#160;These financial statements should be read in conjunction</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 on file with the SEC.&#160;&#160;In our opinion, the condensed consolidated financial statements are a fair presentation of the financial position, results of operations, changes in stockholders' equity and cash flows for the periods presented.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2019.</span></div></ix:nonNumeric><div><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:RevenueFromContractWithCustomerPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTA_d351cd7a-6d05-4b8a-b553-e9c7d75c0264" continuedAt="id3ea4b0c2a58448fa00dba41d9b66638" escape="true"><div style="margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Revenue Recognition Policy</span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606") on January, 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below.&#160;&#160;&#160;&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company applied ASC 606 using the cumulative effect method. We had no significant changes in our recognition of revenue at adoption and our review of all open revenue from contracts with customers on January 1, 2018 indicated we had no adjustment to be made. If an adjustment had been needed, we would have recognized the cumulative effect of initially applying ASC 606 with an adjustment to the opening balance of equity at January 1, 2018.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is measured based on a consideration specified in a customer&#8217;s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).  We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our condensed consolidated income statement. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Nature of Goods and Services</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following is a description of principal activities from which the Company generates its revenue: </span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:115%;">Rental Revenue. </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include a fee for servicing the compressor or flare during the rental contract. Our rental contracts range from six to twenty-four months, with revenue  being recognized over time, in equal payments over the term of the contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter. In accordance ASC 842 &#8211; Leases, we have applied the practical expedient ASC 842-10-15-42A, which allows the Company to combine lease and non-lease components.</span></div><div style="padding-left:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Sales Revenue.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Company generates revenue by the sale of custom/fabricated compressors, flare systems and parts, as well as, exchange/rebuilding customer owned compressors and sale of used rental equipment. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Custom/fabricated compressors and flare systems - The Company designs and fabricates compressors and flares based on the customer&#8217;s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the customer until the compressor or flare package is complete and shipped, or in accordance with a bill and hold arrangements the customer accepts title and assumes the risk and rewards of ownership. We request some of our  customers to make progressive payments as the product is being built; these payments are recorded as a contract liability on the Deferred Income line on the condensed consolidated balance sheet until control has been transferred. &#160;</span></div></ix:nonNumeric></ix:continuation><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">5</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="i132a141914b242beb81052f548189029" continuedAt="ifb3d2fab799648639b62c67d7b715505"><ix:continuation id="id3ea4b0c2a58448fa00dba41d9b66638"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a standard industry practice and is not considered a performance obligation. </span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">From time to time, upon the customer&#8217;s written request, we recognize revenue when manufacturing is complete and the equipment is ready for shipment. At the customer&#8217;s request, we will bill the customer upon completing all performance obligations, but before shipment. The customer will formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment from our finished goods, such that they are not available to fill other orders. Per the customer&#8217;s agreement change of control is passed to the customer once the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is shouldered by the customer and there are no exceptions to the customer&#8217;s commitment to accept and pay for the manufactured equipment. Revenues recognized related to bill and hold arrangements for the three months ended March 31, 2019 was approximately $<ix:nonFraction unitRef="usd" contextRef="i02103f4ce3954c9490816c0b3f7c130e_D20190101-20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfNjQxMg_366a463f-9576-4556-affc-265b8dead90e">2.7</ix:nonFraction> million.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Parts</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"> - </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis. </span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the customer&#8217;s malfunctioning compressor or rebuild the customer&#8217;s compressor. Revenue is recognized after control of the replacement compressor has transferred to the customer by physical delivery, delivery and installment or shipment of the compressor.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue from the sale of rental equipment is recognized when the control has passed to the customer, when the customer has taken physical possession or the equipment has been shipped.</span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Service and Maintenance Revenue</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after services in the contract are rendered. </span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific customers can vary. Also, the transaction prices are not subject to variable consideration constraints.</span></div></ix:continuation><div style="text-indent:36pt;"><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Disaggregation of Revenue</span></div><div style="text-indent:36pt;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:DisaggregationOfRevenueTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTg_cd16b019-4ee4-4228-9db6-1f79bab89685" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table shows the Company's revenue disaggregated by product or service type for the three months ended March 31, 2019 and 2018:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:68.467836%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:11.450292%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.239766%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.842105%;"></td><td style="width:1.0%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:21pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:21pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Three months ended March 31,</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Compressors - sales</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" 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colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="iea22d20f4433453ebc24cf4e497320a2_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfMy0zLTEtMS0w_fc10faca-260a-4e53-9d07-1a15e2c70239">1,829</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Flares - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ie67e3def44204a6284c95868bc203db1_D20190101-20190331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNC0xLTEtMS0w_3189cf35-919c-4063-be1d-042b1e631234">435</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i39d8ffb3b7b84fb0828d958df23b961f_D20180101-20180331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNC0zLTEtMS0w_4c6db82e-82fd-4906-a23e-66a8321ca9f4">522</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Other (Parts/Rebuilds) - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i4aa4f69dd4e845b991c4b818f50cca57_D20190101-20190331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNS0xLTEtMS0w_fdd164e9-285a-4a19-ad64-060adc695ff9">982</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="idcb663211b3d4de5a936fed96b575cc4_D20180101-20180331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNS0zLTEtMS0w_b0c0df86-8093-44b0-84d0-c3b56707350f">647</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Service and maintenance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNi0xLTEtMS0w_88e87efd-493a-4733-ba19-8168027679e9">479</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ib4f6fa92e223462c82c14959b880eee2_D20180101-20180331" decimals="-3" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNi0zLTEtMS0w_40155b1b-5d5b-44eb-abd2-ffbd2a384ed8">249</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue from contracts with customers</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNy0xLTEtMS0w_a8f95b64-4224-487a-8346-f0897ad792da">4,604</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfNy0zLTEtMS0w_b2f60273-0283-498e-8fa4-a9508511fe7a">3,247</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Add: non-ASC 606 rental revenue</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RentalIncomeNonoperating" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfOC0xLTEtMS0w_89b797a6-9619-4d45-98ae-4cb0f49893dc">13,387</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:RentalIncomeNonoperating" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfOC0zLTEtMS0w_e977c8f3-979e-40c6-8191-ee17c2e4fd7c">11,471</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfOS0xLTEtMS0w_082cfb1a-35e1-4317-a816-d36c11020b6c">17,991</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmQ0OGNkM2E0OTFiODRkOTg4ZDU3Mjg5NTUxZDQxZWY4L3RhYmxlcmFuZ2U6ZDQ4Y2QzYTQ5MWI4NGQ5ODhkNTcyODk1NTFkNDFlZjhfOS0zLTEtMS0w_02359563-1b36-44ab-aff8-4b1d8de8e4a6">14,718</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr></table></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;"><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">6</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div><span><br/></span></div><ix:continuation id="ifb3d2fab799648639b62c67d7b715505" continuedAt="ic36f73cdaffc4d4c96cf6d1515b5e22a"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Contract Balances</span></div><div style="text-indent:108pt;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTE_8178ba8f-43c1-4840-8ba9-b55afbfc5b1a" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019 and December 31, 2018, we had the following receivables and deferred income from contracts with customers: </span></div><div style="text-indent:18pt;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:61.157895%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.836257%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.285380%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:14.520468%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31, 2018</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Accounts Receivable</span></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - contracts with customers</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerAssetNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfMy0xLTEtMS0w_648a2121-3308-427e-a065-e327d64a1f29">3,484</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ContractWithCustomerAssetNetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfMy0zLTEtMS0w_bd3b5abb-e2a9-4d13-9c17-465f573edbe7">2,250</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - non-ASC 606</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="ngs:AccountsReceivableExcludingContractsWithCustomerAssetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNC0xLTEtMS0w_72e906d3-928b-4a48-a6f5-0976474a3ad2">7,113</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="ngs:AccountsReceivableExcludingContractsWithCustomerAssetCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNC0zLTEtMS0w_23b04443-837f-4ef8-bba9-a6c703ed77e3">5,260</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableGrossCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNS0xLTEtMS0w_75d22bfe-ebac-4d5e-9ca8-fbb5d7b149d4">10,597</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableGrossCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNS0zLTEtMS0w_6bd53883-16fc-45ce-a75b-bcc9812861e9">7,510</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Allowance for doubtful accounts</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNi0xLTEtMS0w_06239f1e-7add-40bd-b375-322bf6f938bd">299</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:AllowanceForDoubtfulAccountsReceivableCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfNi0zLTEtMS0w_28dd0e33-2cdc-449e-8d31-2f92961e8bfb">291</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable, net</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:AccountsReceivableNetCurrent" scale="3" 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#000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Deferred income</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:ContractWithCustomerLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOjY4MDZjNDAzNjhlZDRkZmZiODI1ZWU0ZGYzYjI3ODQyL3RhYmxlcmFuZ2U6NjgwNmM0MDM2OGVkNGRmZmI4MjVlZTRkZjNiMjc4NDJfOS0xLTEtMS0w_d95c7d2d-0c38-46cd-bc4a-e40e53df5142">133</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 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style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance Sheet</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Assets</span></td><td colspan="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:zerodash" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" 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id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfMy0zLTEtMS0yNDU4_c4f544a7-0681-489c-b013-680d8a8f00e7">451</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ic78febda21604690bc1f6d3f40b33872_I20190101" decimals="-3" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfMy01LTEtMS0yNDYy_4185c454-4d21-49fd-b7b5-0301bac6e8be">451</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Liabilities</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:zerodash" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNS0xLTEtMS0yNDU0_fda3c402-028b-49e1-bb7d-d3f2ce6dc5f6">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101" decimals="-3" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNS0zLTEtMS0yNDYw_10ca39d6-771e-4c67-bd22-be3e33f5b114">126</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ic78febda21604690bc1f6d3f40b33872_I20190101" decimals="-3" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNS01LTEtMS0yNDYz_079c13e9-5ace-43e6-bca1-20f256a7e5f5">126</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long term portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:zerodash" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNi0xLTEtMS0yNDU2_aaa6cd24-fcee-4c9d-81aa-1d6e04a9bd25">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101" decimals="-3" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNi0zLTEtMS0yNDYx_46b2571c-db82-41cb-a75d-f3d1ecd80766">325</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ic78febda21604690bc1f6d3f40b33872_I20190101" decimals="-3" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RhYmxlOmI0NGQ1YjRkYTMyZTQyOWFhNTA1MTUyMDc5ODkxOWViL3RhYmxlcmFuZ2U6YjQ0ZDViNGRhMzJlNDI5YWE1MDUxNTIwNzk4OTE5ZWJfNi01LTEtMS0yNDYw_9b036917-5a03-4ce3-9480-f3bdd33fd54d">325</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr></table></div></ix:nonNumeric><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessee, applies the practical expedient in ASC 842-10-15-37, and does not separate non-lease components from lease components, therefore, accounting for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessor, applies the practical expedient in ASC 842-10-15-42A, in leases that contain the same timing and pattern of transfer for lease and non-lease components and are deemed operating leases, the lessor is not required to separate non-lease components from lease components. Therefore, on any lease that meets these qualifications we have chosen to account for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company applies the practical expedient in ASC 842-20-25-2, to recognize the lease payments in profit or loss on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred for leases with terms of 12 months or less.</span></div></ix:continuation><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:FairValueOfFinancialInstrumentsPolicy" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzODk_789e58b8-4130-47ab-a371-e7ca1d4a6f01" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Fair Value of Financial Instruments</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, deferred compensation plan (cash portion) and our line of credit.  Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on &#8220;Level 1&#8221; inputs, which consist of quoted prices in active markets for identical assets.  We believe that the recorded values of all of our other financial instruments approximate their fair values because of their nature (variable rate debt)  and relatively short maturity dates or durations.</span></div></ix:nonNumeric><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:IncomeTaxPolicyTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTU_808aa3b2-afe0-47e8-822a-102743d8099e" continuedAt="i32adcedb72ff469bac68ae8f81929078" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:174%;">Income Taxes</span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each of the states in which we operate. This process involves us estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheet. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the tax provision in the statement of operations.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax assets.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that has a greater than 50 percent likely of being realized upon ultimate settlement. &#160;</span></div></ix:nonNumeric></ix:continuation><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">8</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="i720b0145464042e29550f837af5f180d"><ix:continuation id="i32adcedb72ff469bac68ae8f81929078"><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our policy regarding income tax interest and penalties is to expense those items as other expense.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">During the fourth quarter of 2018, the Company discovered a potential uncertain tax position attributable to the deductibility of certain executive compensation expense for federal income tax purposes aggregating approximately $<ix:nonFraction unitRef="usd" contextRef="i23cb5d9b24794cf6a95cf9dd85fc5c1b_D20181001-20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA3OQ_f1fa3a34-5c75-4041-a09c-a060862230d3">168,000</ix:nonFraction>, $<ix:nonFraction unitRef="usd" contextRef="ib6af96940a194d67b5a601404eb423e5_D20181001-20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA3MA_eebc0412-33b2-4004-a22b-ef4d93fdbbde">149,000</ix:nonFraction> and&#160;$<ix:nonFraction unitRef="usd" contextRef="i6c820f8630f4410694db2d1fc85ce0bb_D20181001-20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA2MA_f927148e-4a79-4836-bdb0-de5ed590a5cb">230,000</ix:nonFraction> for the years ended December 31, 2017, 2016 and 2015, respectively.  As a result, in accordance with ASC Topic 740, during the fourth quarter of 2018, the Company recorded a tax adjustment of $<ix:nonFraction unitRef="usd" contextRef="ib25b9787424d4bd8ba2b6f31e7a15846_D20181001-20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA0Nw_aa300c63-93db-43e2-9128-0279636d48a8">547,000</ix:nonFraction> and accrued penalty and interest expense of $<ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTAzNg_bcc03559-9483-460d-9c88-31de258a1b79">55,000</ix:nonFraction> attributable to the uncertain tax position.  Management of the Company determined that the effect of the potential uncertain tax position on previously reported results of operations for the years ended December 31, 2017 and 2016 was not material.&#160;The Company plans on amending its previously filed federal income tax returns and is in the process of analyzing certain offsetting deductions to reduce uncertain tax position reserve.</span></div></ix:continuation><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:PriorPeriodReclassificationAdjustmentDescription" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTQ_140fbc9e-2bb3-4119-b83e-002fbaeff42f" escape="true"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Reclassification of Prior Period Balances</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Certain reclassifications have been made to prior period amounts, due to our adoption of ASC 842, to conform to the current-year presentation. These reclassifications had no effect on the financial statements.</span></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;margin-bottom:12pt;"><span><br/></span></div><div id="i_0_37"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">  (2) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5MQ_1fbedb89-210c-493b-b482-ed2272b0182b" continuedAt="i09d971e80a104800a3e389141ca68402" escape="true">Stock-Based Compensation</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i09d971e80a104800a3e389141ca68402" continuedAt="ifc2cf58996c5427894fa3f461461efa1"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Stock Options:</span></div><div><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5Mg_4eea49df-601a-4bf5-940c-d7d15b4e85b6" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">A summary of option activity under our 1998 Stock Option Plan  as  of December 31, 2018, and changes during the three months ended March 31, 2019 is presented below.</span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"></td><td style="width:45.128130%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:10.665685%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.665685%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.665685%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.665685%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Number</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;of</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stock Options</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Aggregate</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Intrinsic</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Value</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMS0xLTEtMS0w_48bf4b63-15dc-4358-b44e-46cf9fa08481">283,686</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMS0zLTEtMS0w_a050f01b-0564-46bb-99ec-b8ffea852c40">20.46</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i5a4f53dc2587426fb7adf33dc9cb9c15_D20180101-20181231" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMS01LTEtMS0w_593b365c-1c0b-4b35-9284-37af4d8faf7a">3.58</ix:nonNumeric></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMS03LTEtMS0w_6f418b9f-e097-4534-821b-bed72944e6f3">434</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercised</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:StockIssuedDuringPeriodSharesStockOptionsExercised" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMy0xLTEtMS0w_c94c70cb-fa4e-4e40-b1c7-958b9f2c3b38">56,352</ix:nonFraction>)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMy0zLTEtMS0w_cd401cb3-61b5-48fa-b572-31f98010d193">8.97</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfMy03LTEtMS0w_5b45f733-d8dd-46cd-b72c-7b7f1407be59">474</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Canceled/Forfeited</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNC0xLTEtMS0w_ee28e044-18b4-498e-afeb-81f321b54936">2,000</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNC0zLTEtMS0w_33e31c45-755c-4709-ae6d-064a6a75377e">26.66</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="ngs:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCanceledOrForfeitedInPeriodIntrinsicValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNC03LTEtMS0w_f2e86cd2-84cc-4227-baa0-b83affdcd115">&#8212;</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNi0xLTEtMS0w_771a4ebc-47e8-43df-900d-6386d9614b40">225,334</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNi0zLTEtMS0w_720affdb-26f4-4f30-af4e-1b5ec702e942">23.28</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNi01LTEtMS0w_5f566897-8882-4742-86a2-f5ea431ad865">4.18</ix:nonNumeric></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNi03LTEtMS0w_110dd8aa-4964-4ba3-9853-34db15e2862c">26</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Exercisable, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNy0xLTEtMS0w_887f2e70-88dd-42d1-9fe6-0249d4ce1626">214,901</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="2" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNy0zLTEtMS0w_0593dd40-b8bd-4e6c-b4b1-2d9e1100d580">23.04</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNy01LTEtMS0w_e375c887-a1b1-4447-bc8b-1c704c1bbe49">4.00</ix:nonNumeric></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmE1ODA2N2Y1YTFjZDRkOWJiOGZkYWIyMDc4Mzg0Y2M1L3RhYmxlcmFuZ2U6YTU4MDY3ZjVhMWNkNGQ5YmI4ZmRhYjIwNzgzODRjYzVfNy03LTEtMS0w_209e7f9a-2d09-4e6a-8d62-ac47d3e0db5f">26</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric><div style="text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5NA_f94730d1-cd34-4c0b-b9ed-aa2cdb858307" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table summarizes information about our stock options outstanding at March 31, 2019:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"></td><td style="width:38.588235%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:9.323529%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.176471%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.323529%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.323529%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.323529%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Range of Exercise Prices</span></div></td><td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Outstanding</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Exercisable</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$0.01-15.70</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="ic55fef389c57471aa8d14a74b79dcad4_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMi0xLTEtMS0w_de271342-4d43-4534-bd0a-2847fe613999">8,500</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i5659cb44101543c6990cc3c42da5b442_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMi0zLTEtMS0w_dd6d8ff3-2fbf-45f0-87c3-dfef7c6117aa">2.82</ix:nonNumeric></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="ic55fef389c57471aa8d14a74b79dcad4_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMi01LTEtMS0w_9a368363-bb4f-4ce2-a074-a404ad91c5d3">14.89</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="ic55fef389c57471aa8d14a74b79dcad4_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMi03LTEtMS0w_e9dc92a9-99b8-428d-b376-46192ba86e7d">8,500</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="ic55fef389c57471aa8d14a74b79dcad4_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMi05LTEtMS0w_95c6ff1c-49f9-44da-8ed6-9a0436998f34">14.89</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$15.71-17.81</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i4d7bddb8c9da4c1082407c5d94ef016b_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMy0xLTEtMS0w_ed43d0e0-4ece-4068-bf38-09ebdbfd4451">42,000</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="ie6b49ab1ce0f43e19aa8cf8abe3812ee_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMy0zLTEtMS0w_7bc47923-669f-4b9b-b8d9-91b9a92b79f5">1.32</ix:nonNumeric></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i4d7bddb8c9da4c1082407c5d94ef016b_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMy01LTEtMS0w_10c34e70-67fe-4c1a-90eb-ffbe302ec654">17.54</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i4d7bddb8c9da4c1082407c5d94ef016b_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMy03LTEtMS0w_068aeb51-4705-4585-81f7-dd06863b3c54">42,000</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i4d7bddb8c9da4c1082407c5d94ef016b_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfMy05LTEtMS0w_ac716f37-5fa0-467c-99b8-1a46d609885e">17.54</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$17.82-20.48</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i039b713b608a4e519263fd2010644126_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNC0xLTEtMS0w_0125e2e8-660c-4306-a489-5dcf40a5d837">50,500</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="ib7541d8055724b5e9b6e06640006e13f_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNC0zLTEtMS0w_d0c6a581-8066-49ed-8a58-421560f15d94">2.09</ix:nonNumeric></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i039b713b608a4e519263fd2010644126_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNC01LTEtMS0w_e609fb7f-4778-417c-ba9b-45c374ffeb17">19.43</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i039b713b608a4e519263fd2010644126_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNC03LTEtMS0w_328856b7-c7ac-438e-85b9-fbd96a663848">50,500</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New 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0.0);">$20.49-33.36</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i2c17a36799424212a3ef7474c5fde857_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNS0xLTEtMS0w_bf0b3446-16c7-4e45-b1f9-a6728dcdfeff">124,334</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i92c5783f4c1f448d8862a7131d5d1e86_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNS0zLTEtMS0w_5d5d8f3b-e513-4a55-88bb-68bd2dd7307c">6.08</ix:nonNumeric></span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i2c17a36799424212a3ef7474c5fde857_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNS01LTEtMS0w_671e3757-756c-4496-bd58-6b54679b32ab">27.36</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i2c17a36799424212a3ef7474c5fde857_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNS03LTEtMS0w_f62f180c-6dc0-426b-8376-e7662852be39">113,901</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i2c17a36799424212a3ef7474c5fde857_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNS05LTEtMS0w_1f5e44ca-a5f2-4f49-a2e3-a920f65cc790">27.29</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNi0xLTEtMS0w_19253141-c8fa-44f7-8a80-de0568da4e13">225,334</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" format="ixt-sec:duryear" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNi0zLTEtMS0w_2f2244f9-3d9f-4881-8557-fe2caf757132">4.18</ix:nonNumeric></span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNi01LTEtMS0w_bf3ccfe1-bcfa-49ad-be3b-f0e9e33653c4">23.28</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNi03LTEtMS0w_ee1dfb84-ef8f-4aaf-9925-0f528bb4631d">214,901</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="2" name="us-gaap:SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOjg4YzdmNTNhZjM0NTQ5ODdhZWJiOTEwY2ZjNjdhZjNiL3RhYmxlcmFuZ2U6ODhjN2Y1M2FmMzQ1NDk4N2FlYmI5MTBjZmM2N2FmM2JfNi05LTEtMS0w_94e6e997-120c-47e3-8e0d-aee21e6a21c6">23.04</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">9</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="ifc2cf58996c5427894fa3f461461efa1" continuedAt="i13b33f5851194e7e88fed3ab1ad2f4ff"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfStockOptionsRollForwardTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5Ng_61e049ca-9249-44a7-93c8-c017746ec7d0" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The summary of the status of our unvested stock options as of December 31, 2018 and changes during the three months ended&#160;March 31, 2019 is presented below.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:72.008811%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:10.628488%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.534214%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.628488%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Unvested stock options:</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Grant Date Fair Value Per Share</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" 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0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="2" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmJhYmVjYzFiZDMyMDRmYzQ5ODg4OTczZGVhYjI2NDg3L3RhYmxlcmFuZ2U6YmFiZWNjMWJkMzIwNGZjNDk4ODg5NzNkZWFiMjY0ODdfMS0zLTEtMS0w_d321aa27-1f73-4231-9f6b-b62ab32208a1">11.93</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Vested</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmJhYmVjYzFiZDMyMDRmYzQ5ODg4OTczZGVhYjI2NDg3L3RhYmxlcmFuZ2U6YmFiZWNjMWJkMzIwNGZjNDk4ODg5NzNkZWFiMjY0ODdfMy0xLTEtMS0w_3de9004f-b98f-4fd8-9130-100e23a4ab3b">10,432</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmJhYmVjYzFiZDMyMDRmYzQ5ODg4OTczZGVhYjI2NDg3L3RhYmxlcmFuZ2U6YmFiZWNjMWJkMzIwNGZjNDk4ODg5NzNkZWFiMjY0ODdfMy0zLTEtMS0w_e3c70554-bd2a-419f-ab99-c609188fdb3a">11.93</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmJhYmVjYzFiZDMyMDRmYzQ5ODg4OTczZGVhYjI2NDg3L3RhYmxlcmFuZ2U6YmFiZWNjMWJkMzIwNGZjNDk4ODg5NzNkZWFiMjY0ODdfNS0xLTEtMS0w_463a86d3-7e5a-4a49-8a3d-bbd24ce7ed48">10,433</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="2" name="us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RhYmxlOmJhYmVjYzFiZDMyMDRmYzQ5ODg4OTczZGVhYjI2NDg3L3RhYmxlcmFuZ2U6YmFiZWNjMWJkMzIwNGZjNDk4ODg5NzNkZWFiMjY0ODdfNS0zLTEtMS0w_b72b5798-7455-45b4-badb-8b05c173b24f">11.93</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019, there was $<ix:nonFraction unitRef="usd" contextRef="i94c9eb4621f949a3a04f45c0e59a5d8d_I20190331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfNDI1_9f9a1c38-79e9-469e-9f71-bf576badf026">103,018</ix:nonFraction> of unrecognized compensation cost related to unvested options.&#160;&#160;Such cost is expected to be recognized over a weighted-average period of <ix:nonNumeric contextRef="i07fbd2c16f4344e3ae7d229b18b66d41_D20190101-20190331" format="ixt-sec:durwordsen" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMzg0ODI5MDcwODg2OA_28780b95-f9ad-443c-ac2e-4187d1285ebe">one year</ix:nonNumeric>.&#160;Total compensation expense for stock options was $<ix:nonFraction unitRef="usd" contextRef="i07fbd2c16f4344e3ae7d229b18b66d41_D20190101-20190331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfNjE4_e53788c7-3785-4ed9-bb8c-46c77ab0adc7">30,779</ix:nonFraction> and $<ix:nonFraction unitRef="usd" contextRef="i29cdee75521648209c984491eb543f85_D20180101-20180331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfNjI1_01c813a1-7cda-4554-9d00-96a8e1c5c43b">66,625</ix:nonFraction> for the three months ended&#160;March 31, 2019 and 2018, respectively. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Restricted Shares/Units:</span></div></ix:continuation><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><ix:continuation id="i13b33f5851194e7e88fed3ab1ad2f4ff" continuedAt="i980548ebc9e74ea1a6f3f112cd25108e"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">In accordance with the Company's employment agreement with Stephen Taylor, the Company's Chief Executive Officer, the Compensation Committee reviewed his performance in determining the issuance of restricted common stock.  Based on this review which included consideration of the Company's 2018 performance, Mr. Taylor, was awarded <ix:nonFraction unitRef="shares" contextRef="i71a624ce7ebf4700b964fe84228edad0_D20190329-20190329" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTAyMg_b37b42ca-bffe-4c8e-b918-513046249bf1">131,674</ix:nonFraction> restricted shares/units on March 29, 2019, which vest over <ix:nonNumeric contextRef="i71a624ce7ebf4700b964fe84228edad0_D20190329-20190329" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTA4NA_53cdb477-78ea-4177-9439-5f59983c21f1">three years</ix:nonNumeric>, in equal annual installments, beginning March 29, 2020. On March 29, 2019, the Compensation Committee awarded  <ix:nonFraction unitRef="shares" contextRef="iad20b9f18fc94b5a94733dccb3a31190_D20190329-20190329" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTE5Nw_0b6ad8d9-2c73-4fcb-8d4d-f90506a04f0a"><ix:nonFraction unitRef="shares" contextRef="i2a11ed55b1024d668ec0e0a2239d077c_D20190329-20190329" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTE5Nw_5736c077-8b10-4656-9232-5f57e63b8b7a">20,000</ix:nonFraction></ix:nonFraction> restricted shares/units to each of G. Larry Lawrence, our CFO, and James Hazlett, our Vice President of Technical Services. The restricted shares to Messrs.  Lawrence and Hazlett vest over <ix:nonNumeric contextRef="iad20b9f18fc94b5a94733dccb3a31190_D20190329-20190329" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTM4OQ_c5cca628-2e36-4cab-89ab-ff2aa4aeaf2a"><ix:nonNumeric contextRef="i2a11ed55b1024d668ec0e0a2239d077c_D20190329-20190329" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTM4OQ_f783e109-b733-4c48-8a2f-4ca76c336671">three years</ix:nonNumeric></ix:nonNumeric>, in equal annual installments, beginning March 29, 2020. The restricted common stock awarded to Messrs. 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The restricted stock issued to our directors vests over <ix:nonNumeric contextRef="i396538ccec554185b905b59b1cab3e96_D20190101-20190331" format="ixt-sec:durwordsen" name="us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTY3Mw_4ec82f08-e5b2-4b6d-a54d-3e399038f497">one year</ix:nonNumeric>, in quarterly installments, beginning March 31, 2020. Total compensation expense related to restricted awards was $<ix:nonFraction unitRef="usd" contextRef="i07cfadf438e4464aaca8101692c418f3_D20190101-20190331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTc5MA_3e779fa2-2bfd-4a2c-9af5-d847a40c0ccc">463,466</ix:nonFraction> and $<ix:nonFraction unitRef="usd" contextRef="i5e4a9046b8974990848acd24d354affb_D20180101-20180331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:AllocatedShareBasedCompensationExpense" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTc5Nw_1ae61bf7-7801-4caa-a97b-a689f1c2b4ad">361,630</ix:nonFraction> for the three months ended&#160;March 31, 2019 and 2018, respectively.  As of March 31, 2019, there was a total of $<ix:nonFraction unitRef="usd" contextRef="i80f519033cd341ce95bfcc66761255e0_I20190331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTg2OA_1c07f7a1-cbd9-4349-9e0b-994d5554fd5a">2.6</ix:nonFraction> million of unrecognized compensation expense related to these shares/units which is expected to be recognized over the next <ix:nonNumeric contextRef="i07cfadf438e4464aaca8101692c418f3_D20190101-20190331" format="ixt-sec:durwordsen" name="us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk4Nw_6dc99b07-9a31-4c56-b75c-6d45641542eb">two years</ix:nonNumeric>.</ix:continuation>&#160;</span></div><div><span><br/></span></div><div id="i_0_43"></div><div><span><br/></span></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">(3) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:InventoryDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RleHRyZWdpb246YmZhY2NmNDEyMjk5NDAwYzlmZDliNDZkOGYyMjI1MzRfNDA5_8b86f90d-58c7-428b-b407-87046e4c0a95" continuedAt="i7121a2eef601451cb545894c3a397e89" escape="true">Inventory</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i7121a2eef601451cb545894c3a397e89"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfInventoryCurrentTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RleHRyZWdpb246YmZhY2NmNDEyMjk5NDAwYzlmZDliNDZkOGYyMjI1MzRfNDEw_18b8a17e-46d1-4a25-babe-bfd95527a077" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 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0.0);">Raw materials - long term, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="ngs:InventoryNoncurrentRawMaterialsNetofReserves" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfMy0xLTEtMS0w_6458e01d-b3cb-4c0d-a4f8-05226a78547a">3,997</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Finished Goods</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryFinishedGoodsNetOfReserves" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfNC0xLTEtMS0w_f041017c-e072-4b11-a2fa-384627a1caf3">1,022</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryFinishedGoodsNetOfReserves" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfNC0zLTEtMS0w_f2a7225a-18ef-49f2-8152-0815a2b21279">1,022</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Work in process</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:InventoryWorkInProcessNetOfReserves" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfNS0zLTEtMS0w_5aef7ebd-7b49-4300-9a6f-95b2009c4c2a">3,800</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" format="ixt:numdotdecimal" name="ngs:InventoryCurrentAndNoncurrentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfNi0xLTEtMS0w_434caef9-e671-44a7-b0fe-7e3b1688473f">39,496</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" format="ixt:numdotdecimal" name="ngs:InventoryCurrentAndNoncurrentNet" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RhYmxlOjg0OWIxYmM5ZDA4NjRjYjBiYzhlM2E1NDM5NzVjNWE1L3RhYmxlcmFuZ2U6ODQ5YjFiYzlkMDg2NGNiMGJjOGUzYTU0Mzk3NWM1YTVfNi0zLTEtMS0w_3505bb3d-59dd-4912-bb28-6b2e269d52da">34,954</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our long-term inventory consists of raw materials that remain viable but that the Company does not expect to sell or use within the year.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">During the three months ended March 31, 2019 and 2018, there were <ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt-sec:numwordsen" name="ngs:InventoryValuationReservesDeductions" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RleHRyZWdpb246YmZhY2NmNDEyMjk5NDAwYzlmZDliNDZkOGYyMjI1MzRfMzM0_62f944c4-9a43-40fc-b57b-12c22da951a7"><ix:nonFraction unitRef="usd" 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id="i8d764b08d78b4ad29f6a07376edb07f8"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company has a non-qualified deferred compensation plan for executive officers, directors and certain eligible employees. The assets of the deferred compensation plan are held in a rabbi trust and are subject to additional risk of loss in the event of bankruptcy or insolvency of the Company. The plan allows for deferral of up to <ix:nonFraction unitRef="number" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" name="ngs:DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMzcz_16b1c778-89f0-480d-869b-07feb7d97d56">90</ix:nonFraction>% of a participant&#8217;s base salary, bonus, commissions, director fees and restricted stock unit awards. A Company owned life insurance policy held in a rabbi trust is utilized as a source of funding for the plan. The cash surrender value of the life insurance policy is $<ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:LifeInsuranceCorporateOrBankOwnedAmount" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfNjQy_49bedd0c-b997-4e6f-816e-f16e11bff9aa">1.2</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i4bba0c004d8a4aae847f8d6794f04516_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LifeInsuranceCorporateOrBankOwnedAmount" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfNjQ5_dae7ba8d-3aab-4ebe-a11b-b0fb85e44aaf">966,000</ix:nonFraction> as of March 31, 2019 and 2018, respectively. For the three months ending March 31, 2019, we reported in other income (expense) in the consolidated income statement a gain related to the policy of approximately $<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfODM3_c303df94-852c-4cd7-8b1c-ce29049882ee">99,000</ix:nonFraction> and for the same period in 2018, a loss of approximately $<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:LifeInsuranceCorporateOrBankOwnedChangeInValue" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfODk3_99b01f65-80cc-4fae-8afb-caa201c2e98e">67,000</ix:nonFraction>.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For deferrals of base salary, bonus, commissions and director fees, settlement payments are made to participants in cash, either in a lump sum or in periodic installments. The obligation to pay the deferred compensation and the deferred director fees is adjusted to reflect the positive or negative performance of investment measurement options selected by each participant and was $<ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTI4NA_368cd5dc-4483-474e-8dec-6f69f72c033b">1.2</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i4bba0c004d8a4aae847f8d6794f04516_I20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualRecordedLiability" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTI5MQ_8bc9fd64-3e40-4235-83a7-cff1380d4fdc">992,000</ix:nonFraction> as of March 31, 2019 and 2018, respectively. The deferred obligation is included in other long-term liabilities in the condensed consolidated balance sheet. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For deferrals of restricted stock units, the plan does not allow for diversification, therefore, distributions are paid in shares of common stock and the obligation is carried at grant value. As of March 31, 2019 and 2018, respectively, <ix:nonFraction unitRef="shares" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="INF" format="ixt:numdotdecimal" name="ngs:DeferredCompensationArrangementwithIndividualDeferredRestrictedStock" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTY0Mw_40db0c8c-fa25-43de-9b1a-da7c26aa23b3">63,062</ix:nonFraction> and&#160;<ix:nonFraction unitRef="shares" contextRef="i4bba0c004d8a4aae847f8d6794f04516_I20180331" decimals="INF" format="ixt:numdotdecimal" name="ngs:DeferredCompensationArrangementwithIndividualDeferredRestrictedStock" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTY0OTI2NzQ0NDA2MQ_ba59bead-9102-41ae-af4c-4ade9b2ece43">104,590</ix:nonFraction>&#160;unvested restricted stock units have been deferred of which <ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTcwNg_ebac47a3-f836-4fad-8198-21a453c35f9b">78,771</ix:nonFraction>&#160;and&#160;<ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTY0OTI2NzQ0NDA4OA_e73c23a8-b749-4a0d-b01d-b79b44c6d383">32,037</ix:nonFraction>&#160;units have been released and issued to the deferred compensation plan with a value of $<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTc5NQ_4a0a9a16-d659-4b68-8e1f-4351d1439386">1.7</ix:nonFraction> million and $<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="0" format="ixt:numdotdecimal" name="us-gaap:DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81NS9mcmFnOjgzNTI4ZGVhN2Y4MzRmYzU5NDQwYjFmZTBiMDAxMjliL3RleHRyZWdpb246ODM1MjhkZWE3ZjgzNGZjNTk0NDBiMWZlMGIwMDEyOWJfMTY0OTI2NzQ0NDExNQ_a8e6eb7b-1908-4c78-a638-b8eff19d4e51">816,373</ix:nonFraction>, respectively.</span></div></ix:continuation><div style="text-indent:18pt;text-align:justify;"><span><br/></span></div><div id="i_0_58"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">(5) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:DebtDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNTI3MQ_dbe4f63a-5c23-4d44-8a29-53c9b17251cb" continuedAt="if2fc2fbca3d8430daf97658fd4fe827c" escape="true">Credit Facility</ix:nonNumeric></span></div><div style="text-align:justify;"><span><br/></span></div><ix:continuation id="if2fc2fbca3d8430daf97658fd4fe827c" continuedAt="ie63ff1d9ebb14b309b4abcb3cc0db1fc"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We have a senior secured revolving credit agreement the ("Amended Credit Agreement") with JP Morgan Chase Bank, N.A (the "Lender") with an aggregate commitment of $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMTkw_62a78b97-9cf6-408d-be05-1fe0799d62bd">30</ix:nonFraction> million, subject to collateral availability. We also have a right to request from the Lender, on an uncommitted basis, an increase of up to $<ix:nonFraction unitRef="usd" contextRef="ibec0ad6c78a448998623071d9687e73d_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="ngs:LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMzI1_513c182a-b963-4c48-9a11-48b7707f9233">20</ix:nonFraction> million on the aggregate commitment (which could potentially increase the commitment amount to $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" format="ixt:numdotdecimal" name="ngs:LineOfCreditFacilityPotentialMaximumBorrowingCapacity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNDE1_9f746eb5-bbf7-4553-8451-e7a165174b74">50</ix:nonFraction> million).  On August 31, 2017, we amended and renewed the Amended Credit Agreement, extending the maturity date to December 31, 2020. No other material revisions were made to the credit facility.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Borrowing Base</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. At any time before the maturity of the Amended Credit Agreement, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) <ix:nonFraction unitRef="number" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" name="ngs:LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfODc0_2074b90e-51dc-47f3-b3d1-c92f015a3cb7">80</ix:nonFraction>% of our eligible accounts receivable plus (b) <ix:nonFraction unitRef="number" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" name="ngs:LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfOTIy_8c3b6d54-af22-4f61-9877-2fbf41c446b3">50</ix:nonFraction>% of the book value of our eligible general inventory (not to exceed <ix:nonFraction unitRef="number" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" name="ngs:LineOfCreditFacilityCurrentBorrowingCapacityAllowableShareOfTotalCommitmentAmountAttributableToGeneralInventoryComponent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfOTky_1031b457-7f82-41cb-a02b-2d375f40ab97">50</ix:nonFraction>%  of the commitment amount at the time) plus (c) <ix:nonFraction unitRef="number" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" name="ngs:LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMTA0Mw_eecfc86f-2431-4c6d-859d-2ab7d53405e8">75</ix:nonFraction>% of the book value of our eligible equipment inventory.&#160;&#160;The Lender may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. We had $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:LineOfCreditFacilityCurrentBorrowingCapacity" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMTI1Mw_dd767bc4-8633-4eb0-a46c-7e514a983270">29.5</ix:nonFraction> million borrowing base availability at March 31, 2019 under the terms of our Amended Credit Agreement.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Interest and Fees</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">.&#160;&#160;Under the terms of the Amended Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a)&#160;LIBOR multiplied by the Statutory Reserve Rate (as defined in the Amended Credit Agreement), with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (&#8220;LIBOR-based&#8221;), or (b)&#160;CB Floating Rate, which is the Lender's Prime Rate less the Applicable Margin; provided, however, that no more than <ix:nonFraction unitRef="loan" contextRef="ib4baf060735c41c993f25e75c95f4af1_I20190331" decimals="INF" format="ixt-sec:numwordsen" name="ngs:LineOfCreditFacilityReferenceRateNumberOfAllowableBorrowingsOutstanding" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMTg0Mw_b58b3142-17a8-4fd2-95f4-b61064bd4e88">three</ix:nonFraction> LIBOR-based borrowings under the agreement may be outstanding at any one time.&#160;For purposes of the LIBOR-based interest rate, the Applicable Margin is <ix:nonFraction unitRef="number" contextRef="ic828703afeab455a8b29bea368d97a95_D20190101-20190331" decimals="INF" name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMTk5Nw_a980c0a4-1247-4b32-b326-7979b7981cf8">1.50</ix:nonFraction>%. For purposes of the CB Floating Rate, the Applicable Margin is <ix:nonFraction unitRef="number" contextRef="i3816fe2f3bff4d828faa4535510fe590_D20190101-20190331" decimals="INF" name="us-gaap:DebtInstrumentBasisSpreadOnVariableRate1" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMjA2NA_6efda778-d8bb-47d2-9fdd-5a206884bdf3">1.50</ix:nonFraction>%. For the three month period ended March 31, 2019, our weighted average interest rate was <ix:nonFraction unitRef="number" contextRef="ibec0ad6c78a448998623071d9687e73d_D20190101-20190331" decimals="4" name="us-gaap:LineOfCreditFacilityInterestRateDuringPeriod" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMjE0MQ_ec5b6dc5-0f3c-40a4-b668-4efbc2fbbda0">3.75</ix:nonFraction>%.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Maturity</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The maturity date of the Amended Credit Agreement is December&#160;31, 2020, at which time all amounts borrowed under the agreement will be due and outstanding letters of credit must be cash collateralized. The agreement may be terminated early upon our request or the occurrence of an event of default.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div></ix:continuation><div style="text-align:justify;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">11</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="ie63ff1d9ebb14b309b4abcb3cc0db1fc"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Security</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The obligations under the Amended Credit Agreement are secured by a first priority lien on all of our inventory and accounts and leases receivables, along with a first priority lien on a variable number of our leased compressor equipment the book value of which must be maintained at a minimum of <ix:nonFraction unitRef="number" contextRef="i24398b02f5434668847d285d8f31512b_D20190101-20190331" decimals="INF" name="ngs:LineofCreditFacilityCommitmentCoverageRatio" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfMzIzNw_6f39394a-e358-400a-80bc-f6343c0a3bf8">2.00</ix:nonFraction> to 1.00 commitment coverage ratio (such ratio being equal to (i) the amount of the borrowing base as of such date to (ii) the amount of the commitment as of such date).</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Covenants.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Amended Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we also have certain financial covenants that require us to maintain on a consolidated basis a leverage ratio less than or equal to <ix:nonFraction unitRef="number" contextRef="i3511ab180c934c9e827e47206dd720ef_D20190101-20190331" decimals="INF" name="ngs:LineofCreditFacilityLeverageRatio" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNDA0MQ_0d15138e-81db-4e1a-abc4-cafc4df79ef5">2.50</ix:nonFraction> to 1.00 as of the last day of each fiscal quarter.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Events of Default and Acceleration.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Amended Credit Agreement contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" format="ixt:numdotdecimal" name="ngs:LineOfCreditFacilityDefaultTriggerCertainDefaultsOfOtherCompanyIndebtednessAmount" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNDU2NA_2ae72548-9246-431b-bd58-6fc363546668">50,000</ix:nonFraction>; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="INF" format="ixt:numdotdecimal" name="ngs:LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNDY1Nw_bf8aed20-8708-40f7-95e7-65b3b322c4fb">150,000</ix:nonFraction>; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility.  Obligations under the Amended Credit Agreement may be accelerated upon the occurrence of an event of default.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019, we were in compliance with all covenants in our Amended Credit Agreement.&#160;&#160;A default under our Credit Agreement could trigger the acceleration of our bank debt so that it is immediately due and payable.&#160;&#160;Such default would likely limit our ability to access other credit. At March 31, 2019 and December 31, 2018, our outstanding balance on the line of credit was $<ix:nonFraction unitRef="usd" contextRef="i5e1677f52dbc41738ef4e5250b18c357_I20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LineOfCredit" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNTI2OQ_5a6d19b7-1548-4b3b-8de7-2a3e08d408f9"><ix:nonFraction unitRef="usd" contextRef="i3981542d3c2a4d3ab502af6738d5782b_I20181231" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LineOfCredit" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNTI2OQ_9119adfe-2c61-4d9b-9add-967f61212449">417,000</ix:nonFraction></ix:nonFraction>.</span></div></ix:continuation><div id="i_0_626"></div><div><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">(6) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:LesseeOperatingLeasesTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyNzg_8871e310-efe2-4ef6-8660-56cdbadfbc1e" continuedAt="i77e63a4047614901a911951dc0363d34" escape="true">Leases</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="i77e63a4047614901a911951dc0363d34" continuedAt="icddc32169dab4b97a673e2c0d7c2cb02"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company adopted the new lease standard on January 1, 2019 using the modified retrospective transition method. Prior periods were not retrospectively adjusted and continue to be reported under the accounting standards in effect for those periods. The Company elected the package of practical expedients permitted under the transition guidance within the new lease standard, which among other things, allowed the company to continue to account for existing leases based on the historical lease classification. The Company also elected the practical expedients to exclude right-of-use ("ROU") assets and lease liabilities for leases with an initial term of 12 months or less from the balance sheet, and to combine lease and non-lease components for property leases, which primarily relate to ancillary expenses such as common area maintenance charges and management fees.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company determines if an arrangement is a lease at inception by assessing whether it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company&#8217;s leases are primarily related to property leases for its field offices. The Company's leases have remaining lease terms of one to 10 years. Renewal and termination options are included in the lease term when it is reasonably certain that the Company will exercise the option.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company's lease agreements do not contain any contingent rental payments, material residual guarantees or material restrictive covenants.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">ROU assets and lease liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. As substantially all of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate to determine the present value of lease payments. Based on the present value of lease payments for the Company's existing leases, the Company recorded net lease assets and lease liabilities of approximately $<ix:nonFraction unitRef="usd" contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseLiability" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwNjE_31c9cce6-2b92-4976-8245-8c2ab710fa80"><ix:nonFraction unitRef="usd" contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwNjE_7c335cd5-620a-4049-a048-b17c4e06e7ac">451,000</ix:nonFraction></ix:nonFraction>, respectively, upon adoption. The Company had no&#160;finance leases. The new lease standard did not materially impact the Company's consolidated statements of operations and had no impact on the Company's consolidated statements of cash flows.</span></div></ix:continuation><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">12</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="icddc32169dab4b97a673e2c0d7c2cb02" continuedAt="if9eea38757444a09a8ac9f1c64a41d11"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="ngs:AssetsAndLiabilitiesLesseeTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyNzk_35e31cf3-8fb5-498f-a601-f9842ceffce1" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The impact of the new lease standard on the March 31, 2019 consolidated balance sheet was as follows:   </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:38.528634%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.955947%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.515419%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Classification on the Condensed Consolidated Balance Sheet</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands, except years)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating lease assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets-operating leases</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseRightOfUseAsset" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzItMS0xLTEtMjQ2Ng_7ff6259e-f016-49ab-a2e4-0457f3540822">541</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiabilityCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzQtMS0xLTEtMjQ2OA_111537c3-2d60-4ad2-9f60-3e3ba91759c8">148</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Noncurrent lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long-term operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiabilityNoncurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzUtMS0xLTEtMjQ3MA_51b57a64-2806-48d2-a2a2-d4bce3ee7014">393</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease liabilities, net</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzYtMS0xLTEtMjQ3Mg_44119bc2-ce04-4fa3-a236-bb15d7cf9c3a">541</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average remaining lease term in years</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonNumeric contextRef="i5459641122324d2a92efb9de8b599533_I20190331" format="ixt-sec:duryear" name="us-gaap:OperatingLeaseWeightedAverageRemainingLeaseTerm1" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzgtMS0xLTEtMTcxNg_2d0a30dc-50dd-4b28-9e64-21e134195fc5">3.1</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Implicit Rate</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="number" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="3" name="us-gaap:OperatingLeaseWeightedAverageDiscountRatePercent" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTowNzVlMDU4YjNhOWM0ZjZlYTU3NGExYzJlYmRmOTM5NS90YWJsZXJhbmdlOjA3NWUwNThiM2E5YzRmNmVhNTc0YTFjMmViZGY5Mzk1XzktMS0xLTEtMjQ3Ng_e4781379-ec92-41bb-a550-bf9f00123df2">3.8</ix:nonFraction>&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr></table></div></ix:nonNumeric><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Operating lease costs are recognized on a straight-line basis over the lease term. Total operating lease costs for the three months ended March 31, 2019 was approximately&#160;$<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:LeaseCost" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwMTE_6e14652c-4461-4c71-9f86-a05eca8c75c4">193,000</ix:nonFraction>, which included approximately $<ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:ShortTermLeaseCost" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwNTI_23943a06-0275-4341-b89e-18e8cdb4a6de">146,000</ix:nonFraction>&#160;related to short-term lease costs.</span></div><div style="text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:LeaseCostTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTE1MzE_c1c6d2dd-359f-440f-b93f-f02cedf09a53" escape="true"><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:73.438596%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:22.561404%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Cash paid for amounts included in the measurement of lease liabilities </span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="padding-left:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating lease cost</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(1)</sup></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:OperatingLeasePayments" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTozZWQwMWY1Yzc1NDY0YjlmYTRiN2JhMGQyNWViNDE3ZS90YWJsZXJhbmdlOjNlZDAxZjVjNzU0NjRiOWZhNGI3YmEwZDI1ZWI0MTdlXzMtMS0xLTEtMjQ4Nw_3d4958e5-28d8-4716-98f8-0cfc506c0c55">48</ix:nonFraction>&#160;</span></td></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">(1) Lease costs are classified on the condensed&#160;consolidated&#160;statements of income in cost of sales, cost of compressors and selling, general and administrative expenses.</span></div></ix:nonNumeric><div style="text-align:justify;"><span><br/></span></div><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyODE_24b0f12f-3ee1-4677-847c-743acf6a71e4" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The following table shows the future maturities of lease liabilities:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:70.953216%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:24.315789%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Years Ending December 31,</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Lease Liabilities</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019 (excluding the three months ended March 31, 2019)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzItMi0xLTEtMjQ5MQ_5414a3bf-2815-4212-8caa-501b5dc23662">134</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzMtMi0xLTEtMjQ5MQ_4118f9a7-2596-4582-818c-8339a0acd170">116</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzQtMi0xLTEtMjQ5Mg_5c04f105-06d4-47d8-a6a2-615706022896">95</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFour" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzUtMi0xLTEtMjQ5Mw_c1e36aa3-a818-4c37-a790-72e070eccba8">43</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearFive" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzYtMi0xLTEtMjQ5NA_7033c4b4-3241-4d98-8ca8-72e005be45c0">35</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzctMi0xLTEtMjQ5NQ_449db3c0-78d1-4542-a97c-e7957a4f88b3">190</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease payments</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityPaymentsDue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzgtMi0xLTEtMjQ5Ng_34c90a63-02a8-4ae9-a21b-d3913088fc58">613</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Imputed interest</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzktMi0xLTEtMjQ5Nw_812fefde-960e-46bb-bbeb-04fd84095588">72</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-3" name="us-gaap:OperatingLeaseLiability" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzEwLTItMS0xLTI0OTg_429c8d2f-9ae1-4645-9ffb-41c4c90930b5">541</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">13</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><ix:continuation id="if9eea38757444a09a8ac9f1c64a41d11"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyODI_e0a34de0-4d08-41bd-bbba-0d4543dafde2" escape="true"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As previously disclosed&#160;on Form 10-K and under the previous lease standard (Topic 840), future minimum obligations under lease commitments in effect at December 31, 2018 as follows:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:72.853801%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:23.146199%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating Leases</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzItMS0xLTEtMjUwMQ_ecb0671b-aa62-49c7-88a6-dc80dfefc4a0">298</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueInTwoYears" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzMtMS0xLTEtMjUwMQ_0b8871de-d60c-4824-808b-e428ca959eef">118</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueInThreeYears" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzQtMS0xLTEtMjUwMg_f32a9799-940b-4717-9782-491d359f75fb">97</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFourYears" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzUtMS0xLTEtMjUwMw_b823e2bb-9db9-46f3-880f-c0619c428bae">44</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueInFiveYears" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzYtMS0xLTEtMjUwNA_62eef84f-8b7b-4c3e-bfff-f7fd3156345e">35</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDueThereafter" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzctMS0xLTEtMjUwNg_f7dadbed-6481-47b0-a96c-d287083bccae">15</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i97abef86139a4e26bd9333f36e656608_I20181231" decimals="-3" name="us-gaap:OperatingLeasesFutureMinimumPaymentsDue" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTphYmJhNWU2NGQ2NTU0OWVmOGFhODI1OWU0ZDkzNjBiNy90YWJsZXJhbmdlOmFiYmE1ZTY0ZDY1NTQ5ZWY4YWE4MjU5ZTRkOTM2MGI3XzgtMS0xLTEtMjUwNg_60b5882b-0fe3-4125-ac69-b2f4209297f6">607</ix:nonFraction>&#160;</span></td></tr></table></div></ix:nonNumeric></ix:continuation><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div id="i_0_67"></div><div><span><br/></span></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">(7) <ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:EarningsPerShareTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfODU4_ac465ef7-110d-454d-955b-bcf273f3393a" continuedAt="ie36272fd5514428ab8ac103266aed314" escape="true">Earnings per Share</ix:nonNumeric></span></div><div><span><br/></span></div><ix:continuation id="ie36272fd5514428ab8ac103266aed314"><ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfODYw_f6348a6f-fec9-4a1c-9886-745c19dd2e65" escape="true"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">(in thousands, except per share data)</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">:</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:70.660819%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:11.304094%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.384795%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:11.450292%;"></td><td style="width:1.0%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Three months ended</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Numerator:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Net income</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfNC0xLTEtMS0w_57d589cd-70c9-4e81-b926-2fefa31e8783">357</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:NetIncomeLoss" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfNC0zLTEtMS0w_1ea518ce-cc35-4a3a-97bd-406588d2315d">225</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for basic net income per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfNi0xLTEtMS0w_1266cb3a-1fbe-42ed-b8e0-5cfacd000c59">13,064</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfNi0zLTEtMS0w_1241d811-c243-4dac-9b8a-29f67c9f8c68">12,920</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for diluted net income per share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfOC0xLTEtMS0w_1266cb3a-1fbe-42ed-b8e0-5cfacd000c59">13,064</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfSharesOutstandingBasic" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfOC0zLTEtMS0w_1241d811-c243-4dac-9b8a-29f67c9f8c68">12,920</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Dilutive effect of stock options and restricted stock</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfOS0xLTEtMS0w_4dbd57c2-0169-44cc-b2ca-b2ebe579ce26">204</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" name="us-gaap:IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfOS0zLTEtMS0w_7f7b2fc7-71fa-467e-9722-19cc40ac124d">249</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted weighted average shares</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTAtMS0xLTEtMA_dcb4fb46-be54-476d-8944-05903c299ab6">13,268</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="shares" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTAtMy0xLTEtMA_e3ccfac2-1544-4e6f-84c7-6ce0f45a2625">13,169</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Earnings per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Basic</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:EarningsPerShareBasic" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTItMS0xLTEtMA_a1dd7b1c-98e9-4727-beb4-c17ff2c58fef">0.03</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="2" name="us-gaap:EarningsPerShareBasic" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTItMy0xLTEtMA_a20b61b7-2b0c-4a25-a99f-a012eb6c14c9">0.02</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="2" name="us-gaap:EarningsPerShareDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTMtMS0xLTEtMA_90095df4-baf4-4e65-8ca9-c2393f85f16b">0.03</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usdPerShare" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="2" name="us-gaap:EarningsPerShareDiluted" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RhYmxlOjBiNjRlOTQyNTQ4ZTRmM2JhN2M2YTExZTE2OTQzNGNhL3RhYmxlcmFuZ2U6MGI2NGU5NDI1NDhlNGYzYmE3YzZhMTFlMTY5NDM0Y2FfMTMtMy0xLTEtMA_a6e4c7f5-7a3b-4524-b434-2006d39c27e9">0.02</ix:nonFraction>&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr></table></div></ix:nonNumeric><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:18pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In the three months ended March 31, 2019, options to purchase <ix:nonFraction unitRef="shares" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="INF" format="ixt:numdotdecimal" name="us-gaap:AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfMjQy_725f5705-8cb9-4927-a6f0-fc42c235a4fd">174,834</ix:nonFraction> shares of common stock with exercise prices ranging from $<ix:nonFraction unitRef="usdPerShare" contextRef="i097a441f72f0409e83bdadfcb0a8a337_D20190101-20190331" decimals="INF" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfMzAy_b31ad5cd-e680-4b41-8ce8-6143fd0db398">18.75</ix:nonFraction> to $<ix:nonFraction unitRef="usdPerShare" contextRef="i097a441f72f0409e83bdadfcb0a8a337_D20190101-20190331" decimals="INF" name="us-gaap:ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" scale="0" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfMzA4_485e62f9-1f01-4997-b426-ba226b276761">33.36</ix:nonFraction> were not included in the 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style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"></td><td style="width:44.617647%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:8.000000%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:6.970588%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:9.470588%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:8.000000%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.535294%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:8.000000%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2019 (in thousands):</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Service &amp; Maintenance</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i7abb2f6daef24985b610c35d609b0c35_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMi0zLTEtMS0w_4e619c1a-6a7e-47d4-b120-eefb7bacf150">4,125</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMi01LTEtMS0w_e46ca58c-03f5-478b-9e38-39a29551179b">479</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3aa0fd6b28a647e086b8fb8e04fcd946_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMi05LTEtMS0w_abb1a5cd-6711-42a1-a605-3aca5a4ede01">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMi0xMS0xLTEtMA_3d17b95d-7f8e-4314-83ea-1f8366c9d048">17,991</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ia255bc9ff1374e58a67935171147c9d7_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMy0xLTEtMS0w_4fb17157-f635-4c07-94a6-62c428f2eaaa">5,885</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i7abb2f6daef24985b610c35d609b0c35_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMy0zLTEtMS0w_a9f35f6e-e09f-4110-97e2-8374a3f165c2">3,699</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMy01LTEtMS0w_a860a117-f197-4001-b68f-b2d14554a640">147</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3aa0fd6b28a647e086b8fb8e04fcd946_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMy05LTEtMS0w_7f09e98e-852f-4886-8b8f-7dec37750eaa">8,051</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfMy0xMS0xLTEtMA_d5ab93a0-3a4e-42fc-94f0-65d5a02e5451">17,782</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total other income, net</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ia255bc9ff1374e58a67935171147c9d7_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNC0xLTEtMS0w_e8ff899f-569a-4084-ae99-ffe8fb28412b">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i7abb2f6daef24985b610c35d609b0c35_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNC0zLTEtMS0w_c475ab97-377b-436f-9642-526f5ef05ce9">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNC01LTEtMS0w_1b329585-b4c7-4e63-b9b9-befacb620fe6">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3aa0fd6b28a647e086b8fb8e04fcd946_D20190101-20190331" decimals="-3" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNC05LTEtMS0w_71ed8c94-f936-41af-a93f-ad6a9a85ecd8">301</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNC0xMS0xLTEtMA_dd54893f-29e3-467d-81c7-2cd306e5f3a7">301</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Income before provision for&#160;income taxes</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i7abb2f6daef24985b610c35d609b0c35_D20190101-20190331" decimals="-3" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNS0zLTEtMS0w_7002d465-bdb4-44f3-9edd-c34f2f9081b1">426</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i30ee0b01e4b840fc8733935801f88e8e_D20190101-20190331" decimals="-3" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNS01LTEtMS0w_62b2ab19-d14e-40a3-9f13-6cd473818725">332</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i3aa0fd6b28a647e086b8fb8e04fcd946_D20190101-20190331" decimals="-3" sign="-" format="ixt:numdotdecimal" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNS05LTEtMS0w_d8cfaa4b-8fca-4285-8fc0-f0ee20231fb9">7,750</ix:nonFraction>)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" decimals="-3" name="us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOmYyZjNlMDNiZjZiNzRkN2Y5MTMwYmNjMTZmY2Y5NGI1L3RhYmxlcmFuZ2U6ZjJmM2UwM2JmNmI3NGQ3ZjkxMzBiY2MxNmZjZjk0YjVfNS0xMS0xLTEtMA_3f2a166d-c3ce-44bf-97bd-d54ddc26f050">510</ix:nonFraction>&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"></td><td style="width:44.833579%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:7.720177%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:7.572901%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.371134%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:7.720177%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.536377%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:6.836524%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2018 (in thousands):</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 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0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3633ae8fc6af482485206bbfc65baf85_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMi0xLTEtMS0w_cc7a5c80-1651-41b0-a5e2-6d6c512989b9">11,471</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i6f7b10862896462999caa60a7de94fec_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMi0zLTEtMS0w_7a13143d-452d-4357-8a00-b2d0402a9637">2,998</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ib4f6fa92e223462c82c14959b880eee2_D20180101-20180331" decimals="-3" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMi01LTEtMS0w_454680ee-391f-47b9-b25c-5f4dc35a8624">249</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i272799db5fd4409e9dbd74d85141e57f_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMi05LTEtMS0w_ba27e9bd-5523-42cc-8daf-52ed6ccca85f">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:Revenues" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMi0xMS0xLTEtMA_97f7ba5c-6903-4a77-a1ea-adec6b05af68">14,718</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3633ae8fc6af482485206bbfc65baf85_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMy0xLTEtMS0w_af664960-06ad-42c0-b41e-98205dd1e11d">4,704</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i6f7b10862896462999caa60a7de94fec_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMy0zLTEtMS0w_8b5263a4-ffe9-4838-aefa-40b43d3a6c5f">2,191</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ib4f6fa92e223462c82c14959b880eee2_D20180101-20180331" decimals="-3" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMy01LTEtMS0w_26b64394-6be3-4636-96ac-ab0946ec9887">65</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i272799db5fd4409e9dbd74d85141e57f_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMy05LTEtMS0w_641dcc4e-971a-4e56-a5c7-1e8d268ec953">7,408</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" format="ixt:numdotdecimal" name="us-gaap:CostsAndExpenses" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfMy0xMS0xLTEtMA_e705ebee-f371-4765-9b1c-63f1387e5e12">14,368</ix:nonFraction>&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total other expense, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i3633ae8fc6af482485206bbfc65baf85_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfNC0xLTEtMS0w_f4a6795c-941f-4520-ad51-434ec6f07ec8">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="i6f7b10862896462999caa60a7de94fec_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfNC0zLTEtMS0w_ddf8c2f3-5924-4f54-9ffe-50fff1b777f4">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"><ix:nonFraction unitRef="usd" contextRef="ib4f6fa92e223462c82c14959b880eee2_D20180101-20180331" decimals="-3" format="ixt:zerodash" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfNC01LTEtMS0w_9c472d0c-ddd6-438c-ac06-0e6a02d8742c">&#8212;</ix:nonFraction>&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i272799db5fd4409e9dbd74d85141e57f_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfNC05LTEtMS0w_00fa2c37-2153-4cc5-83f2-423ccfaf344e">76</ix:nonFraction>)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(<ix:nonFraction unitRef="usd" contextRef="i79a8a35de24d4723bd20f1d4e8903179_D20180101-20180331" decimals="-3" sign="-" name="us-gaap:NonoperatingIncomeExpense" scale="3" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RhYmxlOjExOGNiNTFjMDY1NzRkN2ZiOTIwNTM0YWY0OWQ1NTJlL3RhYmxlcmFuZ2U6MTE4Y2I1MWMwNjU3NGQ3ZmI5MjA1MzRhZjQ5ZDU1MmVfNC0xMS0xLTEtMA_9dff2915-cb57-4ac3-ace5-a4eeecee546f">76</ix:nonFraction>)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New 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arising from these actions will not have a material adverse effect on our financial position, results of operations or cash flow.&#160; We are not currently a party to any material legal proceedings, and we are not aware of any threatened material litigation. </ix:continuation></span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">15</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"><ix:continuation id="ie165047d18544c4ea610af163d860cba">The Company also has a remaining contractual obligation related to the construction of a new corporate office of approximately $<ix:nonFraction unitRef="usd" contextRef="i5459641122324d2a92efb9de8b599533_I20190331" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:ContractualObligation" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83OS9mcmFnOjZhMDE2ZWZiNDI5YzQxNDM5NmJiMjgxYjRiZjBkOWFkL3RleHRyZWdpb246NmEwMTZlZmI0MjljNDE0Mzk2YmIyODFiNGJmMGQ5YWRfNjM2_82949504-380f-4638-971c-dc5386ae2dcd">3.7</ix:nonFraction> million, to be financed by cash on hand. Construction of a new office began in late 2017 and is expected to be completed in mid-2019.</ix:continuation></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div id="i_0_635"></div><div><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:115%;">(10)&#160;<ix:nonNumeric contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331" name="us-gaap:RelatedPartyTransactionsDisclosureTextBlock" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MzUvZnJhZzozZWJiNmZhZmIxNGM0ZDQzOGQ0ZTlkMjY0OTQ3NDgwOC90ZXh0cmVnaW9uOjNlYmI2ZmFmYjE0YzRkNDM4ZDRlOWQyNjQ5NDc0ODA4XzU0OTc1NTgxMzk4MjA_c18b051d-7bc9-4685-980f-6889e69ebaf2" continuedAt="i6ab88c35db67450083efd117fa088515" escape="true">Related Party </ix:nonNumeric></span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"><ix:continuation id="i6ab88c35db67450083efd117fa088515">In 2016, we entered into a joint venture partnership, N-G, LLC (&#8216;N-G&#8221;), with Genis Holdings, LLC (&#8220;Genis&#8221;) to explore new technologies for wellhead compression. NGS and Genis both share <ix:nonFraction unitRef="number" contextRef="i6620a0d1ec3b416cbd3e81641b20ffa8_D20160101-20161231" decimals="INF" name="us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MzUvZnJhZzozZWJiNmZhZmIxNGM0ZDQzOGQ0ZTlkMjY0OTQ3NDgwOC90ZXh0cmVnaW9uOjNlYmI2ZmFmYjE0YzRkNDM4ZDRlOWQyNjQ5NDc0ODA4XzEwOTk1MTE2Mjc5ODQ_d0d9a5d5-4e32-4b89-b931-346469d7e502"><ix:nonFraction unitRef="number" contextRef="i11a5b9bc67a44d3380d4b6d6db519753_D20160101-20161231" decimals="INF" name="us-gaap:LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest" scale="-2" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MzUvZnJhZzozZWJiNmZhZmIxNGM0ZDQzOGQ0ZTlkMjY0OTQ3NDgwOC90ZXh0cmVnaW9uOjNlYmI2ZmFmYjE0YzRkNDM4ZDRlOWQyNjQ5NDc0ODA4XzEwOTk1MTE2Mjc5ODQ_d7409ada-2f67-485b-ac1d-46425e073b8d">50</ix:nonFraction></ix:nonFraction>% ownership of N-G. In 2018, we ordered some compressor packages from Genis, totaling $<ix:nonFraction unitRef="usd" contextRef="i906cc76ef3f448a2a2c23ba9ded5e38f_D20180101-20181231" decimals="-5" format="ixt:numdotdecimal" name="us-gaap:RelatedPartyTransactionPurchasesFromRelatedParty" scale="6" id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MzUvZnJhZzozZWJiNmZhZmIxNGM0ZDQzOGQ0ZTlkMjY0OTQ3NDgwOC90ZXh0cmVnaW9uOjNlYmI2ZmFmYjE0YzRkNDM4ZDRlOWQyNjQ5NDc0ODA4XzEwOTk1MTE2MjgwNzE_ffe509cf-a05d-43dd-8875-80bd0e67cd90">1.0</ix:nonFraction>&#160;million. The compressors were completed by March 31, 2019. As of March 31, 2019, we have paid the units in full which has been reclassified from prepaids and is included in rental equipment on the consolidated balance sheet.</ix:continuation> </span></div><div id="i_0_82"></div><div><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">16</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 2.&#160;&#160;&#160;Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">The discussion and analysis of our financial</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">condition and results of operations are based on, and should be read in conjunction with, our condensed, consolidated financial statements and the related notes included elsewhere in this report and&#160;&#160;in our&#160;Annual Report on Form 10-K for the year ended December 31, 2018&#160;filed with the SEC.</span></div><div><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Overview</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We fabricate, manufacture, rent, and sell natural gas compressors and related equipment. Our primary focus is on the rental of natural gas compressors. Our rental contracts generally provide for initial terms of six to 24 months. After the initial term of our rental contracts, many of our customers have continued to rent our compressors on a month-to-month basis. Rental amounts are billed monthly in advance and include maintenance of the rented compressors. As of March 31, 2019, we had 1,364 natural gas compressors totaling 238,566 horsepower rented to 97 customers compared to 1,213 natural gas compressors totaling 183,927 horsepower rented to 84 customers at March 31, 2018. </span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We also fabricate natural gas compressors for sale to our customers, designing compressors to meet unique specifications dictated by well pressures, production characteristics, and particular applications for which compression is sought. Fabrication of compressors involves our purchase of engines, compressors, coolers, and other components, and our assembling of these components on skids for delivery to customer locations. The major components of our compressors packages are acquired through periodic purchase orders placed with third-party suppliers on an &#8220;as needed&#8221; basis, which presently require lead times between three to six months with delivery dates scheduled to coincide with our estimated production schedules. Although we do not have formal continuing supply contracts with any major supplier, we believe we have adequate alternative sources available. In the past, we have not experienced any sudden and dramatic increases in the prices of the major components for our compressors. However, the occurrence of such an event could have a material adverse effect on the results of our operations and financial condition, particularly if we were unable to increase our rental rates and sales prices proportionate to any such component price increases.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We also manufacture a proprietary line of compressor frames, cylinders and parts, known as our CiP (Cylinder-in-Plane) product line. We use finished CiP component products in the fabrication of compressor units for sale or rental by us or sell the finished component products to other compressor fabricators. We also design, fabricate, sell, install, and service flare stacks and related ignition and control devices for onshore and offshore incineration of gas compounds such as hydrogen sulfide, carbon dioxide, natural gas and liquefied petroleum gases. To provide customer support for our compressor and flare sales businesses, we stock varying levels of replacement parts at our Midland, Texas facility and at field service locations. We also provide an exchange and rebuild program for screw compressors and maintain an inventory of new and used compressors to facilitate this business.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We provide service and maintenance to our customers under written maintenance contracts or on an as-required basis in the absence of a service contract. Formal maintenance agreements typically have terms of six months to one year and require payment of a monthly fee.  </span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The oil and natural gas equipment rental and services industry is cyclical in nature. The most critical factor in assessing the outlook for the industry is the worldwide supply and demand for natural gas and crude oil and the corresponding changes in commodity prices. As demand and prices increase, oil and natural gas producers increase their capital expenditures for drilling, development and production activities. Generally, the increased capital expenditures ultimately result in greater revenues and profits for services and equipment companies.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In general, we expect our overall business activity and revenues to track the level of activity in the oil and natural gas industry, with changes in domestic natural gas production and consumption levels and prices affecting our business marginally more than changes in crude oil and condensate production and consumption levels and prices. However, in recent years we have increased our rental and sales in the non-conventional oil shale plays which are more dependent on crude oil prices. With this shift towards oil-associated gas production the demand for overall compression services and products is driven by two general factors; declining reservoir pressure in maturing natural gas producing fields, especially non-conventional production, and an increased focus by producers on artificial lift applications; e.g., production enhancement with compression assisted gas lift. These type of applications have historically been serviced by wellhead size compressors, and continue to be, but there has also been an economic move by our customers towards centralized drilling and production facilities which have increased the market need for larger horsepower compressor packages. We recognized this need over the past two to three years and have been shifting our cash and fabrication resources towards designing, fabricating and renting gas compressor packages that range</span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">17</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> from 400 horsepower up to 1,380 horsepower. While this is a response to market conditions and trends, it also provides us with the opportunity to compete as a full-line compression provider.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We typically experience a decline in demand during periods of low crude oil and natural gas prices. Low crude oil and natural gas prices experienced throughout 2016 continued into mid-2017. In the latter half of 2017, we began to see an increase in oil prices and activity that&#160;continued into 2018. We anticipate a continuation of these increased prices and activity in E&amp;P companies throughout 2019. While the continuation of this increased activity is uncertain and variable period to period, we believe the long-tem trend in our market is favorable. </span></div><div style="text-align:justify;"><span><br/></span></div><div id="i_0_85"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;"> Results of Operations</span></div><div><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Three months ended March&#160;31, 2019, compared to the three months ended March&#160;31, 2018.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The table below shows our revenues and percentage of total revenues of each of our product lines for the three months ended March 31, 2019 and 2018.</span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"></td><td style="width:48.735294%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:11.676471%;"></td><td style="width:1.0%;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:7.705882%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.300000%;"></td><td style="width:0.1%;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:11.676471%;"></td><td style="width:1.0%;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:7.705882%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Revenue Three months ended March 31,</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="15" style="padding-top:2px;padding-bottom:2px;height:12pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Rental</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,387&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">74&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11,471&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">78&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Sales</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,125&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,998&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">20&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Service and Maintenance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">479&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,991&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,718&#160;</span></td><td colspan="3" style="display:none;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Total revenue increased to $18.0 million from $14.7 million, or 22%, for the three months ended March 31, 2019, compared to the same period ended March 31, 2018. The increase is mainly a result of an increase in rental revenue due to a greater number of units and higher horsepower with higher rates being rented.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Rental revenue increased to $13.4 million from $11.5 million for the three months ended March 31, 2019, compared to the same period ended March 31, 2018. We ended the quarter with 2,567 compressor packages in our fleet, up from 2,552 units at March 31, 2018.&#160;The rental fleet had a unit utilization as of March 31, 2019 and 2018, respectively of 53.1% and 47.5% while our horsepower utilization for the same periods, respectively was 58.6% and 48.6%.&#160;The rise in utilization is mainly the result of the rise in demand for our higher horsepower units. In the event that oil and natural gas prices remain steady or continue to increase, we expect to see a continued increase in the utilization of our fleet.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Sales revenue increased to $4.1 million from $3.0 million for the three months ended March 31, 2019 compared to the same period ended March 31, 2018.&#160;This increase is the result of fluctuations in timing of industry activity related to capital projects. We believe this timing is reflective of the typical sales cycle, resulting in fluctuating compressor unit sales to third parties from our Tulsa and Midland operations. </span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our overall operating income decreased&#160;to&#160;$209,000 compared to&#160;$350,000 for the three months ended March 31, 2019 and March 31, 2018, respectively. The lower operating income was largely due to lower gross margins, higher selling, general and administrative and depreciation expenses.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Selling, general, and administrative expense increased to $2.5 million from $2.0 million for the three months ended March 31, 2019, and March 31, 2018, respectively. The increase in selling, general and administrative expenses is due to the timing of stock transactions and an increase in salary and payroll related items.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Depreciation and amortization expense increased slightly to $5.6 million for the three months ended March 31, 2019, from $5.4 million for the period ended March 31, 2018.&#160;&#160;This increase is the result of larger horsepower units being added to the fleet. We added 31 units (approximately 30,000 horsepower) to our fleet over the past 12 months.  Twenty-six of these were 400 horsepower or larger; representing 99% of the horsepower added.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">18</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We had an income tax expense of $153,000&#160;resulting in a effective tax rate of 30.0% for the three months ended March 31, 2019 as compared to&#160;$49,000&#160;resulting in a effective tax rate of 17.9% for the three months ended March 31, 2018. The increase in the provision is due to an&#160;increase in pretax income.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div id="i_0_91"></div><div><span><br/></span></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Liquidity and Capital Resources</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our working capital positions as of March 31, 2019 and December 31, 2018 are set forth below:</span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.707602%;"><tr><td style="width:1.0%;"></td><td style="width:70.873900%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:11.489736%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.533138%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:10.903226%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">December 31,</span></div></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current Assets:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Cash and cash equivalents</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">39,992&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">52,628&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Trade accounts receivable, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,298&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,219&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Inventory</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">35,499&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">30,974&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Prepaid income taxes</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,100&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,148&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Prepaid expenses and other</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,702&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,430&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:30pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total current assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">90,591&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">96,399&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current Liabilities:</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts payable</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,450&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,122&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accrued liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,341&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,743&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">148&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Arial;color:#000000;background-color:rgb(255,255,255, 0.0);"></span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Deferred income</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">133&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">81&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total current liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,072&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:top;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,946&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:30pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total working capital</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">82,519&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">85,453&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For the three months ended&#160;March 31, 2019, we invested $9.1 million in property and equipment. During these three months, we&#8217;ve added $9.5&#160;million in new equipment to our rental fleet, $667,000 in payments related to the construction of our new corporate office and $187,000 in vehicles. Our investment in property and equipment also includes any changes between work in progress related to rental fleet jobs started and completed during the period, this change was a decrease to the property and equipment of $1.2 million. Even though we have idle rental equipment, at times we do not have the specific type of equipment that our customers require, therefore we have to build new equipment to satisfy their needs. &#160;We financed this activity with cash flow from operations and cash on hand.  </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Cash flows</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">At March 31, 2019, we had cash and cash equivalents of  $40.0 million compared to $52.6 million at December 31, 2018.&#160;We&#160;had&#160;negative cash flow from operations of $3.8 million&#160;and&#160;capital expenditures of $9.1 million, during the three months ended&#160;March 31, 2019.&#160;&#160;We had working capital of $82.5 million at March 31, 2019 compared to $85.5 million at December 31, 2018.  On March 31, 2019 and December 31, 2018, we had outstanding debt of $417,000, which is all related to our line of credit. We had negative net cash flow from operating activities of $3.8 million during the first three months of 2019 compared&#160;positive net cash flow of to $5.1 million for the first three months of 2018.&#160;&#160;The negative cash flow from operations of $3.8 million was primarily the result of the net income of $357,000 and the non-cash items of depreciation of $5.6 million, $495,000 related to the expenses associated with stock-based compensation, and a&#160;decrease in cash flows related to working capital and other of $10.3 million.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Strategy</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For the remainder of the fiscal year 2019, our overall plan is to continue monitoring and holding expenses in line with the anticipated level of activity, fabricate rental fleet equipment only in direct response to market requirements, emphasize marketing of our idle gas compressor units and limit bank borrowing in line with market conditions.&#160;&#160;For the remainder of  </span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">19</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> 2019, our forecasted capital expenditures with respect to compression equipment will be directly dependent upon our customers&#8217; compression requirements and are not anticipated to exceed our internally generated cash flows and cash on hand.&#160;&#160;Any required capital will be for additions to our compressor rental fleet and/or addition or replacement of service vehicles.&#160;&#160;We believe that cash flows from operations, our current cash position and our line of credit will be sufficient to satisfy our capital and liquidity requirements for the foreseeable future.&#160;&#160;We may require additional capital to fund any unanticipated expenditures, including any acquisitions of other businesses, although that capital, beyond our line of credit, as discussed below may not be available to us when we need it or on acceptable terms.&#160;</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Bank Borrowings</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">We have a senior secured revolving credit agreement the ("Amended Credit Agreement") with JP Morgan Chase Bank, N.A. (the "Lender") with an aggregate commitment of $30 million, subject to collateral availability. We also have a right to request from the lender, on an uncommitted basis, an increase of up to $20 million on the aggregate commitment (which could potentially increase the commitment amount to $50 million). On August 31, 2017, we amended and renewed the Amended Credit Agreement, extending the maturity date to December 31, 2020. No other material revisions were made to the credit facility. We had $29.5 million borrowing base availability at March 31, 2019 under the terms of our Amended Credit Agreement, and our balance on the line of credit was $417,000. For further information, see Footnote 5 "Credit Facility" on page 10.</span></div><div style="text-indent:45pt;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Contractual Obligations and Commitments</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We have contractual obligations and commitments that affect the results of operations, financial condition and liquidity.&#160;The following table is a summary of our significant cash contractual obligations as of March 31, 2019:</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"></td><td style="width:45.953216%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:6.187135%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:5.894737%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:5.748538%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:6.771930%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.530994%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:4.432749%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:0.384795%;"></td><td style="width:0.1%;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="width:1.0%;"></td><td style="width:6.771930%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="height:24pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:24pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="33" style="padding-top:2px;padding-bottom:2px;height:24pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;">Obligations Due in Period </span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:100%;"> (</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:100%;">in thousands)</span></div></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Cash Contractual Obligations</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">2019&#160;</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(1)</sup></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Line of credit (secured)</span></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">417&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">417&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Interest on line of credit</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(2)</sup></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">30&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Purchase obligations</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(3)</sup></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">322&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">400&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">111&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">833&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Other long-term liabilities</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">52&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">52&#160;</span></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="padding-left:6pt;padding-right:-6pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">335&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">834&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">111&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">52&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td><td colspan="3" style="display:none;"></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,332&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="text-indent:18pt;margin-bottom:3pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(1)&#160;For the nine months remaining in 2019.</span></div><div style="text-indent:18pt;margin-bottom:3pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(2)&#160;Assumes an interest rate of 4.0% and no additional borrowings.</span></div><div style="text-indent:18pt;margin-bottom:3pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(3)    Vendor exclusive purchase agreement related to paint and coatings.</span></div><div style="text-indent:18pt;margin-bottom:3pt;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company also has a contractual obligation related to the construction of a new corporate office of approximately $3.7 million, which we intend to finance by cash on hand. Construction of a new office began in late 2017 and is expected to be completed in mid-2019.</span></div><div style="text-indent:18pt;margin-bottom:3pt;"><span><br/></span></div><div><span><br/></span></div><div id="i_0_94"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Critical Accounting Policies and Practices</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">There have been no changes in the critical accounting policies disclosed in the Company's Form 10-K for the year ended December 31, 2018. </span></div><div><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Recently Issued Accounting Pronouncements</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:12pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For further information, see Footnote 1 "Basis of Presentation and Summary of Significant Accounting Polices" on page 5. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">20</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Off-Balance Sheet Arrangements</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">From time-to-time, we enter into off-balance sheet arrangements and transactions that can give rise to off-balance sheet obligations.&#160;&#160;As of March 31, 2019, the  off-balance sheet arrangements and transactions that we have entered into include operating lease agreements and purchase agreements.&#160;&#160;We do not believe that these arrangements are reasonably likely to materially affect our liquidity, availability of, or requirements for, capital resources.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Special Note Regarding Forward-Looking Statements</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Except for historical information contained herein, the statements in this report are forward-looking and made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.&#160;&#160;Forward-looking statements involve known and unknown risks and uncertainties, which may cause our actual results in future periods to differ materially from forecasted results.&#160;&#160;Those risks include, among other things, the loss of market share through competition or otherwise; the introduction of competing technologies by other companies; a prolonged, substantial reduction in oil and natural gas prices which could cause a decline in the demand for our products and services; and new governmental safety, health and environmental regulations which could require us to make significant capital expenditures.  The forward-looking statements included in this Form 10-Q are only made as of the date of this report, and we undertake no obligation to publicly update such forward-looking statements to reflect subsequent events or circumstances.  A discussion of these and other risk factors is included in our Annual Report on Form 10-K for the year ended December 31, 2018 filed with the SEC.</span></div><div><span><br/></span></div><div id="i_0_97"></div><div style="-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 3.&#160;&#160;&#160;Quantitative and Qualitative Disclosures about Market Risk</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">There have been no changes in the market risks disclosed in the Company's Form 10-K for the year ended December 31, 2018.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div id="i_0_100"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 4.&#160;&#160;Controls and Procedures</span></div><div style="text-align:justify;"><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:115%;">Evaluation of Disclosure Controls and Procedures.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">An evaluation was carried out under the supervision and with the participation of our management, including our President and Chief Executive Officer and our Vice President and Principal Accounting Officer, of the effectiveness of the design and of our &#8220;disclosure controls and procedures&#8221; (as such term is defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934, as amended or, the &#8220;Exchange Act&#8221;) as of the end of the period covered by this report pursuant to Exchange Act Rule 13a-15. Based upon that evaluation, the President and Chief Executive Officer and our Vice President and Principal Accounting Officer have concluded that, as of the end of the period covered by this report, adjustments must be made to the design of our controls in order to maintain an effective control environment with formal accounting policies and controls. The evaluation is a continuation of a review process that started in the fourth quarter of 2018 when we determined that there was a material weakness in our internal controls over financial reporting related to our review of the tax provision. A material weakness is a deficiency, or a combination of control deficiencies, in internal control over financial reporting such that there is a reasonable possibility that a material misstatement of our annual or interim financial statements will not be prevented or detected on a timely basis. </span></div><div><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:115%;">Material Weaknesses in Internal Control over Financial Reporting.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">During the fourth quarter of fiscal year 2018, we identified a material weakness in internal controls over financial reporting related to our accounting and reporting of income tax expense (benefit), the related balance sheet accounts and other comprehensive income. In detail, we did not design and maintain an effective control environment with formal accounting policies and controls to adequately provide sufficient information for the preparation of our tax provision to our third party tax professionals and did not provide an appropriate level or sufficient review of the tax provision. The material weakness created a reasonable possibility that there could be a material misstatement of our annual or interim financial.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">This material weakness resulted in a material misstatement in the provision for income taxes in our combined consolidated financial statement as of and for the years ended December 31, 2017, 2016 and 2015. The misstatements were not</span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">21</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"> material to any individual year. Consolidated financial statements included in Annual Report on Form 10-K issued as of December 31, 2018 reflect the correction of the material misstatement of income tax expense (benefit), the related balance sheet accounts and other comprehensive income. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">We are undergoing ongoing evaluations, enhancements and implementation in our internal significant&#160;over financial reporting, regarding and to address the identified material weakness and significant deficiency. We have taken measures to improve our controls related to the material weakness and significant&#160;deficiency in the first quarter of 2019, but have not completed our review.  Our objective is to complete remediation of our  material weakness and significant&#160;deficiency&#160;by the end of 2019.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">There have been no other changes in our internal control over financial reporting that occurred during our fiscal quarter ended March 31, 2019, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. </span></div><div style="text-indent:27pt;padding-right:3pt;text-align:justify;"><span><br/></span></div><div id="i_0_103"></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">PART II &#8211; OTHER INFORMATION</span></div><div style="text-align:justify;"><span><br/></span></div><div id="i_0_106"></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 1.&#160;&#160;Legal Proceedings</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">From time to time, we are a party to various  legal proceedings in the ordinary course of our business.&#160;&#160;While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from these actions will not have a material adverse effect on our financial position, results of operations or cash flow.&#160; We are not currently a party to any material legal proceedings and we are not aware of any threatened litigation.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div id="i_0_109"></div><div style="text-align:justify;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 1A.&#160;&#160;Risk Factors</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Please refer to and read &#8220;Risk Factors&#8221; in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018 for a discussion of the risks associated with our Company and industry.</span></div><div id="i_0_112"></div><div style="text-align:justify;-sec-extract:summary;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">22</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">Item 6.&#160;&#160; Exhibits</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following exhibits are filed herewith or incorporated herein by reference, as indicated:</span></div><div style="text-align:center;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:95.906433%;"><tr><td style="width:1.0%;"></td><td style="width:8.670732%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:87.329268%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Exhibit No.</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Description</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;" href="http://www.sec.gov/Archives/edgar/data/1084991/000101054904000711/natural10qsbex31093004.txt">3.1</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Articles of Incorporation, as amended (Incorporated by reference to Exhibit 3.1 of the 10-QSB filed and dated November 10, 2004)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499116000073/bylaws.htm">3.2</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Bylaws as amended (Incorporated by reference to Exhibit 3.1 of the Registrant's current report on form 8-K filed with the Securities and Exchange Commission on June 21, 2016.</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:95.906433%;"><tr><td style="width:1.0%;"></td><td style="width:8.670732%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:87.329268%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499118000011/ngs-ex1015leastextension.htm">10.1</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Lease Agreement, dated January 9, 2018, between WNB Tower, LTD and Natural Gas Services Group, Inc. (Incorporated by reference to Exhibit 10.15 of the Registrant&#8217;s&#160;&#160;Form 10-K for the fiscal year ended December 31, 2017 and filed with the Securities and Exchange Commission on March 9, 2018.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499114000028/ex991.htm">10.2</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">2009 Restricted Stock/Unit Plan, as amended (Incorporated by reference to Exhibit 99.1 of the Registrant&#8217;s Current Report on Form 8-K dated June 3, 2014 and filed with the Securities and Exchange Commission on June 6, 2014.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499116000073/a1998stockplanamendedandre.htm">10.3</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stock Option Plan, as amended and restated (Incorporated by reference to Exhibit 10.1 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on June 21, 2016.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499114000047/creditagrmnt.htm">10.4</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Credit Agreement between Natural Gas Services Group, Inc. and JPMorgan Chase Bank, N.A., dated December 10, 2010 (Incorporated by reference to Exhibit 10.1 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on November 24, 2014.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499117000058/fifthamendmentofcreditagre.htm">10.5</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Fifth Amendment of Credit Agreement between Natural Gas Services Group, Inc. and JPMorgan Chase Bank, N.A., dated August 31, 2017 (Incorporated by reference to Exhibit 10.2 of the Registrant's Current report on Form 8-K filed with the Securities and Exchange Commission on September 7, 2017.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499110000035/exhibit10-2.htm">10.6</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Security Agreement between Natural Gas Services Group, Inc. and JPMorgan Chase Bank, N.A., dated December 10, 2010 (Incorporated by reference to Exhibit 10.2 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on December 16, 2011.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499117000058/fourthamendmentofsecuritya.htm">10.7</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Fourth Security Agreement between Natural Gas Services Group, Inc. and JPMorgan Chase Bank, N.A., dated August 31, 2017 (Incorporated by reference to Exhibit 10.1 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on September 7, 2017.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499114000047/promissory.htm">10.8</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Promissory Note in the aggregate amount of $30,000,000 issued to JPMorgan Chase Bank, N.A., dated August 31, 2017, in connection with the revolving credit line under the Credit Agreement with JPMorgan Chase Bank, N.A. (Incorporated by reference to Exhibit 10.3 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on September 7, 2017.)</span></div></td></tr><tr><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:12pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499115000014/exhibit101sctagreement42715.htm">10.9</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Amended and restated Employment Agreement dated April 27, 2015 between Natural Gas Services Group, Inc. and Stephen C. Taylor (Incorporated by reference to Exhibit 10.1 of the Registrant&#8217;s Current Report on Form 8-K filed with the Securities and Exchange Commission on April 29, 2015.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499116000060/deferredcompplan.htm">10.10</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">The Executive Nonqualified Excess Plan Adoption Agreement, referred to as the Nonqualified Deferred Compensation Plan (Incorporated by reference to Exhibit 10.11 of the Registrant's Quarterly report on Form 10-Q filed with the Securities and Exchange Commission on May 6, 2016.)</span></div></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">23</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:95.906433%;"><tr><td style="width:1.0%;"></td><td style="width:8.670732%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:87.329268%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="http://www.sec.gov/Archives/edgar/data/1084991/000108499112000041/a101annualincentivebonuspl.htm">10.11</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Annual Incentive Bonus Plan (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K filed with the Securities and Exchange Commission December 18, 2012.)</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="ngs-033119xex311.htm">*31.1</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="ngs-033119xex312.htm">*31.2</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Certification of Principal Accounting Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="ngs-033119xex321.htm">*32.1</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;"><a style="background-color:rgb(255,255,255, 0.0);color:#0000FF;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;text-decoration: underline;-sec-extract:exhibit;" href="ngs-033119xex322.htm">*32.2</a></span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Certification of Principal Accounting Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.INS</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Instance Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.SCH</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Taxonomy Extension Schema Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.CAL</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Taxonomy Extension Calculation Linkbase Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.DEF</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Taxonomy Extension Definition Linkbase Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.LAB</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Taxonomy Extension Label Linkbase Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">101.PRE</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">XBRL Taxonomy Extension Presentation Linkbase Document</span></div></td></tr><tr><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:7pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">* Filed herewith.</span></div></td></tr></table></div><div style="text-align:center;"><span><br/></span></div><div><span><br/></span></div><div id="i_0_118"></div><div style="text-align:center;-sec-extract:summary;"></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">24</span></div></div></div><hr style="page-break-after:always"></hr><div style="height:45pt;width:100%;"><div><span><br/></span></div></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">SIGNATURES</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.</span></div><div><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">NATURAL GAS SERVICES GROUP, INC.</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.707602%;"><tr><td style="width:1.0%;"></td><td style="width:42.134897%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:3.865103%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:42.134897%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:3.865103%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">/s/ Stephen C. Taylor</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">/s/ G. Larry Lawrence</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stephen C. Taylor</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">G. Larry Lawrence</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">President and Chief Executive Officer</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Vice President and Chief Financial Officer</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principal Executive Officer)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:top;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principal Accounting Officer)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">May&#160;10, 2019</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div style="text-align:center;-sec-extract:summary;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:9pt;line-height:120%;">25</span></div></div></div></body></html>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>ngs-033119xex311.htm
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
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<title>Document</title></head><body><div id="i_0_1"></div><div style="height:45pt;width:100%;"><div><font><br></font></div></div><div style="text-align:right;-sec-extract:summary;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exhibit 31.1</font></div><div><font><br></font></div><div style="text-align:center;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Certifications</font></div><div><font><br></font></div><div style="text-indent:18pt;text-align:justify;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">I, Stephen C. Taylor, certify that&#58;</font></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">1.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">I have reviewed this Quarterly Report on Form 10-Q of Natural Gas Services Group, Inc&#59;</font></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">2.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">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&#59;</font></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">3.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">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&#59;</font></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">4.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">The registrant's other certifying officer(s) 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&#58;</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">a.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:11.07pt;">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&#59;</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">b.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">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&#59;</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">c.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:11.07pt;">Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation&#59; and</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">d.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting&#59; and</font></div><div style="text-indent:-18pt;padding-left:36pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">1.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions)&#58;</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">a.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:11.07pt;">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information&#59; and</font></div><div style="text-indent:-18pt;padding-left:54pt;text-align:justify;margin-top:6pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">b.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:10.5pt;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.</font></div><div style="text-align:justify;margin-top:6pt;"><font><br></font></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:4.461087%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.955947%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.405286%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:39.262849%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.914831%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Dated&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><font style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">May 10, 2019</font></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Natural Gas Services Group, Inc.</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">By&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#47;s&#47; Stephen C. Taylor</font></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stephen C. Taylor,</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">President, CEO and Chairman of the Board of Directors</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principal Executive Officer)</font></div></td><td colspan="3" style="display:none;"></td></tr></table></div><div><font><br></font></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div></body></html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>ngs-033119xex312.htm
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
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<title>Document</title></head><body><div id="i_0_1"></div><div style="height:45pt;width:100%;"><div><font><br></font></div></div><div style="text-align:right;margin-bottom:10pt;-sec-extract:summary;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exhibit 31.2</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Certifications</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">I, G. Larry Lawrence, certify that&#58;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">1.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">I have reviewed this Quarterly Report on Form 10-Q of Natural Gas Services Group, Inc&#59;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">2.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">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&#59;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">3.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">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&#59;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">4.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The registrant's other certifying officer(s) 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&#58;</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(a)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">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&#59;</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(b)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">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&#59;</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(c)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation&#59; and</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(d)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting&#59; and</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">5.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions)&#58;</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(a)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information&#59; and</font></div><div style="text-indent:18pt;text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">(b)</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.</font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:4.461087%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.955947%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.405286%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:39.262849%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.914831%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Dated&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><font style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">May 10, 2019</font></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Natural Gas Services Group, Inc.</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">By&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#47;s&#47; G. Larry Lawrence</font></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">G. Larry Lawrence</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Vice President, Chief Financial Officer</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principal Accounting Officer)</font></div></td><td colspan="3" style="display:none;"></td></tr></table></div><div><font><br></font></div><div style="text-align:center;"><font><br></font></div><div><font><br></font></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div></body></html>
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<TYPE>EX-32.1
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<title>Document</title></head><body><div id="i_0_1"></div><div style="height:45pt;width:100%;"><div><font><br></font></div></div><div style="text-align:right;margin-bottom:10pt;-sec-extract:summary;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exhibit 32.1</font></div><div style="text-align:right;margin-bottom:10pt;"><font><br></font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">CERTIFICATION PURSUANT TO</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">18 U.S.C. &#167;1350,</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">AS ADOPTED PURSUANT TO</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</font></div><div style="text-align:justify;margin-bottom:10pt;"><font><br></font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In connection with the Quarterly Report of Natural Gas Services Group, Inc. (the &#8220;Company&#8221;) on Form 10-Q for the period ended </font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">March 31, 2019</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> as filed with the Securities and Exchange Commission on the date hereof (the &#8220;Report&#8221;), I, Stephen C. Taylor, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. &#167;1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that&#58;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">1.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended&#59; and</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">2.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.</font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:4.461087%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.955947%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.405286%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:39.262849%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.914831%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Dated&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><font style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">May 10, 2019</font></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Natural Gas Services Group, Inc.</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">By&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#47;s&#47; Stephen C. Taylor</font></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stephen C. Taylor,</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">President, CEO and Chairman of the Board of Directors</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principal Executive Officer)</font></div></td><td colspan="3" style="display:none;"></td></tr></table></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. &#167; 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.</font></div><div><font><br></font></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div></body></html>
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<TYPE>EX-32.2
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<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head>
<!-- Document created using Wdesk -->
<!-- Copyright 2019 Workiva -->
<title>Document</title></head><body><div id="i_0_1"></div><div style="height:45pt;width:100%;"><div><font><br></font></div></div><div style="text-align:right;margin-bottom:10pt;-sec-extract:summary;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exhibit 32.2</font></div><div style="text-align:right;margin-bottom:10pt;"><font><br></font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">CERTIFICATION PURSUANT TO</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">18 U.S.C. &#167;1350,</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">AS ADOPTED PURSUANT TO</font></div><div style="text-align:center;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002</font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In connection with the Quarterly Report of Natural Gas Services Group, Inc. (the &#8220;Company&#8221;) on Form 10-Q for the period ended </font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">March 31, 2019</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> as filed with the Securities and Exchange Commission on the date hereof (the &#8220;Report&#8221;), I, G. Larry Lawrence, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. &#167;1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that&#58;</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">1.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended&#59; and</font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">2.</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</font><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.</font></div><div style="margin-bottom:10pt;"><font><br></font></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"></td><td style="width:4.461087%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:27.955947%;"></td><td style="width:1.0%;"></td><td style="width:0.1%;"></td><td style="width:2.405286%;"></td><td style="width:0.1%;"></td><td style="width:1.0%;"></td><td style="width:39.262849%;"></td><td style="width:1.0%;"></td><td style="width:1.0%;"></td><td style="width:15.914831%;"></td><td style="width:1.0%;"></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Dated&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><font style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">May 10, 2019</font></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Natural Gas Services Group, Inc.</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:right;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">By&#58;</font></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#47;s&#47; G. Larry Lawrence</font></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">G. Larry Lawrence,</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="6" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Vice President and Chief Financial Officer</font></div></td><td colspan="3" style="display:none;"></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">(Principle Accounting Officer)</font></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"></td></tr></table></div><div style="text-align:justify;margin-bottom:10pt;"><font><br></font></div><div style="text-align:justify;margin-bottom:10pt;"><font style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. &#167; 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.</font></div><div><font><br></font></div><div style="position:relative;width:100%;height:45pt;width:100%;"><div style="position:absolute;bottom:0;width:100%;"><div><font><br></font></div></div></div></body></html>
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<TYPE>EX-101.LAB
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    <link:label id="lab_srt_RangeMember_4b8d4200-8f8a-4f68-a032-30e5410d3b6a_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Range [Domain]</link:label>
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    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock_f6b75621-54c4-4ceb-92ba-8b9a4641b46d_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue Recognition</link:label>
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    <link:label id="lab_us-gaap_AccountsPayableCurrent_b799ac8b-4f0c-4e45-828c-b979184a214d_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts payable</link:label>
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    <link:label id="lab_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain_30bfafe3-1b09-47dc-aaea-ff03d6cae651_terseLabel_en-US" xlink:label="lab_us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual with Relationship to Entity [Domain]</link:label>
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    <link:label id="lab_dei_LegalEntityAxis_7ad073e0-2fe8-4c01-a828-aa83b64dc620_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:label id="lab_dei_LegalEntityAxis_label_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
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    <link:label id="lab_us-gaap_AccountingPoliciesAbstract_label_en-US" xlink:label="lab_us-gaap_AccountingPoliciesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_45a17bb2-286a-47d8-979d-abb2827d2a7b_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">CASH FLOWS FROM INVESTING ACTIVITIES:</link:label>
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    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_19ddb085-9f86-49f6-994b-6db4c89a0ea9_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total unrecognized compensation expense</link:label>
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    <link:label id="lab_us-gaap_CorporateJointVentureMember_da8cdd5b-73a8-48e4-a941-546f51d85014_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateJointVentureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate Joint Venture</link:label>
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    <link:label id="lab_dei_CurrentFiscalYearEndDate_7ab77410-8b99-41a6-8b16-24d9606e2522_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Fiscal Year End Date</link:label>
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    <link:label id="lab_us-gaap_CostOfPropertyRepairsAndMaintenance_2eb14ab1-4a09-412d-89bf-90953260245a_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfPropertyRepairsAndMaintenance" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of service and maintenance</link:label>
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    <link:label id="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_6b43b639-fcd3-459b-ae03-37600553c04d_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchase of rental equipment and property and equipment</link:label>
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    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</link:label>
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    <link:label id="lab_us-gaap_AccountsReceivableNetCurrentAbstract_1ba07b11-4c7b-4170-b92e-7be03788c18e_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable</link:label>
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    <link:label id="lab_us-gaap_AdditionalPaidInCapitalCommonStock_b7c02543-1e78-42ba-980c-2dff6988c1a0_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalCommonStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional paid-in capital</link:label>
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    <link:label id="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_2fdd2e3a-5aae-41ae-9abb-2565fd1f4df2_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid expenses and other</link:label>
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    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_d3712795-4853-45f2-a3af-c8a15ddbe185_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowance for doubtful accounts</link:label>
    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_77f36722-eebb-424f-a1dd-b8928ae59fe9_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less: Allowance for doubtful accounts</link:label>
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    <link:label id="lab_us-gaap_ProvisionForDoubtfulAccounts_718efc3e-6da3-4d9d-8700-f1fac1c5b2a0_terseLabel_en-US" xlink:label="lab_us-gaap_ProvisionForDoubtfulAccounts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bad debt (recovery) allowance</link:label>
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    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_6b6d2b4d-cc62-4181-8ce4-ab62b589f23a_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid-In Capital</link:label>
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    <link:label id="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_a35f3565-0f33-4f57-8bf8-46f63bbb4bd2_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated depreciation, property and equipment</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty_1a744739-e718-442a-8f1e-8fb9793c92a1_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionPurchasesFromRelatedParty" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases from joint venture</link:label>
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    <link:label id="lab_ngs_OtherPartsRebuildsMember_e7130825-2fff-4a58-aa2e-d44036552ee6_terseLabel_en-US" xlink:label="lab_ngs_OtherPartsRebuildsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other (Parts/Rebuilds) - sales</link:label>
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    <link:label id="lab_us-gaap_InventoryFinishedGoodsNetOfReserves_0a4355b4-8b2f-4ec6-a2f6-95df3d026901_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryFinishedGoodsNetOfReserves" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finished Goods</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_b7638d02-4ec5-4d98-86ed-de840788cb02_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Options outstanding, shares (in shares)</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityTable_22cef9c8-ef1a-4d70-b5f7-449a1f36fcec_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit Facility [Table]</link:label>
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    <link:label id="lab_us-gaap_Goodwill_b56f8ecc-26ac-4297-bbbb-a82f5429c1f5_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_44eba34b-d7f7-4033-8ff7-1f4f8d36649a_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityRevenueRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue recognized</link:label>
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    <link:label id="lab_us-gaap_LesseeLeaseDescriptionTable_3536e0bb-f964-4530-9410-3d3a99a9c51f_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeLeaseDescriptionTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Lease, Description [Table]</link:label>
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    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_7cc58b54-6455-4eff-a491-9894f55a1af5_periodStartLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, shares outstanding, beginning of period (in shares)</link:label>
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    <link:label id="lab_ngs_RentalEquipmentNet_1c75bd2d-8d57-4252-bee4-3d8e31f56c80_terseLabel_en-US" xlink:label="lab_ngs_RentalEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Rental equipment, net of accumulated depreciation of $168,466 and $165,428, respectively</link:label>
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    <link:label id="lab_us-gaap_ChiefExecutiveOfficerMember_292b2345-4502-4986-9fbb-b070789aa3a5_terseLabel_en-US" xlink:label="lab_us-gaap_ChiefExecutiveOfficerMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Chief Executive Officer</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_63e80020-7d4b-4621-b557-6ef6da2eb8c6_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Segment Reporting Information, by Segment [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_d5288b48-12b1-441a-8826-ce0546b5aecd_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding, beginning of period (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_5a15e926-7a8f-45c1-a3ba-cc3f269be2bb_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding, end of period (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_ba4c1888-067b-4844-b34e-f4d663abf387_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due after Year Five</link:label>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Prepaid Expense and Other Assets</link:label>
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    <link:label id="lab_us-gaap_EmployeeStockOptionMember_6cf135fd-68b2-4d4c-a8e9-55eb4e31b209_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Options</link:label>
    <link:label id="lab_us-gaap_EmployeeStockOptionMember_label_en-US" xlink:label="lab_us-gaap_EmployeeStockOptionMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Employee Stock Option [Member]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EmployeeStockOptionMember" xlink:to="lab_us-gaap_EmployeeStockOptionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_089a4e4e-3eed-4f8e-8959-f46403ae95dc_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Effect of Changes from Adoption of ASU</link:label>
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    <link:label id="lab_ngs_ProceedsFromPurchaseCommitmentDiscountNet_3a73d93e-5930-4a9e-9789-09e446cd6183_terseLabel_en-US" xlink:label="lab_ngs_ProceedsFromPurchaseCommitmentDiscountNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments from other long-term liabilities, net</link:label>
    <link:label id="lab_ngs_ProceedsFromPurchaseCommitmentDiscountNet_label_en-US" xlink:label="lab_ngs_ProceedsFromPurchaseCommitmentDiscountNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Purchase Commitment Discount Net</link:label>
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    <link:label id="lab_us-gaap_TaxYear2015Member_33684da6-e0c6-44f1-80da-7a385749c01e_terseLabel_en-US" xlink:label="lab_us-gaap_TaxYear2015Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tax Year 2015</link:label>
    <link:label id="lab_us-gaap_TaxYear2015Member_label_en-US" xlink:label="lab_us-gaap_TaxYear2015Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tax Year 2015 [Member]</link:label>
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    <link:label id="lab_us-gaap_OperatingIncomeLoss_20d5aec1-7c2e-4118-8297-e964eca0485d_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating income</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="lab_us-gaap_OperatingIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_eb9aa732-9f9e-44ca-907d-e93c3a65935d_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Canceled/Forfeited (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiability_6514037a-c973-4c1a-ae8c-1d7437c39802_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease, liability</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiability_d3f83df2-d0c5-4239-b460-c027047e2516_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total lease liabilities, net</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiability_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Liability</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities_a9eb6d36-163c-4b6b-b8a5-81d70dd7d40a_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from insurance claims of property and equipment</link:label>
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    <link:label id="lab_us-gaap_PreferredStockMember_65de2382-6ceb-4bd0-aa2d-04e56a316a8f_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock</link:label>
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    <link:label id="lab_us-gaap_LeaseCost_0db1fe90-28c4-4e31-ab7a-aa6ed5950e24_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease costs</link:label>
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    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_87f2f47b-9051-444c-bb6a-66560d7ff5ab_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained earnings</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_71ddb810-772b-40c8-8777-c3d076411dc7_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less: Imputed interest</link:label>
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    <link:label id="lab_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward_documentation_en-US" xlink:label="lab_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Stock Options, Outstanding [Roll Forward]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward" xlink:to="lab_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_b8484964-d725-4b7e-8cfe-826affe52e66_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Basic (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_fdf967b1-4c91-4d4f-9478-e18468716c7d_verboseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average common shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
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    <link:label id="lab_us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued_6de4c9a0-2d94-4d14-8bbb-ef16b2b4d691_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred compensation arrangement with individual, shares issued (in shares)</link:label>
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    <link:label id="lab_dei_DocumentPeriodEndDate_53c1812b-f456-47d4-bd96-ee8d9d1de0b8_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_fc748635-71dc-4538-b7e6-71eedb10ad5f_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Denominator for basic net income per common share:</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory_2eafd05c-52f6-48bf-972d-be61255d06c6_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Borrowing base, component, % of eligible inventory</link:label>
    <link:label id="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory_label_en-US" xlink:label="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line Of Credit Facility Current Borrowing Capacity Component Percentage Of Eligible General Inventory</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" xlink:href="ngs-20190331.xsd#ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" xlink:to="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_818c099a-5ffe-4f6f-b70a-1a7de8ab6aeb_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2022</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due Year Four</link:label>
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    <link:label id="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_ed69af6b-06ce-498d-9876-8436f759808f_terseLabel_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax penalties and interest accrued</link:label>
    <link:label id="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_label_en-US" xlink:label="lab_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued"/>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_be4f22a4-c71f-4c48-8b24-384642c8d200_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">CASH FLOWS FROM FINANCING ACTIVITIES:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_8755ceb4-fd35-4957-8984-7b56bb3e4eb8_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems" xlink:to="lab_us-gaap_SegmentReportingInformationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_49864928-f6cd-4430-8ca5-9c51bcb702ec_terseLabel_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based compensation expense</link:label>
    <link:label id="lab_us-gaap_AllocatedShareBasedCompensationExpense_label_en-US" xlink:label="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allocated Share-based Compensation Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="lab_us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_RentalMember_63199066-e0e8-4581-a5c6-3787f4613351_terseLabel_en-US" xlink:label="lab_ngs_RentalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Rental</link:label>
    <link:label id="lab_ngs_RentalMember_label_en-US" xlink:label="lab_ngs_RentalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Rental [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_RentalMember" xlink:href="ngs-20190331.xsd#ngs_RentalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_RentalMember" xlink:to="lab_ngs_RentalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_196ad8b6-2e79-412a-9e03-9c1e5c9d6d3c_terseLabel_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revolving Credit Facility</link:label>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_label_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revolving Credit Facility [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevolvingCreditFacilityMember" xlink:to="lab_us-gaap_RevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent_3b2a2877-73db-4de0-868b-2ce42fe77553_terseLabel_en-US" xlink:label="lab_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Participant's maximum compensation deferral percentage</link:label>
    <link:label id="lab_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent_label_en-US" xlink:label="lab_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Compensation Arrangementwith Individual Maximum Annual Contributions Per Employee Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" xlink:href="ngs-20190331.xsd#ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" xlink:to="lab_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_8f141a0e-feb0-4b32-b874-ba75213cd6ea_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Borrowing base amount available</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit Facility, Current Borrowing Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:to="lab_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CorporateNonSegmentMember_9234157b-fa43-44b3-9be1-077d167ae0f5_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate</link:label>
    <link:label id="lab_us-gaap_CorporateNonSegmentMember_label_en-US" xlink:label="lab_us-gaap_CorporateNonSegmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate, Non-Segment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateNonSegmentMember" xlink:to="lab_us-gaap_CorporateNonSegmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTable_9acf88d4-c25b-4d77-8a98-bd8f1dbddca5_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table]</link:label>
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    <link:label id="lab_us-gaap_DirectorMember_58a8eff9-513f-430d-b3c2-47f43803efad_terseLabel_en-US" xlink:label="lab_us-gaap_DirectorMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Directors</link:label>
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    <link:label id="lab_us-gaap_TitleOfIndividualAxis_af1de921-ff6e-489e-b1ba-21198c45f855_terseLabel_en-US" xlink:label="lab_us-gaap_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual [Axis]</link:label>
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    <link:label id="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment_ba9534bf-52f2-4a35-ab35-dee375a1aebb_terseLabel_en-US" xlink:label="lab_us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of rentals, exclusive of depreciation stated separately below</link:label>
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    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_04a2d56c-22fa-487a-88b5-6f29e6662a6a_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercisable</link:label>
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    <link:label id="lab_us-gaap_TaxPeriodAxis_6d45e9e8-f09b-44ed-87cb-0a98a40c13fe_terseLabel_en-US" xlink:label="lab_us-gaap_TaxPeriodAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tax Period [Axis]</link:label>
    <link:label id="lab_us-gaap_TaxPeriodAxis_label_en-US" xlink:label="lab_us-gaap_TaxPeriodAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tax Period [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxPeriodAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TaxPeriodAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TaxPeriodAxis" xlink:to="lab_us-gaap_TaxPeriodAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestPaidNet_ac826066-279e-4136-8357-6cb1bd22e02a_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest paid</link:label>
    <link:label id="lab_us-gaap_InterestPaidNet_label_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Paid, Excluding Capitalized Interest, Operating Activities</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_fd97c936-0111-4d86-a090-1eacdeecb998_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Range of exercise prices, lower limit (in USD per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_616790ad-5353-4c17-948b-f10fb01865bd_verboseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercise price of shares not included in the computation of dilutive income per share, lower limit (in USD per share)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_27b9dbce-79d8-440a-bf5b-43abac450197_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Segment Reporting Information</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_4b04bf45-bda7-4e5b-9ef0-edd898e85e1b_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercise Price Range [Axis]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercise Price Range [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_b3bae83d-9dba-461c-b9b7-6c76de38f599_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_cf548d01-fc03-4cac-9d24-043694851a1d_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
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    <link:label id="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory_f39f5cb3-d40f-4409-a844-e1901f3eb08d_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Borrowing base, component, % of eligible equipment inventory</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory" xlink:to="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_18352e38-96c7-4081-8439-56c4a48861da_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
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    <link:label id="lab_us-gaap_OtherAssetsNoncurrent_870209c8-2780-43b1-8b2d-6468dd8eb385_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other assets</link:label>
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    <link:label id="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_5406e66a-4ebf-43e7-bec4-57b86d9ad05a_terseLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Options outstanding, weighted average remaining contractual life (years)</link:label>
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    <link:label id="lab_us-gaap_PreferredStockSharesIssued_9380cb50-d81a-4148-978b-68aa65c64e64_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock, shares issued (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Issued</link:label>
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    <link:label id="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm_ee9a3c78-c84d-4a3d-955a-13bdc32d890d_terseLabel_en-US" xlink:label="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Remaining lease term</link:label>
    <link:label id="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm_label_en-US" xlink:label="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Remaining Lease Term</link:label>
    <link:label id="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm_documentation_en-US" xlink:label="lab_ngs_LesseeOperatingLeaseRemainingLeaseTerm" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Remaining Lease Term</link:label>
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    <link:label id="lab_ngs_LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount_cbab8d8d-1590-4bde-a182-85b960ec6447_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Default trigger, rendering of certain judgments, amount</link:label>
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    <link:label id="lab_dei_EntityEmergingGrowthCompany_75ba35a6-7bf8-4643-b5ed-2019d5503c21_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
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    <link:label id="lab_us-gaap_RetainedEarningsMember_a4970884-1ebf-41b6-a9ae-09c543f4379b_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings [Member]</link:label>
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    <link:label id="lab_us-gaap_TaxPeriodDomain_3d8ad943-d16d-47f6-a1a3-6312b72a0262_terseLabel_en-US" xlink:label="lab_us-gaap_TaxPeriodDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tax Period [Domain]</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_e930e644-bdc1-4fe0-9191-39d3c056ac3a_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NET CASH USED IN INVESTING ACTIVITIES</link:label>
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    <link:label id="lab_us-gaap_IncomeStatementAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
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    <link:label id="lab_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock_62da4ec8-1d61-4fde-9883-b848a4cf55c4_terseLabel_en-US" xlink:label="lab_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred restricted stock shares (in shares)</link:label>
    <link:label id="lab_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock_label_en-US" xlink:label="lab_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Compensation Arrangementwith Individual Deferred Restricted Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock" xlink:href="ngs-20190331.xsd#ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock"/>
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    <link:label id="lab_ngs_IntangibleAssetsAccumulatedAmortization_c3dcd630-8e86-4da6-96f1-d434d680c3dc_terseLabel_en-US" xlink:label="lab_ngs_IntangibleAssetsAccumulatedAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated amortization, intangibles</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeasesTextBlock_d766fb62-76c9-4bd1-a6c4-08ee0571d4aa_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeasesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeasesTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LesseeOperatingLeasesTextBlock"/>
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    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_f5d2d02c-0b20-47a8-a33e-54a0805b10d3_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercise of common stock options, shares (in shares)</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
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    <link:label id="lab_us-gaap_EarningsPerShareDiluted_c6560349-6e81-49e0-aa11-d0b6114b5f6e_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Diluted (in USD per share)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
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    <link:label id="lab_us-gaap_NonoperatingIncomeExpenseAbstract_28ab2faf-3585-4b3c-bdcb-5a86732be259_terseLabel_en-US" xlink:label="lab_us-gaap_NonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other income (expense):</link:label>
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    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue_7ae9aebf-4cff-4c78-92e9-dc25ca0b5958_periodStartLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unvested, weighted average grant date fair value, beginning of period (in USD per share)</link:label>
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    <link:label id="lab_us-gaap_CostsAndExpenses_9d07065b-402b-4b87-b357-638d5161aaab_totalLabel_en-US" xlink:label="lab_us-gaap_CostsAndExpenses" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total operating costs and expenses</link:label>
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    <link:label id="lab_us-gaap_ContractWithCustomerAssetNetCurrent_42c24a65-4825-4c67-b828-8b6ae73170ad_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable - contracts with customers</link:label>
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    <link:label id="lab_us-gaap_NumberOfOperatingSegments_a1dd2aa6-9f1e-45a1-ba31-e7aea2a9b1be_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of operating segments</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock_fb3ce775-ed9a-4a8e-9d36-29828f252ccd_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Status of Unvested Stock Options</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_645727f3-15e3-440b-9f28-8de253799492_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average interest rate</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_cea41083-f6c5-4428-821b-8112d72ff9f5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain]</link:label>
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    <link:label id="lab_us-gaap_InventoryNet_185488e3-8c53-47df-acc9-e09e3a1fc938_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory</link:label>
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    <link:label id="lab_us-gaap_AssetsCurrent_4191bdac-eccc-41d0-afe1-d8b3a0251000_totalLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current assets</link:label>
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    <link:label id="lab_ngs_NGLLCMember_30df37ba-a310-4bec-8c16-38da2279e382_terseLabel_en-US" xlink:label="lab_ngs_NGLLCMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">N-G, LLC</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_449b932c-7c21-40e5-a166-28ead29f0e74_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Future Maturities of Lease Liabilities</link:label>
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    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
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    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_12c05df8-6a25-4200-8dd4-6b48f61071e2_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrecognized compensation cost related to unvested options</link:label>
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    <link:label id="lab_us-gaap_AssetsNoncurrentAbstract_26a74313-7ae7-4507-8c0c-3c12ca4a5cf6_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Noncurrent Assets:</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_CapitalizedContractCostsPolicyPolicyTextBlock_e9dbe696-7cb8-41d2-b140-26153bc31cab_terseLabel_en-US" xlink:label="lab_ngs_CapitalizedContractCostsPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract Costs</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_14c64f79-2cfe-48a0-b82f-dd34b34903c3_totalLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total lease payments</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Payments, Due</link:label>
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    <link:label id="lab_dei_EntityDomain_f9d67e12-0653-4bc2-9c92-07c935ea2fd0_terseLabel_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity [Domain]</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_0507332e-fa2c-4d43-b843-0b6091d9a19d_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
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    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
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    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_a9f80e85-0131-4298-9618-c1760e3248a1_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2023</link:label>
    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_label_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Leases, Future Minimum Payments, Due in Five Years</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:to="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_1c7f2f44-5032-4661-b090-b35fbfffae10_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_37263ecb-d69e-4efe-937f-313ef4dbd601_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities and stockholders' equity</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
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    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_fd649a5a-c193-4168-81ee-8fade6cd21ef_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_9cc55142-884e-4582-a194-8de60a8371bb_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Summary of Option Activity</link:label>
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    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_2e4ba290-cae1-4a36-9e91-339fffce6a67_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2020</link:label>
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    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_78ef66d7-9928-4faa-ad6d-4cd19d9a3b0b_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trade accounts receivable, net of allowance for doubtful accounts of $299 and $291, respectively</link:label>
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    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_df828f83-8770-4c6f-ba2f-1f86c07f2395_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
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    <link:label id="lab_us-gaap_DebtDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_d54f705f-921d-49d6-b678-c3c905ce2b1e_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
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    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_47c42bd5-dfeb-45f5-a4c8-a1da0fbcfc64_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1432cc79-f9d5-4708-8edf-2ac124ddf3a1_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grants in period (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
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    <link:label id="lab_us-gaap_VariableRateAxis_a8b97dac-099f-4c61-ae85-0b2db2efc941_terseLabel_en-US" xlink:label="lab_us-gaap_VariableRateAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate [Axis]</link:label>
    <link:label id="lab_us-gaap_VariableRateAxis_label_en-US" xlink:label="lab_us-gaap_VariableRateAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableRateAxis" xlink:to="lab_us-gaap_VariableRateAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_fe1e3a13-6584-44f0-b092-b98972c54152_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Inventory</link:label>
    <link:label id="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Inventory, Current [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfInventoryCurrentTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_174821bd-8e51-4946-a682-4f0ad45cb653_terseLabel_en-US" xlink:label="lab_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Remaining Contractual Life (years)</link:label>
    <link:label id="lab_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract_label_en-US" xlink:label="lab_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangements by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:href="ngs-20190331.xsd#ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:to="lab_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_ac14ff53-3fed-48bf-a5b9-4645925dbd6a_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Issuance of restricted stock</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Restricted Stock Award, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AwardTypeAxis_bfcf7fdc-3a62-4408-aeae-4b60a15e5509_terseLabel_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:label id="lab_us-gaap_AwardTypeAxis_label_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="lab_us-gaap_AwardTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity_ecdd9155-cd3f-4075-a33b-a1c527bfb24a_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Potential increase in borrowing capacity</link:label>
    <link:label id="lab_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity_label_en-US" xlink:label="lab_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line Of Credit Facility Potential Increase In Borrowing Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" xlink:href="ngs-20190331.xsd#ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" xlink:to="lab_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_c507ab21-c0f0-4398-a834-526d0a1325c9_terseLabel_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Intangibles, net of accumulated amortization of $1,789 and $1,758, respectively</link:label>
    <link:label id="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill_label_en-US" xlink:label="lab_us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Intangible Assets, Net (Excluding Goodwill)</link:label>
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    <link:label id="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract_b92f6ecb-00a3-4d64-8ca2-0faf08cf1772_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings per common share:</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract"/>
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    <link:label id="lab_ngs_TransferOfPrepaidsToRentalEquipmentAndInventory_caae5f0d-c8d9-40f3-b1a5-8ef696f8fc10_terseLabel_en-US" xlink:label="lab_ngs_TransferOfPrepaidsToRentalEquipmentAndInventory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transfer of prepaids to rental equipment and inventory</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_ngs_TransferOfPrepaidsToRentalEquipmentAndInventory" xlink:href="ngs-20190331.xsd#ngs_TransferOfPrepaidsToRentalEquipmentAndInventory"/>
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_777283ed-7238-43da-b952-ddb3ebb6eadb_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Diluted (in shares)</link:label>
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
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    <link:label id="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_9ba87b5f-c794-4ff2-8fc0-fe2083dc2b34_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total</link:label>
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    <link:label id="lab_srt_ConsolidationItemsAxis_77e42692-9df8-4b2a-be6e-bd46fc005647_terseLabel_en-US" xlink:label="lab_srt_ConsolidationItemsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consolidation Items [Axis]</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment_926bb988-bcb6-4316-8e01-ffae0bd52d5d_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sale of property and equipment</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_09185693-df5a-4231-86c0-e31632c56a51_terseLabel_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued liabilities</link:label>
    <link:label id="lab_us-gaap_AccruedLiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:to="lab_us-gaap_AccruedLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_BillAndHoldArrangementMember_25eaffd8-8039-4d15-ac23-0d87168e85f4_terseLabel_en-US" xlink:label="lab_ngs_BillAndHoldArrangementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bill and Hold Arrangement</link:label>
    <link:label id="lab_ngs_BillAndHoldArrangementMember_label_en-US" xlink:label="lab_ngs_BillAndHoldArrangementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bill And Hold Arrangement [Member]</link:label>
    <link:label id="lab_ngs_BillAndHoldArrangementMember_documentation_en-US" xlink:label="lab_ngs_BillAndHoldArrangementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bill And Hold Arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_BillAndHoldArrangementMember" xlink:href="ngs-20190331.xsd#ngs_BillAndHoldArrangementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_BillAndHoldArrangementMember" xlink:to="lab_ngs_BillAndHoldArrangementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RentalIncomeNonoperating_0bdac480-7382-4e31-9e58-c81e4050a3c0_terseLabel_en-US" xlink:label="lab_us-gaap_RentalIncomeNonoperating" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Add: non-ASC 606 rental revenue</link:label>
    <link:label id="lab_us-gaap_RentalIncomeNonoperating_label_en-US" xlink:label="lab_us-gaap_RentalIncomeNonoperating" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Rental Income, Nonoperating</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RentalIncomeNonoperating" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RentalIncomeNonoperating"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RentalIncomeNonoperating" xlink:to="lab_us-gaap_RentalIncomeNonoperating" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_f2de5c9d-3459-4162-8157-b8f688f29eee_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_99a1497c-d64a-49a1-bac3-293d2f176a7c_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Line Items]</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueLineItems_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems" xlink:to="lab_us-gaap_DisaggregationOfRevenueLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_SalesServiceLineMember_25d092be-9fdc-4483-8700-bc8d0c4cdec4_terseLabel_en-US" xlink:label="lab_ngs_SalesServiceLineMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sales</link:label>
    <link:label id="lab_ngs_SalesServiceLineMember_label_en-US" xlink:label="lab_ngs_SalesServiceLineMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sales Service Line [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_SalesServiceLineMember" xlink:href="ngs-20190331.xsd#ngs_SalesServiceLineMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_SalesServiceLineMember" xlink:to="lab_ngs_SalesServiceLineMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_24f40a66-2541-45b4-9168-47847f9fc286_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award vesting period</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent_e667f2dc-0bd4-4e3e-a6db-42784bc2d8d3_terseLabel_en-US" xlink:label="lab_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable - non-ASC 606</link:label>
    <link:label id="lab_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent_label_en-US" xlink:label="lab_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable Excluding Contracts With Customer Asset Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent" xlink:href="ngs-20190331.xsd#ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent" xlink:to="lab_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductOrServiceAxis_c206065f-90da-4d2c-b28c-0bf0811fe28e_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis" xlink:href="http://xbrl.fasb.org/srt/2018/elts/srt-2018-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis" xlink:to="lab_srt_ProductOrServiceAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_d2cd602a-73d5-442f-970f-03a1d7e2f1f0_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation, Depletion and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:to="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InventoryNoncurrent_ff913305-08a4-43f4-90fc-f1add269326e_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term inventory, net of allowance for obsolescence of $19</link:label>
    <link:label id="lab_us-gaap_InventoryNoncurrent_label_en-US" xlink:label="lab_us-gaap_InventoryNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNoncurrent" xlink:to="lab_us-gaap_InventoryNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TypeOfArrangementAxis_f7aab1ab-715f-4133-b3df-f1df0a55f0d0_terseLabel_en-US" xlink:label="lab_us-gaap_TypeOfArrangementAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type of Arrangement and Non-arrangement Transactions [Axis]</link:label>
    <link:label id="lab_us-gaap_TypeOfArrangementAxis_label_en-US" xlink:label="lab_us-gaap_TypeOfArrangementAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type of Arrangement and Non-arrangement Transactions [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfArrangementAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_TypeOfArrangementAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TypeOfArrangementAxis" xlink:to="lab_us-gaap_TypeOfArrangementAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_CbFloatingRateMember_70d7bd12-3265-44d0-b968-49d172b377c1_terseLabel_en-US" xlink:label="lab_ngs_CbFloatingRateMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">CB Floating Rate</link:label>
    <link:label id="lab_ngs_CbFloatingRateMember_label_en-US" xlink:label="lab_ngs_CbFloatingRateMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cb Floating Rate [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_CbFloatingRateMember" xlink:href="ngs-20190331.xsd#ngs_CbFloatingRateMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_CbFloatingRateMember" xlink:to="lab_ngs_CbFloatingRateMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_ProductSalesMember_f6c265bd-5ca7-42ff-be7f-f2f310a422b8_terseLabel_en-US" xlink:label="lab_ngs_ProductSalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sales</link:label>
    <link:label id="lab_ngs_ProductSalesMember_label_en-US" xlink:label="lab_ngs_ProductSalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product Sales [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_ProductSalesMember" xlink:href="ngs-20190331.xsd#ngs_ProductSalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_ProductSalesMember" xlink:to="lab_ngs_ProductSalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementLineItems_8353ff15-812a-49e4-9cf5-dfc82a4d5e70_terseLabel_en-US" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:label id="lab_us-gaap_StatementLineItems_label_en-US" xlink:label="lab_us-gaap_StatementLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementLineItems" xlink:to="lab_us-gaap_StatementLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LineOfCreditFacilityLineItems_491c2e14-f3ce-40e8-9e4f-d6c1469fdc97_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit Facility [Line Items]</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityLineItems_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit Facility [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems" xlink:to="lab_us-gaap_LineOfCreditFacilityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable_0dd8d9b4-a83e-4776-935c-610f90654931_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Borrowing base, component, % of eligible accounts receivable</link:label>
    <link:label id="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable_label_en-US" xlink:label="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line Of Credit Facility Current Borrowing Capacity Component Percentage Of Eligible Accounts Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" xlink:href="ngs-20190331.xsd#ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" xlink:to="lab_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityRegistrantName_9cc900f4-2408-4d80-a3ff-f4c9d1b20966_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
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    <link:label id="lab_us-gaap_SellingGeneralAndAdministrativeExpense_c3571895-ab2a-4c48-9049-ca6e2cb28afe_terseLabel_en-US" xlink:label="lab_us-gaap_SellingGeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Selling, general and administrative expense</link:label>
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    <link:label id="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares_5f6b4331-c3a4-4e7a-81ca-8323fa1d5568_periodStartLabel_en-US" xlink:label="lab_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unvested, beginning of period (in shares)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TypeOfAdoptionMember" xlink:to="lab_us-gaap_TypeOfAdoptionMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_ed989e18-9531-4cc1-a96c-f75220261ff8_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from External Customers by Products and Services [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from External Customers by Products and Services [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
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    <link:label id="lab_us-gaap_AssetsCurrentAbstract_98dc2d3d-5048-4eec-8358-49f0250b34ad_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Assets:</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Current [Abstract]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="lab_us-gaap_AssetsCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_d784b541-8309-499d-a097-63c8bb738ebb_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:to="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentOtherNet_d4b3d009-31af-46b9-a673-8b0000fae50f_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property and equipment, net of accumulated depreciation of $11,665 and $11,556, respectively</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentOtherNet_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Other, Net</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_InventoryValuationReservesDeductions_c3397a88-a645-49b4-b13c-06acfc38f88f_terseLabel_en-US" xlink:label="lab_ngs_InventoryValuationReservesDeductions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Write-offs of obsolete inventory against allowance</link:label>
    <link:label id="lab_ngs_InventoryValuationReservesDeductions_label_en-US" xlink:label="lab_ngs_InventoryValuationReservesDeductions" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory Valuation Reserves Deductions</link:label>
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    <link:label id="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_1337c79c-92cb-439f-9ab4-4ae17af63ffc_negatedLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Taxes paid related to net shares settlement of equity awards</link:label>
    <link:label id="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_label_en-US" xlink:label="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments Related to Tax Withholding for Share-based Compensation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:to="lab_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InventoryDisclosureTextBlock_be63af27-bc27-4322-a707-05e219afa6c0_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory</link:label>
    <link:label id="lab_us-gaap_InventoryDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_InventoryDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryDisclosureTextBlock" xlink:to="lab_us-gaap_InventoryDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CreditFacilityAxis_a72bf7ef-6924-4694-9ae3-90635fc66107_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:label id="lab_us-gaap_CreditFacilityAxis_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditFacilityAxis" xlink:to="lab_us-gaap_CreditFacilityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_VariableRateDomain_528aba51-3228-455e-9147-aee9b9cfe125_terseLabel_en-US" xlink:label="lab_us-gaap_VariableRateDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate [Domain]</link:label>
    <link:label id="lab_us-gaap_VariableRateDomain_label_en-US" xlink:label="lab_us-gaap_VariableRateDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableRateDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableRateDomain" xlink:to="lab_us-gaap_VariableRateDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_RangeOneMember_900887fa-1c36-492f-9b2f-7e4a6eef7bdf_terseLabel_en-US" xlink:label="lab_ngs_RangeOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">$0.01-15.70</link:label>
    <link:label id="lab_ngs_RangeOneMember_label_en-US" xlink:label="lab_ngs_RangeOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Range One [Member]</link:label>
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    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_0b7d44d6-f9be-442b-8fa6-b1fb3c7e465c_terseLabel_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercise of common stock options</link:label>
    <link:label id="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_label_en-US" xlink:label="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock Issued During Period, Value, Stock Options Exercised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="lab_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Revenues_903dbd23-c75d-4997-a7b5-73fe76dd5adc_terseLabel_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue</link:label>
    <link:label id="lab_us-gaap_Revenues_label_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenues</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Revenues" xlink:to="lab_us-gaap_Revenues" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_1ef2be27-12ea-4900-8929-30f9c594c07c_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other long-term liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Liabilities, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrent" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_af179334-e1e0-466e-ab0e-396506b171a8_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity_9208c096-6e81-4ce0-aff1-978e20daf22a_terseLabel_en-US" xlink:label="lab_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Potential maximum borrowing capacity</link:label>
    <link:label id="lab_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity_label_en-US" xlink:label="lab_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line Of Credit Facility Potential Maximum Borrowing Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity" xlink:href="ngs-20190331.xsd#ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity" xlink:to="lab_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_AccumulatedDepreciationRentalEquipment_e7e40ec3-9b05-4105-adb4-d21bf0306264_terseLabel_en-US" xlink:label="lab_ngs_AccumulatedDepreciationRentalEquipment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated depreciation, rental equipment</link:label>
    <link:label id="lab_ngs_AccumulatedDepreciationRentalEquipment_label_en-US" xlink:label="lab_ngs_AccumulatedDepreciationRentalEquipment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Depreciation Rental Equipment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ngs_AccumulatedDepreciationRentalEquipment" xlink:href="ngs-20190331.xsd#ngs_AccumulatedDepreciationRentalEquipment"/>
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    <link:label id="lab_us-gaap_ProceedsFromStockOptionsExercised_669b5c95-caaf-4e63-a9b3-44b03fd4d168_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from exercise of stock options</link:label>
    <link:label id="lab_us-gaap_ProceedsFromStockOptionsExercised_label_en-US" xlink:label="lab_us-gaap_ProceedsFromStockOptionsExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Stock Options Exercised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromStockOptionsExercised" xlink:to="lab_us-gaap_ProceedsFromStockOptionsExercised" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquity_5f595911-2aa0-4499-a979-a2fa8db7ee74_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total stockholders' equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_52d72cc3-799f-4ee1-99f3-23a73012dee2_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Balance, beginning of period</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_15161a89-195b-4d7d-aad7-c95bd24234fd_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Balance, end of period</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ngs_AntidilutiveEffectMember" xlink:to="lab_ngs_AntidilutiveEffectMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ngs_RangeFourMember_c4d1309c-40e7-428d-95fb-ea7480ad85c7_terseLabel_en-US" xlink:label="lab_ngs_RangeFourMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">$20.49-33.36</link:label>
    <link:label id="lab_ngs_RangeFourMember_label_en-US" xlink:label="lab_ngs_RangeFourMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Range Four [Member]</link:label>
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    <link:label id="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_aecbf43d-0ee5-4b05-ba74-00a41d889cb8_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Contract with Customer, Asset and Liability</link:label>
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    <link:label id="lab_srt_MaximumMember_99272871-0a6d-4c79-a94b-b8dd4e10cd96_terseLabel_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum</link:label>
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<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>10
<FILENAME>ngs-20190331_pre.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
<TEXT>
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All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;These financial statements include all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at March 31, 2019 and the results of our operations for the three months ended March 31, 2019&#160;and 2018 not misleading.&#160;&#160;As permitted by the rules and regulations of the Securities and Exchange Commission (SEC), the accompanying condensed consolidated financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP).&#160;&#160;These financial statements should be read in conjunction&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 on file with the SEC.&#160;&#160;In our opinion, the condensed consolidated financial statements are a fair presentation of the financial position, results of operations, changes in stockholders' equity and cash flows for the periods presented.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2019.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Revenue Recognition Policy&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606") on January, 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below.&#160;&#160;&#160;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company applied ASC 606 using the cumulative effect method. We had no significant changes in our recognition of revenue at adoption and our review of all open revenue from contracts with customers on January 1, 2018 indicated we had no adjustment to be made. If an adjustment had been needed, we would have recognized the cumulative effect of initially applying ASC 606 with an adjustment to the opening balance of equity at January 1, 2018.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Revenue is measured based on a consideration specified in a customer&#x2019;s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).  We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our condensed consolidated income statement. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Nature of Goods and Services&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following is a description of principal activities from which the Company generates its revenue: &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:115%;"&gt;Rental Revenue. &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include a fee for servicing the compressor or flare during the rental contract. Our rental contracts range from six to twenty-four months, with revenue  being recognized over time, in equal payments over the term of the contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter. In accordance ASC 842 &#x2013; Leases, we have applied the practical expedient ASC 842-10-15-42A, which allows the Company to combine lease and non-lease components.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Sales Revenue.&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; The Company generates revenue by the sale of custom/fabricated compressors, flare systems and parts, as well as, exchange/rebuilding customer owned compressors and sale of used rental equipment. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Custom/fabricated compressors and flare systems - The Company designs and fabricates compressors and flares based on the customer&#x2019;s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the customer until the compressor or flare package is complete and shipped, or in accordance with a bill and hold arrangements the customer accepts title and assumes the risk and rewards of ownership. We request some of our  customers to make progressive payments as the product is being built; these payments are recorded as a contract liability on the Deferred Income line on the condensed consolidated balance sheet until control has been transferred. &#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;These contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a standard industry practice and is not considered a performance obligation. &lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:72pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;From time to time, upon the customer&#x2019;s written request, we recognize revenue when manufacturing is complete and the equipment is ready for shipment. At the customer&#x2019;s request, we will bill the customer upon completing all performance obligations, but before shipment. The customer will formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment from our finished goods, such that they are not available to fill other orders. Per the customer&#x2019;s agreement change of control is passed to the customer once the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is shouldered by the customer and there are no exceptions to the customer&#x2019;s commitment to accept and pay for the manufactured equipment. Revenues recognized related to bill and hold arrangements for the three months ended March 31, 2019 was approximately $2.7 million.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Parts&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt; - &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the customer&#x2019;s malfunctioning compressor or rebuild the customer&#x2019;s compressor. Revenue is recognized after control of the replacement compressor has transferred to the customer by physical delivery, delivery and installment or shipment of the compressor.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue from the sale of rental equipment is recognized when the control has passed to the customer, when the customer has taken physical possession or the equipment has been shipped.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:72pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Service and Maintenance Revenue&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after services in the contract are rendered. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific customers can vary. Also, the transaction prices are not subject to variable consideration constraints.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Disaggregation of Revenue&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table shows the Company's revenue disaggregated by product or service type for the three months ended March 31, 2019 and 2018:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:68.467836%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.450292%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:2.239766%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.842105%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:21pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:21pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Three months ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Compressors - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,708&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,829&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Flares - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;435&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;522&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Other (Parts/Rebuilds) - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;982&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;647&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Service and maintenance&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;479&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total revenue from contracts with customers&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,604&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,247&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Add: non-ASC 606 rental revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,387&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11,471&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,718&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Contract Balances&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:108pt;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;As of March 31, 2019 and December 31, 2018, we had the following receivables and deferred income from contracts with customers: &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:18pt;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:61.157895%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.836257%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:2.285380%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:14.520468%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Accounts Receivable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Accounts receivable - contracts with customers&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,484&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,250&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Accounts receivable - non-ASC 606&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,113&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;5,260&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;"&gt;Total Accounts Receivable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;10,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,510&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Less: Allowance for doubtful accounts&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(299)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(291)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;"&gt;Total Accounts Receivable, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;10,298&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,219&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;"&gt;Deferred income&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;133&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;81&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company recognized $15,000 in revenue for the period ended March 31, 2019 that was included in deferred income at the beginning of 2019. For the period ended December 31, 2018, the Company recognized revenue of  $176,000 from amounts related to sales that were included in deferred income at the beginning of&#160;2018.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The changes in the balance of accounts receivable and deferred income were primarily due to normal timing differences between our performance and the customers&#x2019; payments.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Transaction Price Allocated to the Remaining Performance Obligations&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:72pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;As of March 31, 2019, the Company did not have revenue related to performance obligations under ASC 606-10-50-13.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Contract Costs&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:90pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company applies the practical expedient  in ASC 340-40-25-4 and recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that the Company otherwise would have recognized is one year or less. These costs are included in selling, general and administrative expense on our consolidated income statement. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Leases&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:10pt;font-weight:700;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;On January 1, 2019, we adopted ASC 842, Leases ("ASC 842") and all the related amendments&#160;using the modified retrospective method. We recognized the cumulative effect of initially applying the new lease standard and had no adjustments to retained earnings. The comparative information has not been restated and continues to be reported under the lease accounting standard in effect for those periods. We do not expect the adoption of the new lease standard to have a material impact to our net income on an ongoing basis.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The new lease standard requires all leases to be reported on the balance sheet as right-of-use assets and lease obligations. We elected the practical expedients permitted under the transition guidance of the new standard that retained the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. We did not reassess whether any contracts or land easements entered into prior to adoption are leases or contain leases.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:29.481481%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:28.864198%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Adjustments due to ASU 2016-02&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at January 1, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Right of use assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;451&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;451&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current portion of operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;126&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;126&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Long term portion of operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company, as a lessee, applies the practical expedient in ASC 842-10-15-37, and does not separate non-lease components from lease components, therefore, accounting for each separate lease component and its associated non-lease component, as a single lease component. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company, as a lessor, applies the practical expedient in ASC 842-10-15-42A, in leases that contain the same timing and pattern of transfer for lease and non-lease components and are deemed operating leases, the lessor is not required to separate non-lease components from lease components. Therefore, on any lease that meets these qualifications we have chosen to account for each separate lease component and its associated non-lease component, as a single lease component. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company applies the practical expedient in ASC 842-20-25-2, to recognize the lease payments in profit or loss on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred for leases with terms of 12 months or less.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Fair Value of Financial Instruments&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, deferred compensation plan (cash portion) and our line of credit.  Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on &#x201c;Level 1&#x201d; inputs, which consist of quoted prices in active markets for identical assets.  We believe that the recorded values of all of our other financial instruments approximate their fair values because of their nature (variable rate debt)  and relatively short maturity dates or durations.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:174%;"&gt;Income Taxes&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each of the states in which we operate. This process involves us estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheet. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the tax provision in the statement of operations.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax assets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that has a greater than 50 percent likely of being realized upon ultimate settlement. &#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Our policy regarding income tax interest and penalties is to expense those items as other expense.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;During the fourth quarter of 2018, the Company discovered a potential uncertain tax position attributable to the deductibility of certain executive compensation expense for federal income tax purposes aggregating approximately $168,000, $149,000 and&#160;$230,000 for the years ended December 31, 2017, 2016 and 2015, respectively.  As a result, in accordance with ASC Topic 740, during the fourth quarter of 2018, the Company recorded a tax adjustment of $547,000 and accrued penalty and interest expense of $55,000 attributable to the uncertain tax position.  Management of the Company determined that the effect of the potential uncertain tax position on previously reported results of operations for the years ended December 31, 2017 and 2016 was not material.&#160;The Company plans on amending its previously filed federal income tax returns and is in the process of analyzing certain offsetting deductions to reduce uncertain tax position reserve.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Reclassification of Prior Period Balances&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Certain reclassifications have been made to prior period amounts, due to our adoption of ASC 842, to conform to the current-year presentation. These reclassifications had no effect on the financial statements.&lt;/span&gt;&lt;/div&gt;</us-gaap:BasisOfPresentationAndSignificantAccountingPoliciesTextBlock>
    <us-gaap:BasisOfAccountingPolicyPolicyTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTc_c0edf33f-9d97-4ddc-adbc-370230b39517">&lt;div style="text-indent:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;These notes apply to the unaudited condensed consolidated financial statements of Natural Gas Services Group, Inc. a Colorado corporation&#160;(the "Company", &#x201c;NGSG&#x201d;, "Natural Gas Services Group", "we" or "our").&#160;&#160;The accompanying unaudited condensed consolidated financial statements include the accounts of the Company, its subsidiary, NGSG Properties, LLC and the rabbi trust associated with the Company's deferred compensations plan, see Note 4. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;These financial statements include all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at March 31, 2019 and the results of our operations for the three months ended March 31, 2019&#160;and 2018 not misleading.&#160;&#160;As permitted by the rules and regulations of the Securities and Exchange Commission (SEC), the accompanying condensed consolidated financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP).&#160;&#160;These financial statements should be read in conjunction&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 on file with the SEC.&#160;&#160;In our opinion, the condensed consolidated financial statements are a fair presentation of the financial position, results of operations, changes in stockholders' equity and cash flows for the periods presented.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2019.&lt;/span&gt;&lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
    <us-gaap:RevenueFromContractWithCustomerPolicyTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTA_d351cd7a-6d05-4b8a-b553-e9c7d75c0264">&lt;div style="margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Revenue Recognition Policy&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606") on January, 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below.&#160;&#160;&#160;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The Company applied ASC 606 using the cumulative effect method. We had no significant changes in our recognition of revenue at adoption and our review of all open revenue from contracts with customers on January 1, 2018 indicated we had no adjustment to be made. If an adjustment had been needed, we would have recognized the cumulative effect of initially applying ASC 606 with an adjustment to the opening balance of equity at January 1, 2018.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Revenue is measured based on a consideration specified in a customer&#x2019;s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).  We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our condensed consolidated income statement. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Nature of Goods and Services&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following is a description of principal activities from which the Company generates its revenue: &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:115%;"&gt;Rental Revenue. &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include a fee for servicing the compressor or flare during the rental contract. Our rental contracts range from six to twenty-four months, with revenue  being recognized over time, in equal payments over the term of the contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter. In accordance ASC 842 &#x2013; Leases, we have applied the practical expedient ASC 842-10-15-42A, which allows the Company to combine lease and non-lease components.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Sales Revenue.&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; The Company generates revenue by the sale of custom/fabricated compressors, flare systems and parts, as well as, exchange/rebuilding customer owned compressors and sale of used rental equipment. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Custom/fabricated compressors and flare systems - The Company designs and fabricates compressors and flares based on the customer&#x2019;s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the customer until the compressor or flare package is complete and shipped, or in accordance with a bill and hold arrangements the customer accepts title and assumes the risk and rewards of ownership. We request some of our  customers to make progressive payments as the product is being built; these payments are recorded as a contract liability on the Deferred Income line on the condensed consolidated balance sheet until control has been transferred. &#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;These contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a standard industry practice and is not considered a performance obligation. &lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:72pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;From time to time, upon the customer&#x2019;s written request, we recognize revenue when manufacturing is complete and the equipment is ready for shipment. At the customer&#x2019;s request, we will bill the customer upon completing all performance obligations, but before shipment. The customer will formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment from our finished goods, such that they are not available to fill other orders. Per the customer&#x2019;s agreement change of control is passed to the customer once the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is shouldered by the customer and there are no exceptions to the customer&#x2019;s commitment to accept and pay for the manufactured equipment. Revenues recognized related to bill and hold arrangements for the three months ended March 31, 2019 was approximately $2.7 million.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Parts&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt; - &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the customer&#x2019;s malfunctioning compressor or rebuild the customer&#x2019;s compressor. Revenue is recognized after control of the replacement compressor has transferred to the customer by physical delivery, delivery and installment or shipment of the compressor.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue from the sale of rental equipment is recognized when the control has passed to the customer, when the customer has taken physical possession or the equipment has been shipped.&lt;/span&gt;&lt;/div&gt;&lt;div style="padding-left:72pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Service and Maintenance Revenue&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after services in the contract are rendered. &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific customers can vary. Also, the transaction prices are not subject to variable consideration constraints.&lt;/span&gt;&lt;/div&gt;</us-gaap:RevenueFromContractWithCustomerPolicyTextBlock>
    <us-gaap:Revenues
      contextRef="i02103f4ce3954c9490816c0b3f7c130e_D20190101-20190331"
      decimals="-5"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfNjQxMg_366a463f-9576-4556-affc-265b8dead90e"
      unitRef="usd">2700000</us-gaap:Revenues>
    <us-gaap:DisaggregationOfRevenueTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTg_cd16b019-4ee4-4228-9db6-1f79bab89685">&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table shows the Company's revenue disaggregated by product or service type for the three months ended March 31, 2019 and 2018:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:68.467836%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.450292%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:2.239766%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.842105%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:21pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:21pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Three months ended March 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Compressors - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,708&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,829&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Flares - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;435&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;522&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Other (Parts/Rebuilds) - sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;982&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;647&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Service and maintenance&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;479&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total revenue from contracts with customers&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,604&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,247&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Add: non-ASC 606 rental revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,387&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11,471&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,718&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:DisaggregationOfRevenueTableTextBlock>
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    <us-gaap:ContractWithCustomerAssetAndLiabilityTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTE_8178ba8f-43c1-4840-8ba9-b55afbfc5b1a">&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;As of March 31, 2019 and December 31, 2018, we had the following receivables and deferred income from contracts with customers: &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:18pt;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:61.157895%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.836257%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:2.285380%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:14.520468%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Accounts Receivable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Accounts receivable - contracts with customers&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,484&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,250&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Accounts receivable - non-ASC 606&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,113&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;5,260&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;"&gt;Total Accounts Receivable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;10,597&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,510&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Less: Allowance for doubtful accounts&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(299)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(291)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;"&gt;Total Accounts Receivable, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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    <us-gaap:LesseeLeasesPolicyTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfNTQ5NzU1ODE4MjIzMg_c66591e5-6e93-49a6-af87-9e739b67fda2">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Leases&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:10pt;font-weight:700;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;On January 1, 2019, we adopted ASC 842, Leases ("ASC 842") and all the related amendments&#160;using the modified retrospective method. We recognized the cumulative effect of initially applying the new lease standard and had no adjustments to retained earnings. The comparative information has not been restated and continues to be reported under the lease accounting standard in effect for those periods. We do not expect the adoption of the new lease standard to have a material impact to our net income on an ongoing basis.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The new lease standard requires all leases to be reported on the balance sheet as right-of-use assets and lease obligations. We elected the practical expedients permitted under the transition guidance of the new standard that retained the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. We did not reassess whether any contracts or land easements entered into prior to adoption are leases or contain leases.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:29.481481%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:28.864198%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Adjustments due to ASU 2016-02&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at January 1, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Right of use assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;451&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;451&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current portion of operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;126&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;126&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Long term portion of operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company, as a lessee, applies the practical expedient in ASC 842-10-15-37, and does not separate non-lease components from lease components, therefore, accounting for each separate lease component and its associated non-lease component, as a single lease component. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company, as a lessor, applies the practical expedient in ASC 842-10-15-42A, in leases that contain the same timing and pattern of transfer for lease and non-lease components and are deemed operating leases, the lessor is not required to separate non-lease components from lease components. Therefore, on any lease that meets these qualifications we have chosen to account for each separate lease component and its associated non-lease component, as a single lease component. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company applies the practical expedient in ASC 842-20-25-2, to recognize the lease payments in profit or loss on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred for leases with terms of 12 months or less.&lt;/span&gt;&lt;/div&gt;</us-gaap:LesseeLeasesPolicyTextBlock>
    <us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfNTQ5NzU1ODE4MjIzMw_e322701c-efd4-4629-94e2-e2eeecb44c37">&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:29.481481%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:28.864198%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.880247%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.746914%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Adjustments due to ASU 2016-02&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance at January 1, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times 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style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;325&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" 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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzODk_789e58b8-4130-47ab-a371-e7ca1d4a6f01">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Fair Value of Financial Instruments&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, deferred compensation plan (cash portion) and our line of credit.  Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on &#x201c;Level 1&#x201d; inputs, which consist of quoted prices in active markets for identical assets.  We believe that the recorded values of all of our other financial instruments approximate their fair values because of their nature (variable rate debt)  and relatively short maturity dates or durations.&lt;/span&gt;&lt;/div&gt;</us-gaap:FairValueOfFinancialInstrumentsPolicy>
    <us-gaap:IncomeTaxPolicyTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTU_808aa3b2-afe0-47e8-822a-102743d8099e">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:174%;"&gt;Income Taxes&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each of the states in which we operate. This process involves us estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheet. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the tax provision in the statement of operations.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax assets.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that has a greater than 50 percent likely of being realized upon ultimate settlement. &#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Our policy regarding income tax interest and penalties is to expense those items as other expense.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;During the fourth quarter of 2018, the Company discovered a potential uncertain tax position attributable to the deductibility of certain executive compensation expense for federal income tax purposes aggregating approximately $168,000, $149,000 and&#160;$230,000 for the years ended December 31, 2017, 2016 and 2015, respectively.  As a result, in accordance with ASC Topic 740, during the fourth quarter of 2018, the Company recorded a tax adjustment of $547,000 and accrued penalty and interest expense of $55,000 attributable to the uncertain tax position.  Management of the Company determined that the effect of the potential uncertain tax position on previously reported results of operations for the years ended December 31, 2017 and 2016 was not material.&#160;The Company plans on amending its previously filed federal income tax returns and is in the process of analyzing certain offsetting deductions to reduce uncertain tax position reserve.&lt;/span&gt;&lt;/div&gt;</us-gaap:IncomeTaxPolicyTextBlock>
    <us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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      unitRef="usd">168000</us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions>
    <us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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    <us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA2MA_f927148e-4a79-4836-bdb0-de5ed590a5cb"
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    <us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTA0Nw_aa300c63-93db-43e2-9128-0279636d48a8"
      unitRef="usd">547000</us-gaap:UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions>
    <us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTY0OTI2NzQ4NTAzNg_bcc03559-9483-460d-9c88-31de258a1b79"
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    <us-gaap:PriorPeriodReclassificationAdjustmentDescription
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zMS9mcmFnOjQ1YWZiNTBjMTc5MzRlODc5YmZjYTg4ZTc4N2U2ZDAyL3RleHRyZWdpb246NDVhZmI1MGMxNzkzNGU4NzliZmNhODhlNzg3ZTZkMDJfMTUzOTQ_140fbc9e-2bb3-4119-b83e-002fbaeff42f">&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;"&gt;Reclassification of Prior Period Balances&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Certain reclassifications have been made to prior period amounts, due to our adoption of ASC 842, to conform to the current-year presentation. These reclassifications had no effect on the financial statements.&lt;/span&gt;&lt;/div&gt;</us-gaap:PriorPeriodReclassificationAdjustmentDescription>
    <us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5MQ_1fbedb89-210c-493b-b482-ed2272b0182b">Stock-Based Compensation&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Stock Options:&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;A summary of option activity under our 1998 Stock Option Plan  as  of December 31, 2018, and changes during the three months ended March 31, 2019 is presented below.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:45.128130%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Number&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;of&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Stock Options&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Remaining&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Contractual Life (years)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Aggregate&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Intrinsic&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Value&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Outstanding, December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;283,686&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;20.46&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.58&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;434&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-indent:18pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercised&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(56,352)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8.97&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;474&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-indent:18pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Canceled/Forfeited&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(2,000)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;26.66&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Outstanding, March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;225,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.28&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4.18&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;26&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Exercisable, March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;214,901&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.04&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4.00&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;26&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table summarizes information about our stock options outstanding at March 31, 2019:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:38.588235%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.176471%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Range of Exercise Prices&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Options Outstanding&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Options Exercisable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Remaining&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Contractual&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Life (years)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$0.01-15.70&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2.82&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14.89&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14.89&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$15.71-17.81&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;42,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1.32&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17.54&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;42,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17.54&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$17.82-20.48&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;50,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2.09&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;19.43&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;50,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;19.43&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$20.49-33.36&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;124,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;6.08&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;27.36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;113,901&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;27.29&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;225,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4.18&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.28&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;214,901&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.04&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The summary of the status of our unvested stock options as of December 31, 2018 and changes during the three months ended&#160;March 31, 2019 is presented below.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:72.008811%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.628488%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.534214%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.628488%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Unvested stock options:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Grant Date Fair Value Per Share&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Unvested at December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;20,865&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11.93&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Vested&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(10,432)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11.93&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Unvested at March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;10,433&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11.93&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;As of March 31, 2019, there was $103,018 of unrecognized compensation cost related to unvested options.&#160;&#160;Such cost is expected to be recognized over a weighted-average period of one year.&#160;Total compensation expense for stock options was $30,779 and $66,625 for the three months ended&#160;March 31, 2019 and 2018, respectively. &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Restricted Shares/Units:&lt;/span&gt;&lt;/div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;In accordance with the Company's employment agreement with Stephen Taylor, the Company's Chief Executive Officer, the Compensation Committee reviewed his performance in determining the issuance of restricted common stock.  Based on this review which included consideration of the Company's 2018 performance, Mr. Taylor, was awarded 131,674 restricted shares/units on March 29, 2019, which vest over three years, in equal annual installments, beginning March 29, 2020. On March 29, 2019, the Compensation Committee awarded  20,000 restricted shares/units to each of G. Larry Lawrence, our CFO, and James Hazlett, our Vice President of Technical Services. The restricted shares to Messrs.  Lawrence and Hazlett vest over three years, in equal annual installments, beginning March 29, 2020. The restricted common stock awarded to Messrs. Taylor, Lawrence and Hazlett are contingent of the Company's shareholders approval and adoption of the Natural Gas Services Group, Inc. 2019 Equity Incentive Plan at the Annual Shareholder meeting on June 20, 2019.&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:12pt;line-height:115%;"&gt;&#160;&lt;/span&gt; We also awarded and issued 23,136 shares of restricted common stock to the independent members of our Board of Directors as partial payment for 2019 services as directors.  The restricted stock issued to our directors vests over one year, in quarterly installments, beginning March 31, 2020. Total compensation expense related to restricted awards was $463,466 and $361,630 for the three months ended&#160;March 31, 2019 and 2018, respectively.  As of March 31, 2019, there was a total of $2.6 million of unrecognized compensation expense related to these shares/units which is expected to be recognized over the next two years.</us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock>
    <us-gaap:ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5Mg_4eea49df-601a-4bf5-940c-d7d15b4e85b6">&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;A summary of option activity under our 1998 Stock Option Plan  as  of December 31, 2018, and changes during the three months ended March 31, 2019 is presented below.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:45.128130%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.665685%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Number&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;of&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Stock Options&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Remaining&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Contractual Life (years)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Aggregate&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Intrinsic&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Value&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Outstanding, December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;283,686&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;20.46&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.58&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;434&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-indent:18pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercised&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(56,352)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8.97&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" 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style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New 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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF8zNy9mcmFnOmNkOWVhM2U4ZDgwMDRiZjhhMGZjNTY1YmEzNzE3NzMzL3RleHRyZWdpb246Y2Q5ZWEzZThkODAwNGJmOGEwZmM1NjViYTM3MTc3MzNfMTk5NA_f94730d1-cd34-4c0b-b9ed-aa2cdb858307">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table summarizes information about our stock options outstanding at March 31, 2019:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:38.588235%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.176471%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.323529%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Range of Exercise Prices&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Options Outstanding&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Options Exercisable&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Remaining&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Contractual&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Life (years)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Exercise&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Price&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$0.01-15.70&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2.82&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14.89&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14.89&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$15.71-17.81&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;42,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1.32&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17.54&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;42,000&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17.54&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$17.82-20.48&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;50,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2.09&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;19.43&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;50,500&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;19.43&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$20.49-33.36&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;124,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;6.08&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;27.36&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;113,901&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;27.29&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;225,334&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4.18&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.28&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;214,901&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;23.04&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock>
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style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Unvested stock options:&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Shares&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Weighted Average&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Grant Date Fair Value Per Share&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Unvested at December 31, 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#000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11.93&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Vested&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(10,432)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11.93&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span 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style="width:1.0%;"/&gt;&lt;td style="width:16.181818%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.533138%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.155425%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Raw materials - current&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;29,821&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;26,152&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Raw materials - long term, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,997&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,980&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Finished Goods&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,022&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,022&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Work in process&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,656&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;39,496&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;34,954&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Our long-term inventory consists of raw materials that remain viable but that the Company does not expect to sell or use within the year.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;During the three months ended March 31, 2019 and 2018, there were no write-offs of obsolete inventory against the allowance for obsolescence.&lt;/span&gt;&lt;/div&gt;</us-gaap:InventoryDisclosureTextBlock>
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style="width:16.181818%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.533138%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:15.155425%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;December 31, 2018&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;"&gt;(in thousands)&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Raw materials - current&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;29,821&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;26,152&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Raw materials - long term, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,997&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,980&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Finished Goods&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,022&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;1,022&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Work in process&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,656&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,800&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;39,496&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;34,954&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfInventoryCurrentTableTextBlock>
    <us-gaap:InventoryValuationReserves
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      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RleHRyZWdpb246YmZhY2NmNDEyMjk5NDAwYzlmZDliNDZkOGYyMjI1MzRfODE_48fb52f8-f347-498b-b013-d2d3f54c1dbf"
      unitRef="usd">19000</us-gaap:InventoryValuationReserves>
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      contextRef="i5459641122324d2a92efb9de8b599533_I20190331"
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF80My9mcmFnOmJmYWNjZjQxMjI5OTQwMGM5ZmQ5YjQ2ZDhmMjIyNTM0L3RleHRyZWdpb246YmZhY2NmNDEyMjk5NDAwYzlmZDliNDZkOGYyMjI1MzRfODE_984b96a5-2120-410d-9168-480c0084c7b5"
      unitRef="usd">19000</us-gaap:InventoryValuationReserves>
    <ngs:InventoryCurrentRawMaterialsNetofReserves
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      unitRef="usd">29821000</ngs:InventoryCurrentRawMaterialsNetofReserves>
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      unitRef="usd">3997000</ngs:InventoryNoncurrentRawMaterialsNetofReserves>
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      unitRef="usd">1022000</us-gaap:InventoryFinishedGoodsNetOfReserves>
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF81OC9mcmFnOmY2ZTYzOTE4ZjZkNjQ2YTM4M2U3YjlhMjRkOTlhYTEwL3RleHRyZWdpb246ZjZlNjM5MThmNmQ2NDZhMzgzZTdiOWEyNGQ5OWFhMTBfNTI3MQ_dbe4f63a-5c23-4d44-8a29-53c9b17251cb">Credit Facility&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;We have a senior secured revolving credit agreement the ("Amended Credit Agreement") with JP Morgan Chase Bank, N.A (the "Lender") with an aggregate commitment of $30 million, subject to collateral availability. We also have a right to request from the Lender, on an uncommitted basis, an increase of up to $20 million on the aggregate commitment (which could potentially increase the commitment amount to $50 million).  On August 31, 2017, we amended and renewed the Amended Credit Agreement, extending the maturity date to December 31, 2020. No other material revisions were made to the credit facility.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:45pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Borrowing Base&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;. At any time before the maturity of the Amended Credit Agreement, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50%  of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory.&#160;&#160;The Lender may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. We had $29.5 million borrowing base availability at March 31, 2019 under the terms of our Amended Credit Agreement.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Interest and Fees&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;.&#160;&#160;Under the terms of the Amended Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a)&#160;LIBOR multiplied by the Statutory Reserve Rate (as defined in the Amended Credit Agreement), with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (&#x201c;LIBOR-based&#x201d;), or (b)&#160;CB Floating Rate, which is the Lender's Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the agreement may be outstanding at any one time.&#160;For purposes of the LIBOR-based interest rate, the Applicable Margin is 1.50%. For purposes of the CB Floating Rate, the Applicable Margin is 1.50%. For the three month period ended March 31, 2019, our weighted average interest rate was 3.75%.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Maturity&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;. The maturity date of the Amended Credit Agreement is December&#160;31, 2020, at which time all amounts borrowed under the agreement will be due and outstanding letters of credit must be cash collateralized. The agreement may be terminated early upon our request or the occurrence of an event of default.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Security&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;. The obligations under the Amended Credit Agreement are secured by a first priority lien on all of our inventory and accounts and leases receivables, along with a first priority lien on a variable number of our leased compressor equipment the book value of which must be maintained at a minimum of 2.00 to 1.00 commitment coverage ratio (such ratio being equal to (i) the amount of the borrowing base as of such date to (ii) the amount of the commitment as of such date).&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Covenants.&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; The Amended Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we also have certain financial covenants that require us to maintain on a consolidated basis a leverage ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;Events of Default and Acceleration.&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; The Amended Credit Agreement contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility.  Obligations under the Amended Credit Agreement may be accelerated upon the occurrence of an event of default.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;As of March 31, 2019, we were in compliance with all covenants in our Amended Credit Agreement.&#160;&#160;A default under our Credit Agreement could trigger the acceleration of our bank debt so that it is immediately due and payable.&#160;&#160;Such default would likely limit our ability to access other credit. 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The Company also elected the practical expedients to exclude right-of-use ("ROU") assets and lease liabilities for leases with an initial term of 12 months or less from the balance sheet, and to combine lease and non-lease components for property leases, which primarily relate to ancillary expenses such as common area maintenance charges and management fees.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company determines if an arrangement is a lease at inception by assessing whether it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company&#x2019;s leases are primarily related to property leases for its field offices. The Company's leases have remaining lease terms of one to 10 years. Renewal and termination options are included in the lease term when it is reasonably certain that the Company will exercise the option.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The Company's lease agreements do not contain any contingent rental payments, material residual guarantees or material restrictive covenants.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;ROU assets and lease liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. As substantially all of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate to determine the present value of lease payments. Based on the present value of lease payments for the Company's existing leases, the Company recorded net lease assets and lease liabilities of approximately $451,000, respectively, upon adoption. The Company had no&#160;finance leases. The new lease standard did not materially impact the Company's consolidated statements of operations and had no impact on the Company's consolidated statements of cash flows.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The impact of the new lease standard on the March 31, 2019 consolidated balance sheet was as follows:   &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:38.528634%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:27.955947%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:27.515419%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Classification on the Condensed Consolidated Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands, except years)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Operating lease assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Right of use assets-operating leases&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current lease liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;148&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Noncurrent lease liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Long-term operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;393&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total lease liabilities, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average remaining lease term in years&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.1&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Implicit Rate&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.8&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;Operating lease costs are recognized on a straight-line basis over the lease term. Total operating lease costs for the three months ended March 31, 2019 was approximately&#160;$193,000, which included approximately $146,000&#160;related to short-term lease costs.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:73.438596%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:22.561404%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Cash paid for amounts included in the measurement of lease liabilities &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="padding-left:18pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating lease cost&lt;/span&gt;&lt;sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;"&gt;(1)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;48&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;(1) Lease costs are classified on the condensed&#160;consolidated&#160;statements of income in cost of sales, cost of compressors and selling, general and administrative expenses.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The following table shows the future maturities of lease liabilities:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:70.953216%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.530994%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:24.315789%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Years Ending December 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Lease Liabilities&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019 (excluding the three months ended March 31, 2019)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;134&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;116&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;95&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2022&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;43&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2023&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;35&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Thereafter&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;190&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total lease payments&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;613&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Less: Imputed interest&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;72&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;As previously disclosed&#160;on Form 10-K and under the previous lease standard (Topic 840), future minimum obligations under lease commitments in effect at December 31, 2018 as follows:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:72.853801%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:23.146199%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Operating Leases&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;298&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;118&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;97&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2022&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;44&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2023&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;35&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Thereafter&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;15&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;607&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:LesseeOperatingLeasesTextBlock>
    <us-gaap:OperatingLeaseLiability
      contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwNjE_31c9cce6-2b92-4976-8245-8c2ab710fa80"
      unitRef="usd">451000</us-gaap:OperatingLeaseLiability>
    <us-gaap:OperatingLeaseRightOfUseAsset
      contextRef="iddca3fcbc2844ab1828931b34c54ddbb_I20190101"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzE2NDkyNjc0NTQwNjE_7c335cd5-620a-4049-a048-b17c4e06e7ac"
      unitRef="usd">451000</us-gaap:OperatingLeaseRightOfUseAsset>
    <ngs:AssetsAndLiabilitiesLesseeTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyNzk_35e31cf3-8fb5-498f-a601-f9842ceffce1">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The impact of the new lease standard on the March 31, 2019 consolidated balance sheet was as follows:   &lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:38.528634%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:27.955947%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:27.515419%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Classification on the Condensed Consolidated Balance Sheet&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands, except years)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Operating lease assets&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Right of use assets-operating leases&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current lease liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Current operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;148&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Noncurrent lease liabilities&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Long-term operating leases&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;393&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total lease liabilities, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average remaining lease term in years&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.1&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Implicit Rate&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3.8&#160;&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;%&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</ngs:AssetsAndLiabilitiesLesseeTableTextBlock>
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    <us-gaap:LeaseCostTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTE1MzE_c1c6d2dd-359f-440f-b93f-f02cedf09a53">&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:73.438596%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:22.561404%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, 2019&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Cash paid for amounts included in the measurement of lease liabilities &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="padding-left:18pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating lease cost&lt;/span&gt;&lt;sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;"&gt;(1)&lt;/sup&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;48&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;(1) Lease costs are classified on the condensed&#160;consolidated&#160;statements of income in cost of sales, cost of compressors and selling, general and administrative expenses.&lt;/span&gt;&lt;/div&gt;</us-gaap:LeaseCostTableTextBlock>
    <us-gaap:OperatingLeasePayments
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTozZWQwMWY1Yzc1NDY0YjlmYTRiN2JhMGQyNWViNDE3ZS90YWJsZXJhbmdlOjNlZDAxZjVjNzU0NjRiOWZhNGI3YmEwZDI1ZWI0MTdlXzMtMS0xLTEtMjQ4Nw_3d4958e5-28d8-4716-98f8-0cfc506c0c55"
      unitRef="usd">48000</us-gaap:OperatingLeasePayments>
    <us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90ZXh0cmVnaW9uOmZjYjg2MDM0NmU3NTRmOTJhZTM5MGQwNWRlNTZmZjM1XzU0OTc1NTgxNTEyODE_24b0f12f-3ee1-4677-847c-743acf6a71e4">&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;"&gt;The following table shows the future maturities of lease liabilities:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:70.953216%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.530994%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:24.315789%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Years Ending December 31,&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Lease Liabilities&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(in thousands)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019 (excluding the three months ended March 31, 2019)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;134&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2020&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;116&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2021&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;95&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2022&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;43&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2023&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;35&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Thereafter&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;190&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total lease payments&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;613&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Less: Imputed interest&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;72&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-bottom:3pt double #000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-bottom:3pt double #000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;541&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:LesseeOperatingLeaseLiabilityMaturityTableTextBlock>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
      contextRef="i5459641122324d2a92efb9de8b599533_I20190331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzItMi0xLTEtMjQ5MQ_5414a3bf-2815-4212-8caa-501b5dc23662"
      unitRef="usd">134000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
      contextRef="i5459641122324d2a92efb9de8b599533_I20190331"
      decimals="-3"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82MjYvZnJhZzpmY2I4NjAzNDZlNzU0ZjkyYWUzOTBkMDVkZTU2ZmYzNS90YWJsZTo0MjJhYjU2MWU2Yzg0MWM5YWU0NjYxODY5Y2NjYjk0NC90YWJsZXJhbmdlOjQyMmFiNTYxZTZjODQxYzlhZTQ2NjE4NjljY2NiOTQ0XzMtMi0xLTEtMjQ5MQ_4118f9a7-2596-4582-818c-8339a0acd170"
      unitRef="usd">116000</us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearTwo>
    <us-gaap:LesseeOperatingLeaseLiabilityPaymentsDueYearThree
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style="width:1.0%;"/&gt;&lt;td style="width:72.853801%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:23.146199%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Operating Leases&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 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    <us-gaap:EarningsPerShareTextBlock
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfODU4_ac465ef7-110d-454d-955b-bcf273f3393a">Earnings per Share&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;(in thousands, except per share data)&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:70.660819%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.304094%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.384795%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.450292%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Three months ended&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Numerator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Net income&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;357&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;225&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Denominator for basic net income per common share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average common shares outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,064&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;12,920&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Denominator for diluted net income per share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average common shares outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,064&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;12,920&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Dilutive effect of stock options and restricted stock&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;204&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Diluted weighted average shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,268&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Earnings per common share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Basic&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.03&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.02&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Diluted&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.03&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.02&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:18pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;In the three months ended March 31, 2019, options to purchase 174,834 shares of common stock with exercise prices ranging from $18.75 to $33.36 were not included in the computation of diluted income per share, due to their antidilutive effect.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:18pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:18pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;In the three months ended March 31, 2018, options to purchase 83,917 shares of common stock with exercise prices ranging from $28.15 to $33.36 were not included in the computation of diluted income per share, due to their antidilutive effect.&lt;/span&gt;&lt;/div&gt;</us-gaap:EarningsPerShareTextBlock>
    <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF82Ny9mcmFnOmM0NGNmNmQ3NWIxZjQzMjg4ZDBhNGVkZGI2NDNhMjY2L3RleHRyZWdpb246YzQ0Y2Y2ZDc1YjFmNDMyODhkMGE0ZWRkYjY0M2EyNjZfODYw_f6348a6f-fec9-4a1c-9886-745c19dd2e65">&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation &lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"&gt;(in thousands, except per share data)&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;:&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:70.660819%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.304094%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.384795%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:11.450292%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Three months ended&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;March 31, &lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2019&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2018&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Numerator:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Net income&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;357&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;225&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Denominator for basic net income per common share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average common shares outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,064&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;12,920&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Denominator for diluted net income per share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Weighted average common shares outstanding&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,064&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;12,920&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Dilutive effect of stock options and restricted stock&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;204&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Diluted weighted average shares&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,268&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,169&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Earnings per common share:&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Basic&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.03&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.02&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Diluted&lt;/span&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.03&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;0.02&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
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    <us-gaap:WeightedAverageNumberOfSharesOutstandingBasic
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      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RleHRyZWdpb246MzkyY2RhMTM5MzI3NDZjOTgwZjcxOWZjM2E3ODhhNWZfMjQ2MA_d14f159a-090e-4a35-a86c-9eca5f84bf90">Segment Information&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;ASC 280-10-50, &#x201c;Operating Segments", defines the characteristics of an operating segment as: a) being engaged in business activity from which it may earn revenue and incur expenses, b) being reviewed by the Company's chief operating decision maker (CODM) for decisions about resources to be allocated and assess its performance and c) having discrete financial information.&#160;&#160;Although we look at our products to analyze the nature of our revenue, other financial information, such as certain costs and expenses, net income and EBITDA are not captured or analyzed by these categories.&#160;&#160;Our CODM does not&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; make resource allocation decisions or access the performance of the business based on these categories, but rather in the aggregate. Based on this, management believes that it operates in one business segment.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;In their analysis of product lines as potential operating segments, management also considered ASC 280-10-50-11, &#x201c;Aggregation Criteria&#x201d;, which allows for the aggregation of operating segments if the segments have similar economic characteristics and if the segments are similar in each of the following areas: &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the products and services;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the production processes; &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The type or class of customer for their products and services; &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The methods used to distribute their products or provide their services; and&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the regulatory environment, if applicable.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.&lt;/span&gt;&lt;/div&gt;&lt;div style="text-align:center;"&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:44.617647%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:6.970588%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.470588%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;For the three months ended March 31, 2019 (in thousands):&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Rental&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Service &amp;amp; Maintenance&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Corporate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,387&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,125&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;479&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating costs and corporate expenses&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;5,885&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,699&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;147&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,051&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,782&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total other income, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;301&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;301&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Income before provision for&#160;income taxes&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,502&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;426&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;332&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(7,750)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;510&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:44.833579%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.720177%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.572901%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.371134%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.720177%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:6.836524%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;For the three months ended March 31, 2018 (in thousands):&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Rental&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Service &amp;amp; Maintenance&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Corporate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11,471&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,718&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating costs and corporate expenses&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,704&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,191&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;65&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,408&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,368&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total other expense, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(76)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(76)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Income before provision for&#160;&#160;income taxes&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;6,767&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;807&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;184&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(7,484)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;274&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;</us-gaap:SegmentReportingDisclosureTextBlock>
    <us-gaap:SegmentReportingPolicyPolicyTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RleHRyZWdpb246MzkyY2RhMTM5MzI3NDZjOTgwZjcxOWZjM2E3ODhhNWZfMjQ2Mg_a18454fb-a0ee-4208-b93b-1574688779c2">ASC 280-10-50, &#x201c;Operating Segments", defines the characteristics of an operating segment as: a) being engaged in business activity from which it may earn revenue and incur expenses, b) being reviewed by the Company's chief operating decision maker (CODM) for decisions about resources to be allocated and assess its performance and c) having discrete financial information.&#160;&#160;Although we look at our products to analyze the nature of our revenue, other financial information, such as certain costs and expenses, net income and EBITDA are not captured or analyzed by these categories.&#160;&#160;Our CODM does not&lt;div style="text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt; make resource allocation decisions or access the performance of the business based on these categories, but rather in the aggregate. Based on this, management believes that it operates in one business segment.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;In their analysis of product lines as potential operating segments, management also considered ASC 280-10-50-11, &#x201c;Aggregation Criteria&#x201d;, which allows for the aggregation of operating segments if the segments have similar economic characteristics and if the segments are similar in each of the following areas: &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the products and services;&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the production processes; &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The type or class of customer for their products and services; &lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The methods used to distribute their products or provide their services; and&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:-18pt;padding-left:36pt;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#x2022;&lt;/span&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;"&gt;The nature of the regulatory environment, if applicable.&lt;/span&gt;&lt;/div&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;&#160; &lt;/span&gt;&lt;/div&gt;&lt;div style="text-indent:36pt;text-align:justify;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"&gt;We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.&lt;/span&gt;&lt;/div&gt;</us-gaap:SegmentReportingPolicyPolicyTextBlock>
    <us-gaap:NumberOfOperatingSegments
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      decimals="INF"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RleHRyZWdpb246MzkyY2RhMTM5MzI3NDZjOTgwZjcxOWZjM2E3ODhhNWZfODIy_b31c6783-e9f6-44fb-9251-05be0afdcfcc"
      unitRef="segment">1</us-gaap:NumberOfOperatingSegments>
    <us-gaap:ScheduleOfSegmentReportingInformationBySegmentTextBlock
      contextRef="i649085be39034e7e9bf9074ef9353c90_D20190101-20190331"
      id="id3VybDovL2RvY3MudjEvZG9jOjY5ZmVhMjg1NjdmZjRmNjc5YWIxMzY5Mjc0OTBhZmU0L3NlYzo2OWZlYTI4NTY3ZmY0ZjY3OWFiMTM2OTI3NDkwYWZlNF83My9mcmFnOjM5MmNkYTEzOTMyNzQ2Yzk4MGY3MTlmYzNhNzg4YTVmL3RleHRyZWdpb246MzkyY2RhMTM5MzI3NDZjOTgwZjcxOWZjM2E3ODhhNWZfMjQ2NA_f2611235-ed7a-41c5-9066-e1defcd637e8">We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:44.617647%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:6.970588%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:9.470588%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.535294%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:8.000000%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;For the three months ended March 31, 2019 (in thousands):&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Rental&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Service &amp;amp; Maintenance&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Corporate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;13,387&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,125&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;479&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,991&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating costs and corporate expenses&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;5,885&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;3,699&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;147&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;8,051&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;17,782&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total other income, net&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;301&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;301&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Income before provision for&#160;income taxes&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,502&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;426&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;332&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(7,750)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;510&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;div&gt;&lt;span&gt;&lt;br/&gt;&lt;/span&gt;&lt;/div&gt;&lt;div style="margin-bottom:6pt;"&gt;&lt;table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"&gt;&lt;tr&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:44.833579%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.720177%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.572901%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:10.371134%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:7.720177%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:0.536377%;"/&gt;&lt;td style="width:0.1%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;td style="width:6.836524%;"/&gt;&lt;td style="width:1.0%;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;For the three months ended March 31, 2018 (in thousands):&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Rental&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Sales&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Service &amp;amp; Maintenance&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Corporate&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div style="text-align:center;"&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Total&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Revenue&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;11,471&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,998&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;249&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,718&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Operating costs and corporate expenses&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;4,704&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;2,191&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;65&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;7,408&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;14,368&#160;&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;Total other expense, net&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;&#x2014;&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(76)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(76)&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"&gt;&lt;div&gt;&lt;span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;"&gt;Income before provision for&#160;&#160;income taxes&lt;/span&gt;&lt;/div&gt;&lt;/td&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;6,767&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;807&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;184&#160;&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td colspan="3" style="display:none;"/&gt;&lt;td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;$&lt;/span&gt;&lt;/td&gt;&lt;td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"&gt;&lt;span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"&gt;(7,484)&lt;/span&gt;&lt;/td&gt;&lt;td colspan="3" 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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765350272">
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<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, 2019</div></th>
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<tr class="re">
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="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>
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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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<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>
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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>
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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>
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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>
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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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
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<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>
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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>Indicate if registrant meets the emerging growth company criteria.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityEmergingGrowthCompany</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_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), (5) Smaller Reporting Accelerated Filer or (6) Smaller Reporting Company and Large Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:filerCategoryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntitySmallBusiness">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicates that the company is a smaller reporting company with both a public float and revenues of less than $75 million.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12<br> -Subsection b-2<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntitySmallBusiness</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_DocumentAndEntityInformationAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Document and Entity Information [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_DocumentAndEntityInformationAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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>14
<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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765957344">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Dec. 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_AssetsCurrentAbstract', window );"><strong>Current Assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">$ 39,992<span></span>
</td>
<td class="nump">$ 52,628<span></span>
</td>
</tr>
<tr class="re">
<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 );">Trade accounts receivable, net of allowance for doubtful accounts of $299 and $291, respectively</a></td>
<td class="nump">10,298<span></span>
</td>
<td class="nump">7,219<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Inventory</a></td>
<td class="nump">35,499<span></span>
</td>
<td class="nump">30,974<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidTaxes', window );">Prepaid income taxes</a></td>
<td class="nump">3,100<span></span>
</td>
<td class="nump">3,148<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PrepaidExpenseAndOtherAssetsCurrent', window );">Prepaid expenses and other</a></td>
<td class="nump">1,702<span></span>
</td>
<td class="nump">2,430<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">90,591<span></span>
</td>
<td class="nump">96,399<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNoncurrent', window );">Long-term inventory, net of allowance for obsolescence of $19</a></td>
<td class="nump">3,997<span></span>
</td>
<td class="nump">3,980<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_ngs_RentalEquipmentNet', window );">Rental equipment, net of accumulated depreciation of $168,466 and $165,428, respectively</a></td>
<td class="nump">179,442<span></span>
</td>
<td class="nump">175,886<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentOtherNet', window );">Property and equipment, net of accumulated depreciation of $11,665 and $11,556, respectively</a></td>
<td class="nump">17,134<span></span>
</td>
<td class="nump">16,587<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets - operating leases, net of accumulated amortization $36</a></td>
<td class="nump">541<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">10,039<span></span>
</td>
<td class="nump">10,039<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IntangibleAssetsNetExcludingGoodwill', window );">Intangibles, net of accumulated amortization of $1,789 and $1,758, respectively</a></td>
<td class="nump">1,370<span></span>
</td>
<td class="nump">1,401<span></span>
</td>
</tr>
<tr class="ro">
<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">1,243<span></span>
</td>
<td class="nump">1,109<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">304,357<span></span>
</td>
<td class="nump">305,401<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current Liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">3,450<span></span>
</td>
<td class="nump">2,122<span></span>
</td>
</tr>
<tr class="ro">
<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 liabilities</a></td>
<td class="nump">4,341<span></span>
</td>
<td class="nump">8,743<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current operating leases</a></td>
<td class="nump">148<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Deferred income</a></td>
<td class="nump">133<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">8,072<span></span>
</td>
<td class="nump">10,946<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermLineOfCredit', window );">Line of credit</a></td>
<td class="nump">417<span></span>
</td>
<td class="nump">417<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredIncomeTaxLiabilitiesNet', window );">Deferred income tax liability</a></td>
<td class="nump">32,315<span></span>
</td>
<td class="nump">32,158<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long-term operating leases</a></td>
<td class="nump">393<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherLiabilitiesNoncurrent', window );">Other long-term liabilities</a></td>
<td class="nump">1,764<span></span>
</td>
<td class="nump">1,699<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Liabilities', window );">Total liabilities</a></td>
<td class="nump">42,961<span></span>
</td>
<td class="nump">45,220<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingencies', window );">Commitments and contingencies (Note 9)</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_StockholdersEquityAbstract', window );"><strong>Stockholders&#8217; Equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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, 5,000 shares authorized, no shares issued or outstanding</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, 30,000 shares authorized, par value $0.01; 13,133 and 13,005 shares issued and outstanding, respectively</a></td>
<td class="nump">131<span></span>
</td>
<td class="nump">130<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapitalCommonStock', window );">Additional paid-in capital</a></td>
<td class="nump">108,617<span></span>
</td>
<td class="nump">107,760<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RetainedEarningsAccumulatedDeficit', window );">Retained earnings</a></td>
<td class="nump">152,648<span></span>
</td>
<td class="nump">152,291<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total stockholders' equity</a></td>
<td class="nump">261,396<span></span>
</td>
<td class="nump">260,181<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and stockholders' equity</a></td>
<td class="nump">$ 304,357<span></span>
</td>
<td class="nump">$ 305,401<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_RentalEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_RentalEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130549-203045<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(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_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_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_AdditionalPaidInCapitalCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_AdditionalPaidInCapitalCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<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_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6801-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3044-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130532-203044<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130531-203044<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DeferredIncomeTaxLiabilitiesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32537-109319<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<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></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxLiabilitiesNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=77989000&amp;loc=SL49117168-202975<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=99380562&amp;loc=d3e13770-109266<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Goodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</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_IntangibleAssetsNetExcludingGoodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 50<br> -Paragraph 2<br> -Subparagraph ((a)(1),(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=66006027&amp;loc=d3e16323-109275<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6388964&amp;loc=d3e16212-109274<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IntangibleAssetsNetExcludingGoodwill</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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_InventoryNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(d))<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_InventoryNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_LongTermLineOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -URI http://asc.fasb.org/extlink&amp;oid=99376301&amp;loc=d3e1336-112600<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=99376301&amp;loc=d3e1314-112600<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermLineOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6676-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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_PrepaidTaxes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (g)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6676-107765<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=82887183&amp;loc=d3e6787-107765<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 340<br> -SubTopic 10<br> -Section 05<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=68074540&amp;loc=d3e5865-108316<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 340<br> -SubTopic 10<br> -Section 05<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=68074540&amp;loc=d3e5879-108316<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PrepaidTaxes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_PropertyPlantAndEquipmentOtherNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, 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_PropertyPlantAndEquipmentOtherNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RetainedEarningsAccumulatedDeficit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cumulative amount of the reporting entity's undistributed earnings or deficit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<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>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765691824">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Parentheticals) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Dec. 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_AssetsCurrentAbstract', window );"><strong>Current Assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent', window );">Allowance for doubtful accounts</a></td>
<td class="nump">$ 299<span></span>
</td>
<td class="nump">$ 291<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryValuationReserves', window );">Allowance for inventory obsolescence</a></td>
<td class="nump">19<span></span>
</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_AssetsNoncurrentAbstract', window );"><strong>Noncurrent Assets:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_AccumulatedDepreciationRentalEquipment', window );">Accumulated depreciation, rental equipment</a></td>
<td class="nump">168,466<span></span>
</td>
<td class="nump">165,428<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment', window );">Accumulated depreciation, property and equipment</a></td>
<td class="nump">11,665<span></span>
</td>
<td class="nump">11,556<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_ngs_OperatingLeaseRightOfUseAssetAccumulatedAmortization', window );">Accumulated amortization, operating lease right of use assets</a></td>
<td class="nump">36<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_ngs_IntangibleAssetsAccumulatedAmortization', window );">Accumulated amortization, intangibles</a></td>
<td class="nump">$ 1,789<span></span>
</td>
<td class="nump">$ 1,758<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Stockholders&#8217; Equity:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesAuthorized', window );">Preferred stock, shares authorized (in shares)</a></td>
<td class="nump">5,000,000<span></span>
</td>
<td class="nump">5,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesIssued', window );">Preferred stock, shares issued (in shares)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding (in shares)</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in USD per share)</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesAuthorized', window );">Common stock, shares authorized (in shares)</a></td>
<td class="nump">30,000,000<span></span>
</td>
<td class="nump">30,000,000<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued (in shares)</a></td>
<td class="nump">13,133,000<span></span>
</td>
<td class="nump">13,005,000<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_CommonStockSharesOutstanding', window );">Common stock, shares outstanding (in shares)</a></td>
<td class="nump">13,133,000<span></span>
</td>
<td class="nump">13,005,000<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_AccumulatedDepreciationRentalEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_AccumulatedDepreciationRentalEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_IntangibleAssetsAccumulatedAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_IntangibleAssetsAccumulatedAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_OperatingLeaseRightOfUseAssetAccumulatedAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Operating Lease, Right-Of-Use Asset, Accumulated Amortization</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_OperatingLeaseRightOfUseAssetAccumulatedAmortization</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.14)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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://fasb.org/us-gaap/role/ref/legacyRef<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><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.4)<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_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_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_AssetsNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AssetsNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-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_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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_InventoryValuationReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of valuation reserve for inventory.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=68049868&amp;loc=d3e3927-108312<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.BB)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e100047-122729<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 4<br> -Subparagraph (SX 210.12-09)<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e24092-122690<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(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_InventoryValuationReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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>
</div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6766465360">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Income Statements - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<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_RevenuesAbstract', window );"><strong>Revenue:</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_Revenues', window );">Revenue</a></td>
<td class="nump">$ 17,991<span></span>
</td>
<td class="nump">$ 14,718<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpensesAbstract', window );"><strong>Operating costs and expenses:</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_DirectCostsOfLeasedAndRentedPropertyOrEquipment', window );">Cost of rentals, exclusive of depreciation stated separately below</a></td>
<td class="nump">5,885<span></span>
</td>
<td class="nump">4,704<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherCostOfOperatingRevenue', window );">Cost of sales, exclusive of depreciation stated separately below</a></td>
<td class="nump">3,699<span></span>
</td>
<td class="nump">2,191<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfPropertyRepairsAndMaintenance', window );">Cost of service and maintenance</a></td>
<td class="nump">147<span></span>
</td>
<td class="nump">65<span></span>
</td>
</tr>
<tr class="re">
<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 expense</a></td>
<td class="nump">2,493<span></span>
</td>
<td class="nump">2,021<span></span>
</td>
</tr>
<tr class="ro">
<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">5,558<span></span>
</td>
<td class="nump">5,387<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_CostsAndExpenses', window );">Total operating costs and expenses</a></td>
<td class="nump">17,782<span></span>
</td>
<td class="nump">14,368<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income</a></td>
<td class="nump">209<span></span>
</td>
<td class="nump">350<span></span>
</td>
</tr>
<tr class="re">
<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_InterestExpense', window );">Interest expense</a></td>
<td class="num">(4)<span></span>
</td>
<td class="num">(3)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherNonoperatingIncomeExpense', window );">Other income (expense), net</a></td>
<td class="nump">305<span></span>
</td>
<td class="num">(73)<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_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">301<span></span>
</td>
<td class="num">(76)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">510<span></span>
</td>
<td class="nump">274<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxExpenseBenefit', window );">Income tax expense</a></td>
<td class="nump">153<span></span>
</td>
<td class="nump">49<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 357<span></span>
</td>
<td class="nump">$ 225<span></span>
</td>
</tr>
<tr class="ro">
<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:</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_EarningsPerShareBasic', window );">Basic (in USD per share)</a></td>
<td class="nump">$ 0.03<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted (in USD per share)</a></td>
<td class="nump">$ 0.03<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_WeightedAverageSharesOutstandingBasicAndDilutedAbstract', window );"><strong>Weighted average shares outstanding:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic (in shares)</a></td>
<td class="nump">13,064<span></span>
</td>
<td class="nump">12,920<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted (in shares)</a></td>
<td class="nump">13,268<span></span>
</td>
<td class="nump">13,169<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_RentalMember', window );">Rental</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_RevenuesAbstract', window );"><strong>Revenue:</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_Revenues', window );">Revenue</a></td>
<td class="nump">$ 13,387<span></span>
</td>
<td class="nump">$ 11,471<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpensesAbstract', window );"><strong>Operating costs and expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Total operating costs and expenses</a></td>
<td class="nump">5,885<span></span>
</td>
<td class="nump">4,704<span></span>
</td>
</tr>
<tr class="re">
<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="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_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">7,502<span></span>
</td>
<td class="nump">6,767<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_ProductSalesMember', window );">Sales</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_RevenuesAbstract', window );"><strong>Revenue:</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_Revenues', window );">Revenue</a></td>
<td class="nump">4,125<span></span>
</td>
<td class="nump">2,998<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember', window );">Service and maintenance</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_RevenuesAbstract', window );"><strong>Revenue:</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_Revenues', window );">Revenue</a></td>
<td class="nump">479<span></span>
</td>
<td class="nump">249<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpensesAbstract', window );"><strong>Operating costs and expenses:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<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_CostsAndExpenses', window );">Total operating costs and expenses</a></td>
<td class="nump">147<span></span>
</td>
<td class="nump">65<span></span>
</td>
</tr>
<tr class="ro">
<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="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_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">$ 332<span></span>
</td>
<td class="nump">$ 184<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_WeightedAverageSharesOutstandingBasicAndDilutedAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 Shares Outstanding Basic and Diluted [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_WeightedAverageSharesOutstandingBasicAndDilutedAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_CostOfPropertyRepairsAndMaintenance">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 of keeping the property in good condition but that do not appreciably prolong the life or increase the value of the property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfPropertyRepairsAndMaintenance</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs of sales and operating expenses for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsAndExpensesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpensesAbstract</td>
</tr>
<tr>
<td style="padding-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_DepreciationDepletionAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_DirectCostsOfLeasedAndRentedPropertyOrEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense incurred and directly related to generating revenue from leased and rented property or equipment.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DirectCostsOfLeasedAndRentedPropertyOrEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_EarningsPerShareAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1337-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=109256448&amp;loc=d3e4984-109258<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1252-109256<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=SL5780133-109256<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_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/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=109256448&amp;loc=d3e4984-109258<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1252-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1337-109256<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=SL5780133-109256<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=68072869&amp;loc=d3e41242-110953<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(10))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(15))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (h)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 20<br> -Section 45<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109238882&amp;loc=d3e38679-109324<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of the cost of borrowed funds accounted for as interest expense.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6450988&amp;loc=d3e26243-108391<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=114775744&amp;loc=d3e28555-108399<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (210.5-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669619-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669625-108580<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -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_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_NonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NonoperatingIncomeExpenseAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpenseAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherCostOfOperatingRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Other costs incurred during the reporting period related to other revenue generating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherCostOfOperatingRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_OtherNonoperatingIncomeExpense">
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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 income (expense) related to nonoperating activities, classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherNonoperatingIncomeExpense</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SellingGeneralAndAdministrativeExpense</td>
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<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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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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://fasb.org/us-gaap/role/ref/legacyRef<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=109260490&amp;loc=d3e1448-109256<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 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>
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<td class="text">&#160;<span></span>
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<td class="nump">157<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">157<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">66<span></span>
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<td class="nump">362<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="num">(495)<span></span>
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<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">225<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">225<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding, end of period (in shares) at Mar. 31, 2018</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding, end of period (in shares) at Mar. 31, 2018</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">12,949,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Balance, end of period at Mar. 31, 2018</a></td>
<td class="nump">$ 257,634<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 129<span></span>
</td>
<td class="nump">105,415<span></span>
</td>
<td class="nump">152,090<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding, beginning of period (in shares) at Dec. 31, 2018</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding, beginning of period (in shares) at Dec. 31, 2018</a></td>
<td class="nump">13,005,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13,005,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Balance, beginning of period at Dec. 31, 2018</a></td>
<td class="nump">$ 260,181<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 130<span></span>
</td>
<td class="nump">107,760<span></span>
</td>
<td class="nump">152,291<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward', window );"><strong>Increase (Decrease) in Stockholders' Equity [Roll Forward]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Exercise of common stock options, shares (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">57,000<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_StockIssuedDuringPeriodValueStockOptionsExercised', window );">Exercise of common stock options</a></td>
<td class="nump">555<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">555<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 );">Compensation expense on common stock options</a></td>
<td class="nump">31<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">31<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_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures', window );">Issuance of restricted stock, shares (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">71,000<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_StockIssuedDuringPeriodValueRestrictedStockAwardGross', window );">Issuance of restricted stock</a></td>
<td class="nump">0<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_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition', window );">Compensation expense on restricted common stock</a></td>
<td class="nump">464<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1<span></span>
</td>
<td class="nump">463<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_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Taxes paid related to net shares settlement of equity awards</a></td>
<td class="num">(192)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(192)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 357<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">357<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesOutstanding', window );">Preferred stock, shares outstanding, end of period (in shares) at Mar. 31, 2019</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesOutstanding', window );">Common stock, shares outstanding, end of period (in shares) at Mar. 31, 2019</a></td>
<td class="nump">13,133,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">13,133,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rc">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Balance, end of period at Mar. 31, 2019</a></td>
<td class="nump">$ 261,396<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 131<span></span>
</td>
<td class="nump">$ 108,617<span></span>
</td>
<td class="nump">$ 152,648<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_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 adjustment to stockholders' equity associated with an employee's income tax withholding obligation as part of a net-share settlement of a share-based 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_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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) resulting from recognition of equity-based compensation for restricted stock units.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase to additional paid-in capital (APIC) 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=109196918&amp;loc=d3e11149-113907<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5047-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 20<br> -Section 55<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=109196918&amp;loc=d3e11178-113907<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=79507207&amp;loc=d3e4534-113899<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_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_IncreaseDecreaseInStockholdersEquityRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 roll forward is a reconciliation of a concept from the beginning of a period to the end of a 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_IncreaseDecreaseInStockholdersEquityRollForward</td>
</tr>
<tr>
<td style="padding-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_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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669619-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669625-108580<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -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_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_PreferredStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI 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>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_StockIssuedDuringPeriodSharesNewIssues</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</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_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 during the period related to Restricted Stock Awards, net of any shares forfeited.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures</td>
</tr>
<tr>
<td style="padding-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_StockIssuedDuringPeriodValueRestrictedStockAwardGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate value of stock related to Restricted Stock Awards issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Value of stock issued as a result of the exercise of stock options.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.29-31)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_StockIssuedDuringPeriodValueStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<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>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765289088">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Mar. 31, 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_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>CASH FLOWS FROM OPERATING ACTIVITIES:</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
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<td class="nump">$ 357<span></span>
</td>
<td class="nump">$ 225<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_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract', window );"><strong>Adjustments to reconcile net income to net cash (used in) provided by operating&#160;activities:</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationDepletionAndAmortization', window );">Depreciation and amortization</a></td>
<td class="nump">5,558<span></span>
</td>
<td class="nump">5,387<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_DeferredIncomeTaxExpenseBenefit', window );">Deferred income taxes</a></td>
<td class="nump">157<span></span>
</td>
<td class="nump">48<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_ShareBasedCompensation', window );">Stock-based compensation</a></td>
<td class="nump">495<span></span>
</td>
<td class="nump">428<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProvisionForDoubtfulAccounts', window );">Bad debt (recovery) allowance</a></td>
<td class="nump">10<span></span>
</td>
<td class="num">(50)<span></span>
</td>
</tr>
<tr class="ro">
<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 sale of assets</a></td>
<td class="num">(22)<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue', window );">(Gain) loss on company owned life insurance</a></td>
<td class="num">(99)<span></span>
</td>
<td class="nump">67<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract', window );"><strong>Changes in operating assets and liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Trade accounts receivables</a></td>
<td class="num">(3,089)<span></span>
</td>
<td class="nump">865<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Inventory</a></td>
<td class="num">(4,468)<span></span>
</td>
<td class="nump">15<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets', window );">Prepaid expenses and prepaid income taxes</a></td>
<td class="nump">202<span></span>
</td>
<td class="nump">488<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities', window );">Accounts payable and accrued liabilities</a></td>
<td class="num">(3,074)<span></span>
</td>
<td class="num">(2,539)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInContractWithCustomerLiability', window );">Deferred income</a></td>
<td class="nump">52<span></span>
</td>
<td class="nump">109<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInOtherCurrentAssets', window );">Other</a></td>
<td class="nump">75<span></span>
</td>
<td class="nump">85<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivities', window );">NET CASH (USED IN) PROVIDED BY OPERATING ACTIVITIES</a></td>
<td class="num">(3,846)<span></span>
</td>
<td class="nump">5,128<span></span>
</td>
</tr>
<tr class="ro">
<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="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Purchase of rental equipment and property and equipment</a></td>
<td class="num">(9,130)<span></span>
</td>
<td class="num">(8,712)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquireLifeInsurancePolicies', window );">Purchase of company owned life insurance</a></td>
<td class="num">(40)<span></span>
</td>
<td class="num">(139)<span></span>
</td>
</tr>
<tr class="re">
<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 property and equipment</a></td>
<td class="nump">11<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromInsuranceSettlementInvestingActivities', window );">Proceeds from insurance claims of property and equipment</a></td>
<td class="nump">11<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivities', window );">NET CASH USED IN INVESTING ACTIVITIES</a></td>
<td class="num">(9,148)<span></span>
</td>
<td class="num">(8,851)<span></span>
</td>
</tr>
<tr class="ro">
<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 custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_ProceedsFromPurchaseCommitmentDiscountNet', window );">Payments from other long-term liabilities, net</a></td>
<td class="num">(5)<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_ProceedsFromStockOptionsExercised', window );">Proceeds from exercise of stock options</a></td>
<td class="nump">555<span></span>
</td>
<td class="nump">157<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation', window );">Taxes paid related to net share settlement of equity awards</a></td>
<td class="num">(192)<span></span>
</td>
<td class="num">(495)<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_NetCashProvidedByUsedInFinancingActivities', window );">NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES</a></td>
<td class="nump">358<span></span>
</td>
<td class="num">(347)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect', window );">NET CHANGE IN CASH AND CASH EQUIVALENTS</a></td>
<td class="num">(12,636)<span></span>
</td>
<td class="num">(4,070)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD</a></td>
<td class="nump">52,628<span></span>
</td>
<td class="nump">69,208<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents', window );">CASH AND CASH EQUIVALENTS AT END OF PERIOD</a></td>
<td class="nump">39,992<span></span>
</td>
<td class="nump">65,138<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SupplementalCashFlowInformationAbstract', window );"><strong>SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestPaidNet', window );">Interest paid</a></td>
<td class="nump">4<span></span>
</td>
<td class="nump">3<span></span>
</td>
</tr>
<tr class="ro">
<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">2<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract', window );"><strong>NON-CASH TRANSACTIONS</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_ngs_TransferOfRentalEquipmentToInventory', window );">Transfer of rental equipment components to inventory</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">40<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_TransferOfPrepaidsToRentalEquipmentAndInventory', window );">Transfer of prepaids to rental equipment and inventory</a></td>
<td class="nump">574<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability', window );">Right of use acquired through an operating lease</a></td>
<td class="nump">$ 126<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_ngs_ProceedsFromPurchaseCommitmentDiscountNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_ProceedsFromPurchaseCommitmentDiscountNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_TransferOfPrepaidsToRentalEquipmentAndInventory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Transfer Of Prepaids To Rental Equipment And Inventory</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_TransferOfPrepaidsToRentalEquipmentAndInventory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_TransferOfRentalEquipmentToInventory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_TransferOfRentalEquipmentToInventory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3521-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3044-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=SL98516268-108586<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=98513438&amp;loc=d3e33268-110906<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-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_DeferredIncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 6.I.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=34349781&amp;loc=d3e330036-122817<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32639-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredIncomeTaxExpenseBenefit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DepreciationDepletionAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_GainLossOnDispositionOfAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=109226348&amp;loc=d3e2443-110228<br><br>Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=109226691&amp;loc=d3e2941-110230<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnDispositionOfAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=d3e4297-108586<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_IncreaseDecreaseInContractWithCustomerLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_IncreaseDecreaseInContractWithCustomerLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInInventories">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOtherCurrentAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 current 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/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_IncreaseDecreaseInOtherCurrentAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in prepaid expenses, and assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestPaidNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=98513485&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 17<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3367-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestPaidNet</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 change in cash surrender or contract value during the period which adjusted the amount of premiums paid in determining the expense or income recognized under the contract for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 325<br> -SubTopic 30<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6384439&amp;loc=d3e42048-111605<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<tr>
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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_NetCashProvidedByUsedInFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<td>duration</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>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3536-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3521-108585<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</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>
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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_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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669619-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669625-108580<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -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_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_PaymentsRelatedToTaxWithholdingForShareBasedCompensation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3291-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 25<br> -Paragraph 19A<br> -URI http://asc.fasb.org/extlink&amp;oid=107668666&amp;loc=SL79513924-113897<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquireLifeInsurancePolicies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow for payment of premium on corporate-owned life insurance policy, classified as investing activities. Includes, but is not limited to, bank-owned life insurance policy.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 21C<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=SL94080552-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_PaymentsToAcquireLifeInsurancePolicies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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>
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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 );">- Definition</a><div><p>Amount of cash inflow for proceeds from settlement of insurance claim, classified as investing activities. Excludes insurance settlement classified as operating activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 21B<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=SL94080549-108585<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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_ProceedsFromInsuranceSettlementInvestingActivities</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&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>
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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><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 exercise of stock options granted under share-based compensation arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=SL79508275-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3255-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromStockOptionsExercised</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.5)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130534-203044<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProvisionForDoubtfulAccounts</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase in right-of-use asset obtained in exchange for operating lease liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=77888399&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, 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>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensation</td>
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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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6756684640">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock', window );">Basis of Presentation and Summary of Significant Accounting Policies</a></td>
<td class="text">Basis of Presentation and Summary of Significant Accounting Policies<div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These notes apply to the unaudited condensed consolidated financial statements of Natural Gas Services Group, Inc. a Colorado corporation&#160;(the "Company", &#8220;NGSG&#8221;, "Natural Gas Services Group", "we" or "our").&#160;&#160;The accompanying unaudited condensed consolidated financial statements include the accounts of the Company, its subsidiary, NGSG Properties, LLC and the rabbi trust associated with the Company's deferred compensations plan, see Note 4. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These financial statements include all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at March 31, 2019 and the results of our operations for the three months ended March 31, 2019&#160;and 2018 not misleading.&#160;&#160;As permitted by the rules and regulations of the Securities and Exchange Commission (SEC), the accompanying condensed consolidated financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP).&#160;&#160;These financial statements should be read in conjunction</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 on file with the SEC.&#160;&#160;In our opinion, the condensed consolidated financial statements are a fair presentation of the financial position, results of operations, changes in stockholders' equity and cash flows for the periods presented.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2019.</span></div><div><span><br/></span></div><div style="margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Revenue Recognition Policy</span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606") on January, 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below.&#160;&#160;&#160;&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company applied ASC 606 using the cumulative effect method. We had no significant changes in our recognition of revenue at adoption and our review of all open revenue from contracts with customers on January 1, 2018 indicated we had no adjustment to be made. If an adjustment had been needed, we would have recognized the cumulative effect of initially applying ASC 606 with an adjustment to the opening balance of equity at January 1, 2018.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is measured based on a consideration specified in a customer&#8217;s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).  We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our condensed consolidated income statement. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Nature of Goods and Services</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following is a description of principal activities from which the Company generates its revenue: </span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:115%;">Rental Revenue. </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include a fee for servicing the compressor or flare during the rental contract. Our rental contracts range from six to twenty-four months, with revenue  being recognized over time, in equal payments over the term of the contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter. In accordance ASC 842 &#8211; Leases, we have applied the practical expedient ASC 842-10-15-42A, which allows the Company to combine lease and non-lease components.</span></div><div style="padding-left:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Sales Revenue.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Company generates revenue by the sale of custom/fabricated compressors, flare systems and parts, as well as, exchange/rebuilding customer owned compressors and sale of used rental equipment. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Custom/fabricated compressors and flare systems - The Company designs and fabricates compressors and flares based on the customer&#8217;s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the customer until the compressor or flare package is complete and shipped, or in accordance with a bill and hold arrangements the customer accepts title and assumes the risk and rewards of ownership. We request some of our  customers to make progressive payments as the product is being built; these payments are recorded as a contract liability on the Deferred Income line on the condensed consolidated balance sheet until control has been transferred. &#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a standard industry practice and is not considered a performance obligation. </span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">From time to time, upon the customer&#8217;s written request, we recognize revenue when manufacturing is complete and the equipment is ready for shipment. At the customer&#8217;s request, we will bill the customer upon completing all performance obligations, but before shipment. The customer will formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment from our finished goods, such that they are not available to fill other orders. Per the customer&#8217;s agreement change of control is passed to the customer once the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is shouldered by the customer and there are no exceptions to the customer&#8217;s commitment to accept and pay for the manufactured equipment. Revenues recognized related to bill and hold arrangements for the three months ended March 31, 2019 was approximately $2.7 million.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Parts</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"> - </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis. </span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the customer&#8217;s malfunctioning compressor or rebuild the customer&#8217;s compressor. Revenue is recognized after control of the replacement compressor has transferred to the customer by physical delivery, delivery and installment or shipment of the compressor.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue from the sale of rental equipment is recognized when the control has passed to the customer, when the customer has taken physical possession or the equipment has been shipped.</span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Service and Maintenance Revenue</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after services in the contract are rendered. </span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific customers can vary. Also, the transaction prices are not subject to variable consideration constraints.</span></div><div style="text-indent:36pt;"><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Disaggregation of Revenue</span></div><div style="text-indent:36pt;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table shows the Company's revenue disaggregated by product or service type for the three months ended March 31, 2019 and 2018:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:68.467836%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:11.450292%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:2.239766%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.842105%;"/><td style="width:1.0%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:21pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:21pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Three months ended March 31,</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Compressors - sales</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,708&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,829&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Flares - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">435&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">522&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Other (Parts/Rebuilds) - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">982&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">647&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Service and maintenance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">479&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue from contracts with customers</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,604&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,247&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Add: non-ASC 606 rental revenue</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,387&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11,471&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,991&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,718&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Contract Balances</span></div><div style="text-indent:108pt;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019 and December 31, 2018, we had the following receivables and deferred income from contracts with customers: </span></div><div style="text-indent:18pt;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:61.157895%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:15.836257%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:2.285380%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:14.520468%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31, 2018</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Accounts Receivable</span></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - contracts with customers</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,484&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,250&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - non-ASC 606</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,113&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">5,260&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,597&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,510&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Allowance for doubtful accounts</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(299)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(291)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable, net</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,298&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,219&#160;</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Deferred income</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">133&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">81&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company recognized $15,000 in revenue for the period ended March 31, 2019 that was included in deferred income at the beginning of 2019. For the period ended December 31, 2018, the Company recognized revenue of  $176,000 from amounts related to sales that were included in deferred income at the beginning of&#160;2018.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The changes in the balance of accounts receivable and deferred income were primarily due to normal timing differences between our performance and the customers&#8217; payments.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Transaction Price Allocated to the Remaining Performance Obligations</span></div><div style="text-indent:72pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019, the Company did not have revenue related to performance obligations under ASC 606-10-50-13.</span></div><div><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Contract Costs</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:90pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company applies the practical expedient  in ASC 340-40-25-4 and recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that the Company otherwise would have recognized is one year or less. These costs are included in selling, general and administrative expense on our consolidated income statement. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Leases</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">On January 1, 2019, we adopted ASC 842, Leases ("ASC 842") and all the related amendments&#160;using the modified retrospective method. We recognized the cumulative effect of initially applying the new lease standard and had no adjustments to retained earnings. The comparative information has not been restated and continues to be reported under the lease accounting standard in effect for those periods. We do not expect the adoption of the new lease standard to have a material impact to our net income on an ongoing basis.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The new lease standard requires all leases to be reported on the balance sheet as right-of-use assets and lease obligations. We elected the practical expedients permitted under the transition guidance of the new standard that retained the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. We did not reassess whether any contracts or land easements entered into prior to adoption are leases or contain leases.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"><tr><td style="width:1.0%;"/><td style="width:29.481481%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:28.864198%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Adjustments due to ASU 2016-02</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at January 1, 2019</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance Sheet</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Assets</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Liabilities</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long term portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessee, applies the practical expedient in ASC 842-10-15-37, and does not separate non-lease components from lease components, therefore, accounting for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessor, applies the practical expedient in ASC 842-10-15-42A, in leases that contain the same timing and pattern of transfer for lease and non-lease components and are deemed operating leases, the lessor is not required to separate non-lease components from lease components. Therefore, on any lease that meets these qualifications we have chosen to account for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company applies the practical expedient in ASC 842-20-25-2, to recognize the lease payments in profit or loss on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred for leases with terms of 12 months or less.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Fair Value of Financial Instruments</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, deferred compensation plan (cash portion) and our line of credit.  Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on &#8220;Level 1&#8221; inputs, which consist of quoted prices in active markets for identical assets.  We believe that the recorded values of all of our other financial instruments approximate their fair values because of their nature (variable rate debt)  and relatively short maturity dates or durations.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:174%;">Income Taxes</span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each of the states in which we operate. This process involves us estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheet. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the tax provision in the statement of operations.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax assets.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that has a greater than 50 percent likely of being realized upon ultimate settlement. &#160;</span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our policy regarding income tax interest and penalties is to expense those items as other expense.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">During the fourth quarter of 2018, the Company discovered a potential uncertain tax position attributable to the deductibility of certain executive compensation expense for federal income tax purposes aggregating approximately $168,000, $149,000 and&#160;$230,000 for the years ended December 31, 2017, 2016 and 2015, respectively.  As a result, in accordance with ASC Topic 740, during the fourth quarter of 2018, the Company recorded a tax adjustment of $547,000 and accrued penalty and interest expense of $55,000 attributable to the uncertain tax position.  Management of the Company determined that the effect of the potential uncertain tax position on previously reported results of operations for the years ended December 31, 2017 and 2016 was not material.&#160;The Company plans on amending its previously filed federal income tax returns and is in the process of analyzing certain offsetting deductions to reduce uncertain tax position reserve.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Reclassification of Prior Period Balances</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Certain reclassifications have been made to prior period amounts, due to our adoption of ASC 842, to conform to the current-year presentation. These reclassifications had no effect on the financial statements.</span></div><span></span>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Compensation<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</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_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract', window );"><strong>Disclosure of Compensation Related Costs, Share-based Payments [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock', window );">Stock-Based Compensation</a></td>
<td class="text">Stock-Based Compensation<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Stock Options:</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">A summary of option activity under our 1998 Stock Option Plan  as  of December 31, 2018, and changes during the three months ended March 31, 2019 is presented below.</span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"/><td style="width:45.128130%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Number</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;of</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stock Options</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Aggregate</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Intrinsic</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Value</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">283,686&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">20.46&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.58</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">434&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercised</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(56,352)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8.97&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">474&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Canceled/Forfeited</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(2,000)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26.66&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225,334&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.28&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.18</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Exercisable, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">214,901&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.04&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.00</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26&#160;</span></td></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table summarizes information about our stock options outstanding at March 31, 2019:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"/><td style="width:38.588235%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.176471%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Range of Exercise Prices</span></div></td><td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Outstanding</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Exercisable</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$0.01-15.70</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2.82</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14.89&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14.89&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$15.71-17.81</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">42,000&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1.32</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17.54&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">42,000&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17.54&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$17.82-20.48</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">50,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2.09</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">19.43&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">50,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">19.43&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$20.49-33.36</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">124,334&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6.08</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">27.36&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">113,901&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">27.29&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225,334&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.18</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.28&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">214,901&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.04&#160;</span></td></tr></table></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The summary of the status of our unvested stock options as of December 31, 2018 and changes during the three months ended&#160;March 31, 2019 is presented below.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"/><td style="width:72.008811%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.628488%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.534214%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.628488%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Unvested stock options:</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Grant Date Fair Value Per Share</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">20,865&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Vested</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(10,432)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,433&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr></table></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019, there was $103,018 of unrecognized compensation cost related to unvested options.&#160;&#160;Such cost is expected to be recognized over a weighted-average period of one year.&#160;Total compensation expense for stock options was $30,779 and $66,625 for the three months ended&#160;March 31, 2019 and 2018, respectively. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Restricted Shares/Units:</span></div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">In accordance with the Company's employment agreement with Stephen Taylor, the Company's Chief Executive Officer, the Compensation Committee reviewed his performance in determining the issuance of restricted common stock.  Based on this review which included consideration of the Company's 2018 performance, Mr. Taylor, was awarded 131,674 restricted shares/units on March 29, 2019, which vest over three years, in equal annual installments, beginning March 29, 2020. On March 29, 2019, the Compensation Committee awarded  20,000 restricted shares/units to each of G. Larry Lawrence, our CFO, and James Hazlett, our Vice President of Technical Services. The restricted shares to Messrs.  Lawrence and Hazlett vest over three years, in equal annual installments, beginning March 29, 2020. The restricted common stock awarded to Messrs. Taylor, Lawrence and Hazlett are contingent of the Company's shareholders approval and adoption of the Natural Gas Services Group, Inc. 2019 Equity Incentive Plan at the Annual Shareholder meeting on June 20, 2019.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:12pt;line-height:115%;">&#160;</span> We also awarded and issued 23,136 shares of restricted common stock to the independent members of our Board of Directors as partial payment for 2019 services as directors.  The restricted stock issued to our directors vests over one year, in quarterly installments, beginning March 31, 2020. Total compensation expense related to restricted awards was $463,466 and $361,630 for the three months ended&#160;March 31, 2019 and 2018, respectively.  As of March 31, 2019, there was a total of $2.6 million of unrecognized compensation expense related to these shares/units which is expected to be recognized over the next two years.<span></span>
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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>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765370560">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Inventory<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryDisclosureAbstract', window );"><strong>Inventory Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryDisclosureTextBlock', window );">Inventory</a></td>
<td class="text">Inventory<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our inventory, net of allowance for obsolescence of &#160;$19,000 at March 31, 2019 and December 31, 2018, respectively, consisted of the following amounts:</span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.707602%;"><tr><td style="width:1.0%;"/><td style="width:61.929619%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:16.181818%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.533138%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.155425%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31, 2018</span></td></tr><tr><td colspan="3" style="height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Raw materials - current</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">29,821&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26,152&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Raw materials - long term, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,997&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,980&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Finished Goods</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,022&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,022&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Work in process</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,656&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,800&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">39,496&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">34,954&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our long-term inventory consists of raw materials that remain viable but that the Company does not expect to sell or use within the year.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">During the three months ended March 31, 2019 and 2018, there were no write-offs of obsolete inventory against the allowance for obsolescence.</span></div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -URI http://asc.fasb.org/topic&amp;trid=2126998<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6624917040">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Deferred Compensation Plans<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</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_PostemploymentBenefitsAbstract', window );"><strong>Postemployment Benefits [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_CompensationAndEmployeeBenefitPlansTextBlock', window );">Deferred Compensation Plans</a></td>
<td class="text">Deferred Compensation Plans<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company has a non-qualified deferred compensation plan for executive officers, directors and certain eligible employees. The assets of the deferred compensation plan are held in a rabbi trust and are subject to additional risk of loss in the event of bankruptcy or insolvency of the Company. The plan allows for deferral of up to 90% of a participant&#8217;s base salary, bonus, commissions, director fees and restricted stock unit awards. A Company owned life insurance policy held in a rabbi trust is utilized as a source of funding for the plan. The cash surrender value of the life insurance policy is $1.2 million and $966,000 as of March 31, 2019 and 2018, respectively. For the three months ending March 31, 2019, we reported in other income (expense) in the consolidated income statement a gain related to the policy of approximately $99,000 and for the same period in 2018, a loss of approximately $67,000.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For deferrals of base salary, bonus, commissions and director fees, settlement payments are made to participants in cash, either in a lump sum or in periodic installments. The obligation to pay the deferred compensation and the deferred director fees is adjusted to reflect the positive or negative performance of investment measurement options selected by each participant and was $1.2 million and $992,000 as of March 31, 2019 and 2018, respectively. The deferred obligation is included in other long-term liabilities in the condensed consolidated balance sheet. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">For deferrals of restricted stock units, the plan does not allow for diversification, therefore, distributions are paid in shares of common stock and the obligation is carried at grant value. As of March 31, 2019 and 2018, respectively, 63,062 and&#160;104,590&#160;unvested restricted stock units have been deferred of which 78,771&#160;and&#160;32,037&#160;units have been released and issued to the deferred compensation plan with a value of $1.7 million and $816,373, respectively.</span></div><span></span>
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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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -URI http://asc.fasb.org/topic&amp;trid=2228938<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<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://fasb.org/us-gaap/role/ref/legacyRef<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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 715<br> -URI http://asc.fasb.org/topic&amp;trid=2235017<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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612520896">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Credit Facility<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureAbstract', window );"><strong>Debt Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtDisclosureTextBlock', window );">Credit Facility</a></td>
<td class="text">Credit Facility<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We have a senior secured revolving credit agreement the ("Amended Credit Agreement") with JP Morgan Chase Bank, N.A (the "Lender") with an aggregate commitment of $30 million, subject to collateral availability. We also have a right to request from the Lender, on an uncommitted basis, an increase of up to $20 million on the aggregate commitment (which could potentially increase the commitment amount to $50 million).  On August 31, 2017, we amended and renewed the Amended Credit Agreement, extending the maturity date to December 31, 2020. No other material revisions were made to the credit facility.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Borrowing Base</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. At any time before the maturity of the Amended Credit Agreement, we may draw, repay and re-borrow amounts available under the borrowing base up to the maximum aggregate availability discussed above. Generally, the borrowing base equals the sum of (a) 80% of our eligible accounts receivable plus (b) 50% of the book value of our eligible general inventory (not to exceed 50%  of the commitment amount at the time) plus (c) 75% of the book value of our eligible equipment inventory.&#160;&#160;The Lender may adjust the borrowing base components if material deviations in the collateral are discovered in future audits of the collateral. We had $29.5 million borrowing base availability at March 31, 2019 under the terms of our Amended Credit Agreement.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Interest and Fees</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">.&#160;&#160;Under the terms of the Amended Credit Agreement, we have the option of selecting the applicable variable rate for each revolving loan, or portion thereof, of either (a)&#160;LIBOR multiplied by the Statutory Reserve Rate (as defined in the Amended Credit Agreement), with respect to this rate, for Eurocurrency funding, plus the Applicable Margin (&#8220;LIBOR-based&#8221;), or (b)&#160;CB Floating Rate, which is the Lender's Prime Rate less the Applicable Margin; provided, however, that no more than three LIBOR-based borrowings under the agreement may be outstanding at any one time.&#160;For purposes of the LIBOR-based interest rate, the Applicable Margin is 1.50%. For purposes of the CB Floating Rate, the Applicable Margin is 1.50%. For the three month period ended March 31, 2019, our weighted average interest rate was 3.75%.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Accrued interest is payable monthly on outstanding principal amounts, provided that accrued interest on LIBOR-based loans is payable at the end of each interest period, but in no event less frequently than quarterly. In addition, fees and expenses are payable in connection with our requests for letters of credit (generally equal to the Applicable Margin for LIBOR-related borrowings multiplied by the face amount of the requested letter of credit) and administrative and legal costs.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Maturity</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The maturity date of the Amended Credit Agreement is December&#160;31, 2020, at which time all amounts borrowed under the agreement will be due and outstanding letters of credit must be cash collateralized. The agreement may be terminated early upon our request or the occurrence of an event of default.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Security</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The obligations under the Amended Credit Agreement are secured by a first priority lien on all of our inventory and accounts and leases receivables, along with a first priority lien on a variable number of our leased compressor equipment the book value of which must be maintained at a minimum of 2.00 to 1.00 commitment coverage ratio (such ratio being equal to (i) the amount of the borrowing base as of such date to (ii) the amount of the commitment as of such date).</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Covenants.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Amended Credit Agreement contains customary representations and warranties, as well as covenants which, among other things, limit our ability to incur additional indebtedness and liens; enter into transactions with affiliates; make acquisitions in excess of certain amounts; pay dividends; redeem or repurchase capital stock or senior notes; make investments or loans; make negative pledges; consolidate, merge or effect asset sales; or change the nature of our business. In addition, we also have certain financial covenants that require us to maintain on a consolidated basis a leverage ratio less than or equal to 2.50 to 1.00 as of the last day of each fiscal quarter.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Events of Default and Acceleration.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Amended Credit Agreement contains customary events of default for credit facilities of this size and type, and includes, without limitation, payment defaults; defaults in performance of covenants or other agreements contained in the loan documents; inaccuracies in representations and warranties; certain defaults, termination events or similar events; certain defaults with respect to any other Company indebtedness in excess of $50,000; certain bankruptcy or insolvency events; the rendering of certain judgments in excess of $150,000; certain ERISA events; certain change in control events and the defectiveness of any liens under the secured revolving credit facility.  Obligations under the Amended Credit Agreement may be accelerated upon the occurrence of an event of default.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019, we were in compliance with all covenants in our Amended Credit Agreement.&#160;&#160;A default under our Credit Agreement could trigger the acceleration of our bank debt so that it is immediately due and payable.&#160;&#160;Such default would likely limit our ability to access other credit. At March 31, 2019 and December 31, 2018, our outstanding balance on the line of credit was $417,000.</span></div><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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -URI http://asc.fasb.org/topic&amp;trid=2208564<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6756740208">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</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_LeasesAbstract', window );"><strong>Leases [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_LesseeOperatingLeasesTextBlock', window );">Leases</a></td>
<td class="text">Leases<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company adopted the new lease standard on January 1, 2019 using the modified retrospective transition method. Prior periods were not retrospectively adjusted and continue to be reported under the accounting standards in effect for those periods. The Company elected the package of practical expedients permitted under the transition guidance within the new lease standard, which among other things, allowed the company to continue to account for existing leases based on the historical lease classification. The Company also elected the practical expedients to exclude right-of-use ("ROU") assets and lease liabilities for leases with an initial term of 12 months or less from the balance sheet, and to combine lease and non-lease components for property leases, which primarily relate to ancillary expenses such as common area maintenance charges and management fees.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company determines if an arrangement is a lease at inception by assessing whether it conveys the right to control the use of an identified asset for a period of time in exchange for consideration. The Company&#8217;s leases are primarily related to property leases for its field offices. The Company's leases have remaining lease terms of one to 10 years. Renewal and termination options are included in the lease term when it is reasonably certain that the Company will exercise the option.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company's lease agreements do not contain any contingent rental payments, material residual guarantees or material restrictive covenants.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">ROU assets and lease liabilities are recognized at the lease commencement date based on the present value of lease payments over the lease term. As substantially all of the Company's leases do not provide an implicit rate, the Company uses its incremental borrowing rate to determine the present value of lease payments. Based on the present value of lease payments for the Company's existing leases, the Company recorded net lease assets and lease liabilities of approximately $451,000, respectively, upon adoption. The Company had no&#160;finance leases. The new lease standard did not materially impact the Company's consolidated statements of operations and had no impact on the Company's consolidated statements of cash flows.</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The impact of the new lease standard on the March 31, 2019 consolidated balance sheet was as follows:   </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"/><td style="width:38.528634%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:27.955947%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:27.515419%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Classification on the Condensed Consolidated Balance Sheet</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands, except years)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating lease assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets-operating leases</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">148&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Noncurrent lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long-term operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">393&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease liabilities, net</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average remaining lease term in years</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.1</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Implicit Rate</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.8&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Operating lease costs are recognized on a straight-line basis over the lease term. Total operating lease costs for the three months ended March 31, 2019 was approximately&#160;$193,000, which included approximately $146,000&#160;related to short-term lease costs.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:73.438596%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:22.561404%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Cash paid for amounts included in the measurement of lease liabilities </span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="padding-left:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating lease cost</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(1)</sup></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">48&#160;</span></td></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">(1) Lease costs are classified on the condensed&#160;consolidated&#160;statements of income in cost of sales, cost of compressors and selling, general and administrative expenses.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The following table shows the future maturities of lease liabilities:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:70.953216%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.530994%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:24.315789%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Years Ending December 31,</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Lease Liabilities</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019 (excluding the three months ended March 31, 2019)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">134&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">116&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">95&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">43&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">35&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">190&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease payments</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">613&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Imputed interest</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">72&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr></table></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As previously disclosed&#160;on Form 10-K and under the previous lease standard (Topic 840), future minimum obligations under lease commitments in effect at December 31, 2018 as follows:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:72.853801%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:23.146199%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating Leases</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">298&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">118&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">97&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">44&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">35&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">15&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">607&#160;</span></td></tr></table></div><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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -URI http://asc.fasb.org/subtopic&amp;trid=77888251<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6756702128">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Earnings per Share<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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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_us-gaap_EarningsPerShareTextBlock', window );">Earnings per Share</a></td>
<td class="text">Earnings per Share<div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">(in thousands, except per share data)</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">:</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:70.660819%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:11.304094%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.384795%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:11.450292%;"/><td style="width:1.0%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Three months ended</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Numerator:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Net income</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">357&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for basic net income per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,064&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12,920&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for diluted net income per share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,064&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12,920&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Dilutive effect of stock options and restricted stock</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">204&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted weighted average shares</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,268&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,169&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Earnings per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Basic</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.03&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.02&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.03&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.02&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:18pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In the three months ended March 31, 2019, options to purchase 174,834 shares of common stock with exercise prices ranging from $18.75 to $33.36 were not included in the computation of diluted income per share, due to their antidilutive effect.</span></div><div style="text-indent:18pt;text-align:justify;"><span><br/></span></div><div style="text-indent:18pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In the three months ended March 31, 2018, options to purchase 83,917 shares of common stock with exercise prices ranging from $28.15 to $33.36 were not included in the computation of diluted income per share, due to their antidilutive effect.</span></div><span></span>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612319488">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Segment Information<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingAbstract', window );"><strong>Segment Reporting [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingDisclosureTextBlock', window );">Segment Information</a></td>
<td class="text">Segment Information<div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ASC 280-10-50, &#8220;Operating Segments", defines the characteristics of an operating segment as: a) being engaged in business activity from which it may earn revenue and incur expenses, b) being reviewed by the Company's chief operating decision maker (CODM) for decisions about resources to be allocated and assess its performance and c) having discrete financial information.&#160;&#160;Although we look at our products to analyze the nature of our revenue, other financial information, such as certain costs and expenses, net income and EBITDA are not captured or analyzed by these categories.&#160;&#160;Our CODM does not</span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> make resource allocation decisions or access the performance of the business based on these categories, but rather in the aggregate. Based on this, management believes that it operates in one business segment.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In their analysis of product lines as potential operating segments, management also considered ASC 280-10-50-11, &#8220;Aggregation Criteria&#8221;, which allows for the aggregation of operating segments if the segments have similar economic characteristics and if the segments are similar in each of the following areas: </span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the products and services;</span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the production processes; </span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The type or class of customer for their products and services; </span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The methods used to distribute their products or provide their services; and</span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the regulatory environment, if applicable.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.</span></div><div style="text-align:center;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"/><td style="width:44.617647%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:6.970588%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.470588%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2019 (in thousands):</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Service &amp; Maintenance</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Corporate</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,387&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,125&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">479&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,991&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">5,885&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,699&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">147&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,051&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,782&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total other income, net</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">301&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">301&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Income before provision for&#160;income taxes</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,502&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">426&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">332&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(7,750)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">510&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"/><td style="width:44.833579%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:7.720177%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:7.572901%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.371134%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="width:1.0%;"/><td style="width:7.720177%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:6.836524%;"/><td style="width:1.0%;"/></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2018 (in thousands):</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Service &amp; Maintenance</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Corporate</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11,471&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,998&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,718&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,704&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,191&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">65&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,408&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,368&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total other expense, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(76)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(76)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Income before provision for&#160;&#160;income taxes</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6,767&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">807&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">184&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(7,484)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">274&#160;</span></td></tr></table></div><span></span>
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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://fasb.org/us-gaap/role/ref/legacyRef<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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612137152">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="text">&#160;<span></span>
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<td class="text">Commitments and ContingenciesFrom time to time, we are a party to various legal proceedings in the ordinary course of our business.&#160;&#160;While management is unable to predict the ultimate outcome of these actions, it believes that any ultimate liability arising from these actions will not have a material adverse effect on our financial position, results of operations or cash flow.&#160; We are not currently a party to any material legal proceedings, and we are not aware of any threatened material litigation. The Company also has a remaining contractual obligation related to the construction of a new corporate office of approximately $3.7 million, to be financed by cash on hand. Construction of a new office began in late 2017 and is expected to be completed in mid-2019.<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -URI http://asc.fasb.org/topic&amp;trid=2127136<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6756731872">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Related Party<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</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_RelatedPartyTransactionsAbstract', window );"><strong>Related Party Transactions [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">Related Party In 2016, we entered into a joint venture partnership, N-G, LLC (&#8216;N-G&#8221;), with Genis Holdings, LLC (&#8220;Genis&#8221;) to explore new technologies for wellhead compression. NGS and Genis both share 50% ownership of N-G. In 2018, we ordered some compressor packages from Genis, totaling $1.0&#160;million. The compressors were completed by March 31, 2019. As of March 31, 2019, we have paid the units in full which has been reclassified from prepaids and is included in rental equipment on the consolidated balance sheet.<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 850<br> -URI http://asc.fasb.org/topic&amp;trid=2122745<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6766015456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BasisOfAccountingPolicyPolicyTextBlock', window );">Basis of Accounting</a></td>
<td class="text"><div style="text-indent:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These notes apply to the unaudited condensed consolidated financial statements of Natural Gas Services Group, Inc. a Colorado corporation&#160;(the "Company", &#8220;NGSG&#8221;, "Natural Gas Services Group", "we" or "our").&#160;&#160;The accompanying unaudited condensed consolidated financial statements include the accounts of the Company, its subsidiary, NGSG Properties, LLC and the rabbi trust associated with the Company's deferred compensations plan, see Note 4. All significant intercompany accounts and transactions for the periods presented have been eliminated in consolidation.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These financial statements include all adjustments, consisting of only normal recurring adjustments, which are necessary to make our financial position at March 31, 2019 and the results of our operations for the three months ended March 31, 2019&#160;and 2018 not misleading.&#160;&#160;As permitted by the rules and regulations of the Securities and Exchange Commission (SEC), the accompanying condensed consolidated financial statements do not include all disclosures normally required by generally accepted accounting principles in the United States of America (GAAP).&#160;&#160;These financial statements should be read in conjunction</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2018 on file with the SEC.&#160;&#160;In our opinion, the condensed consolidated financial statements are a fair presentation of the financial position, results of operations, changes in stockholders' equity and cash flows for the periods presented.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The results of operations for the three months ended March 31, 2019 are not necessarily indicative of the results of operations to be expected for the full fiscal year ending December 31, 2019.</span></div><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_RevenueFromContractWithCustomerPolicyTextBlock', window );">Revenue Recognition</a></td>
<td class="text"><div style="margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Revenue Recognition Policy</span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company adopted ASC 606, Revenue from Contracts with Customers ("ASC 606") on January, 1, 2018. As a result, the Company has changed its accounting policy for revenue recognition as detailed below.&#160;&#160;&#160;&#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The Company applied ASC 606 using the cumulative effect method. We had no significant changes in our recognition of revenue at adoption and our review of all open revenue from contracts with customers on January 1, 2018 indicated we had no adjustment to be made. If an adjustment had been needed, we would have recognized the cumulative effect of initially applying ASC 606 with an adjustment to the opening balance of equity at January 1, 2018.</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is measured based on a consideration specified in a customer&#8217;s contract, excluding any sale incentives and taxes collected on behalf of third parties (i.e. sales and property taxes).  We recognize revenue once a performance obligation has been satisfied and control over a product or service has transferred to the customer. Shipping and handling costs incurred are accounted for as fulfillment costs and are included in cost of revenues in our condensed consolidated income statement. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Nature of Goods and Services</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following is a description of principal activities from which the Company generates its revenue: </span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:115%;">Rental Revenue. </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company generates revenue from renting compressors and flare systems to our customers. These contracts may also include a fee for servicing the compressor or flare during the rental contract. Our rental contracts range from six to twenty-four months, with revenue  being recognized over time, in equal payments over the term of the contract. After the terms of the contract have expired, a customer may renew their contract or continue renting on a monthly basis thereafter. In accordance ASC 842 &#8211; Leases, we have applied the practical expedient ASC 842-10-15-42A, which allows the Company to combine lease and non-lease components.</span></div><div style="padding-left:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Sales Revenue.</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> The Company generates revenue by the sale of custom/fabricated compressors, flare systems and parts, as well as, exchange/rebuilding customer owned compressors and sale of used rental equipment. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Custom/fabricated compressors and flare systems - The Company designs and fabricates compressors and flares based on the customer&#8217;s specifications outlined in their contract. Though the equipment being built is customized by the customer, control under these contracts does not pass to the customer until the compressor or flare package is complete and shipped, or in accordance with a bill and hold arrangements the customer accepts title and assumes the risk and rewards of ownership. We request some of our  customers to make progressive payments as the product is being built; these payments are recorded as a contract liability on the Deferred Income line on the condensed consolidated balance sheet until control has been transferred. &#160;</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">These contracts also may include an assurance warranty clause to guarantee the product is free from defects in material and workmanship for a set duration of time; this is a standard industry practice and is not considered a performance obligation. </span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;margin-bottom:10pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">From time to time, upon the customer&#8217;s written request, we recognize revenue when manufacturing is complete and the equipment is ready for shipment. At the customer&#8217;s request, we will bill the customer upon completing all performance obligations, but before shipment. The customer will formally request we ship the equipment per their direction from our manufacturing facility at a later specified date and that we segregate the equipment from our finished goods, such that they are not available to fill other orders. Per the customer&#8217;s agreement change of control is passed to the customer once the equipment is complete and ready for shipment. We have operated using bill and hold agreements with certain customers for many years, with consistent satisfactory results for both the customer and us. The credit terms on these agreements are consistent with the credit terms on all other sales. All control is shouldered by the customer and there are no exceptions to the customer&#8217;s commitment to accept and pay for the manufactured equipment. Revenues recognized related to bill and hold arrangements for the three months ended March 31, 2019 was approximately $2.7 million.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Parts</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;"> - </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Revenue is recognized after the customer obtains control of the parts. Control is passed either by the customer taking physical possession or the parts being shipped. The amount of revenue recognized is not adjusted for expected returns, as our historical part returns have been de minimis. </span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Exchange or rebuilding customer owned compressors - Based on the contract, the Company will either exchange a new/rebuilt compressor for the customer&#8217;s malfunctioning compressor or rebuild the customer&#8217;s compressor. Revenue is recognized after control of the replacement compressor has transferred to the customer by physical delivery, delivery and installment or shipment of the compressor.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Used compressors or flares - From time to time, a customer may request to purchase a used compressor or flare out of our rental fleet. Revenue from the sale of rental equipment is recognized when the control has passed to the customer, when the customer has taken physical possession or the equipment has been shipped.</span></div><div style="padding-left:72pt;text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">Service and Maintenance Revenue</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">. The Company provides routine or call-out services on customer owned equipment. Revenue is recognized after services in the contract are rendered. </span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Payment terms for sales revenue and service and maintenance revenue discussed above are generally 30 to 60 days although terms for specific customers can vary. Also, the transaction prices are not subject to variable consideration constraints.</span></div><span></span>
</td>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_CapitalizedContractCostsPolicyPolicyTextBlock', window );">Contract Costs</a></td>
<td class="text"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Contract Costs</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160;</span>The Company applies the practical expedient  in ASC 340-40-25-4 and recognizes the incremental costs of obtaining contracts as an expense when incurred if the amortization period of the assets that the Company otherwise would have recognized is one year or less. These costs are included in selling, general and administrative expense on our consolidated income statement.<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_LesseeLeasesPolicyTextBlock', window );">Leases</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Leases</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Arial;font-size:10pt;font-weight:700;line-height:120%;">&#160;</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">On January 1, 2019, we adopted ASC 842, Leases ("ASC 842") and all the related amendments&#160;using the modified retrospective method. We recognized the cumulative effect of initially applying the new lease standard and had no adjustments to retained earnings. The comparative information has not been restated and continues to be reported under the lease accounting standard in effect for those periods. We do not expect the adoption of the new lease standard to have a material impact to our net income on an ongoing basis.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The new lease standard requires all leases to be reported on the balance sheet as right-of-use assets and lease obligations. We elected the practical expedients permitted under the transition guidance of the new standard that retained the lease classification and initial direct costs for any leases that existed prior to adoption of the standard. We did not reassess whether any contracts or land easements entered into prior to adoption are leases or contain leases.</span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"><tr><td style="width:1.0%;"/><td style="width:29.481481%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:28.864198%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Adjustments due to ASU 2016-02</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at January 1, 2019</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance Sheet</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Assets</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Liabilities</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long term portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessee, applies the practical expedient in ASC 842-10-15-37, and does not separate non-lease components from lease components, therefore, accounting for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company, as a lessor, applies the practical expedient in ASC 842-10-15-42A, in leases that contain the same timing and pattern of transfer for lease and non-lease components and are deemed operating leases, the lessor is not required to separate non-lease components from lease components. Therefore, on any lease that meets these qualifications we have chosen to account for each separate lease component and its associated non-lease component, as a single lease component. </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The Company applies the practical expedient in ASC 842-20-25-2, to recognize the lease payments in profit or loss on a straight-line basis over the lease term and variable lease payments in the period in which the obligation for those payments is incurred for leases with terms of 12 months or less.</span></div><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_FairValueOfFinancialInstrumentsPolicy', window );">Fair Value of Financial Instruments</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Fair Value of Financial Instruments</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our financial instruments consist principally of cash and cash equivalents, accounts receivable, accounts payable, deferred compensation plan (cash portion) and our line of credit.  Pursuant to ASC 820 (Accounting Standards Codification), the fair value of our cash equivalents is determined based on &#8220;Level 1&#8221; inputs, which consist of quoted prices in active markets for identical assets.  We believe that the recorded values of all of our other financial instruments approximate their fair values because of their nature (variable rate debt)  and relatively short maturity dates or durations.</span></div><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_IncomeTaxPolicyTextBlock', window );">Income Taxes</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:174%;">Income Taxes</span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As part of the process of preparing our financial statements, we are required to estimate our federal income taxes as well as income taxes in each of the states in which we operate. This process involves us estimating our actual current tax exposure together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheet. We must then assess the likelihood that our deferred tax assets will be recovered from future taxable income and, to the extent we believe that recovery is not probable, we must establish a valuation allowance. To the extent we establish a valuation allowance or increase this allowance in a period, we must include an expense in the tax provision in the statement of operations.</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">Significant management judgment is required in determining our provision for income taxes, our deferred tax assets and liabilities and any valuation allowance recorded against our net deferred tax assets. We currently have no valuation allowance and fully expect to utilize all of our deferred tax assets.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">ASC Topic 740 prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. In order to record any financial statement benefit, we are required to determine, based on technical merits of the position, whether it is more likely than not (a likelihood of more than 50 percent) that a tax position will be sustained upon examination, including resolution of any related appeals or litigation processes. If that step is satisfied, then we must measure the tax position to determine the amount of benefit to recognize in the financial statements. The tax position is measured at the largest amount of the benefit that has a greater than 50 percent likely of being realized upon ultimate settlement. &#160;</span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our policy regarding income tax interest and penalties is to expense those items as other expense.</span></div><div style="text-indent:45pt;text-align:justify;"><span><br/></span></div><div style="text-indent:45pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">During the fourth quarter of 2018, the Company discovered a potential uncertain tax position attributable to the deductibility of certain executive compensation expense for federal income tax purposes aggregating approximately $168,000, $149,000 and&#160;$230,000 for the years ended December 31, 2017, 2016 and 2015, respectively.  As a result, in accordance with ASC Topic 740, during the fourth quarter of 2018, the Company recorded a tax adjustment of $547,000 and accrued penalty and interest expense of $55,000 attributable to the uncertain tax position.  Management of the Company determined that the effect of the potential uncertain tax position on previously reported results of operations for the years ended December 31, 2017 and 2016 was not material.&#160;The Company plans on amending its previously filed federal income tax returns and is in the process of analyzing certain offsetting deductions to reduce uncertain tax position reserve.</span></div><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_PriorPeriodReclassificationAdjustmentDescription', window );">Reclassification of Prior Period Balances</a></td>
<td class="text"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:700;line-height:120%;">Reclassification of Prior Period Balances</span></div><div><span><br/></span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Certain reclassifications have been made to prior period amounts, due to our adoption of ASC 842, to conform to the current-year presentation. These reclassifications had no effect on the financial statements.</span></div><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_SegmentReportingPolicyPolicyTextBlock', window );">Segment Information</a></td>
<td class="text">ASC 280-10-50, &#8220;Operating Segments", defines the characteristics of an operating segment as: a) being engaged in business activity from which it may earn revenue and incur expenses, b) being reviewed by the Company's chief operating decision maker (CODM) for decisions about resources to be allocated and assess its performance and c) having discrete financial information.&#160;&#160;Although we look at our products to analyze the nature of our revenue, other financial information, such as certain costs and expenses, net income and EBITDA are not captured or analyzed by these categories.&#160;&#160;Our CODM does not<div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;"> make resource allocation decisions or access the performance of the business based on these categories, but rather in the aggregate. Based on this, management believes that it operates in one business segment.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">In their analysis of product lines as potential operating segments, management also considered ASC 280-10-50-11, &#8220;Aggregation Criteria&#8221;, which allows for the aggregation of operating segments if the segments have similar economic characteristics and if the segments are similar in each of the following areas: </span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the products and services;</span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the production processes; </span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The type or class of customer for their products and services; </span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The methods used to distribute their products or provide their services; and</span></div><div><span><br/></span></div><div style="text-indent:-18pt;padding-left:36pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#8226;</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;padding-left:14.5pt;">The nature of the regulatory environment, if applicable.</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">&#160; </span></div><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.</span></div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for determining the fair value of financial instruments.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for leasing arrangement entered into by lessee.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for reclassifications that affects the comparability of the financial statements.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for revenue from contract with customer.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for segment reporting.</p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6643964880">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountingPoliciesAbstract', window );"><strong>Accounting Policies [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueTableTextBlock', window );">Disaggregation of Revenue</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table shows the Company's revenue disaggregated by product or service type for the three months ended March 31, 2019 and 2018:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:68.467836%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:11.450292%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:2.239766%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.842105%;"/><td style="width:1.0%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:21pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:21pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Three months ended March 31,</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Compressors - sales</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,708&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,829&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Flares - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">435&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">522&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Other (Parts/Rebuilds) - sales</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">982&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">647&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Service and maintenance</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">479&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue from contracts with customers</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,604&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,247&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Add: non-ASC 606 rental revenue</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,387&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11,471&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,991&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,718&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><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_ContractWithCustomerAssetAndLiabilityTableTextBlock', window );">Schedule of Contract with Customer, Asset and Liability</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">As of March 31, 2019 and December 31, 2018, we had the following receivables and deferred income from contracts with customers: </span></div><div style="text-indent:18pt;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:61.157895%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:15.836257%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:2.285380%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:14.520468%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31, 2018</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Accounts Receivable</span></div></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - contracts with customers</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,484&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,250&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Accounts receivable - non-ASC 606</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,113&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">5,260&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,597&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,510&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:9.5pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Allowance for doubtful accounts</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(299)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(291)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Total Accounts Receivable, net</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,298&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,219&#160;</span></td></tr><tr><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:15pt;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:9.5pt;font-weight:400;line-height:100%;">Deferred income</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">133&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">81&#160;</span></td></tr></table></div><span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock', window );">Cumulative Effect of Changes from Adoption of ASU</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The cumulative effect of the changes made to our consolidated balance sheet at January 1, 2019, for the adoption of ASU 2016-02, Leases, was as follows (in thousands):</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:94.736842%;"><tr><td style="width:1.0%;"/><td style="width:29.481481%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:28.864198%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.880247%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.746914%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Adjustments due to ASU 2016-02</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#160;</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance at January 1, 2019</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Balance Sheet</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Assets</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">451&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Liabilities</span></td><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">126&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long term portion of operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">325&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><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_AccountingPoliciesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountingPoliciesAbstract</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: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>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of contract balances and changes in contract balances.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130551-203045<br></p></div>
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock</td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765111664">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>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, 2019</div></th></tr>
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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_us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock', window );">Summary of Option Activity</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">A summary of option activity under our 1998 Stock Option Plan  as  of December 31, 2018, and changes during the three months ended March 31, 2019 is presented below.</span></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"/><td style="width:45.128130%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.665685%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Number</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;of</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Stock Options</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Aggregate</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Intrinsic</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Value</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">283,686&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">20.46&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.58</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">434&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercised</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(56,352)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8.97&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">474&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-indent:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Canceled/Forfeited</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(2,000)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26.66&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Outstanding, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225,334&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.28&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.18</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Exercisable, March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">214,901&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.04&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.00</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:3pt double #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26&#160;</span></td></tr></table></div><span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock', window );">Summary of Stock Options Outstanding</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table summarizes information about our stock options outstanding at March 31, 2019:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"/><td style="width:38.588235%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.176471%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.323529%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" rowspan="2" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Range of Exercise Prices</span></div></td><td colspan="15" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Outstanding</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Options Exercisable</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Remaining</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Contractual</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Life (years)</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Exercise</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Price</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$0.01-15.70</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2.82</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14.89&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14.89&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$15.71-17.81</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">42,000&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1.32</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17.54&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">42,000&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17.54&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$17.82-20.48</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">50,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2.09</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">19.43&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">50,500&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">19.43&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$20.49-33.36</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">124,334&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6.08</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">27.36&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">113,901&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">27.29&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225,334&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4.18</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.28&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">214,901&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">23.04&#160;</span></td></tr></table></div><span></span>
</td>
</tr>
<tr class="ro">
<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 );">Status of Unvested Stock Options</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The summary of the status of our unvested stock options as of December 31, 2018 and changes during the three months ended&#160;March 31, 2019 is presented below.</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"/><td style="width:72.008811%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:10.628488%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.534214%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.628488%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">&#160;</span></div><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Unvested stock options:</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Shares</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Weighted Average</span></div><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Grant Date Fair Value Per Share</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at December 31, 2018</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">20,865&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Vested</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(10,432)</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr><tr><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Unvested at March 31, 2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">10,433&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11.93&#160;</span></td></tr></table></div><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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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the change in stock 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>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Inventory (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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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_ScheduleOfInventoryCurrentTableTextBlock', window );">Schedule of Inventory</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">Our inventory, net of allowance for obsolescence of &#160;$19,000 at March 31, 2019 and December 31, 2018, respectively, consisted of the following amounts:</span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.707602%;"><tr><td style="width:1.0%;"/><td style="width:61.929619%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:16.181818%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.533138%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:15.155425%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">December 31, 2018</span></td></tr><tr><td colspan="3" style="height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;font-weight:400;line-height:100%;">(in thousands)</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Raw materials - current</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">29,821&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">26,152&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Raw materials - long term, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,997&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,980&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Finished Goods</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,022&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">1,022&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Work in process</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,656&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,800&#160;</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">39,496&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">34,954&#160;</span></td></tr></table></div><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>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(c))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6361739&amp;loc=d3e7789-107766<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6753458688">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</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_LeasesAbstract', window );"><strong>Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_AssetsAndLiabilitiesLesseeTableTextBlock', window );">Schedule of Balance Sheet Impact</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The impact of the new lease standard on the March 31, 2019 consolidated balance sheet was as follows:   </span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.561404%;"><tr><td style="width:1.0%;"/><td style="width:38.528634%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:27.955947%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:27.515419%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Classification on the Condensed Consolidated Balance Sheet</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);"/></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands, except years)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating lease assets</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Right of use assets-operating leases</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Current operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">148&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Noncurrent lease liabilities</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Long-term operating leases</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">393&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease liabilities, net</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr><tr><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="height:9pt;background-color:#ffffff;text-align:left;vertical-align:bottom;border-top:3pt double #000;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average remaining lease term in years</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.1</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Implicit Rate</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:0%;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3.8&#160;</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">%</span></td></tr></table></div><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_LeaseCostTableTextBlock', window );">Schedule of Cash Flow Impact</a></td>
<td class="text"><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:73.438596%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:22.561404%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, 2019</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Cash paid for amounts included in the measurement of lease liabilities </span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="padding-left:18pt;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating lease cost</span><sup style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:6.5pt;font-weight:400;line-height:100%;vertical-align:top;">(1)</sup></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">48&#160;</span></td></tr></table></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">(1) Lease costs are classified on the condensed&#160;consolidated&#160;statements of income in cost of sales, cost of compressors and selling, general and administrative expenses.</span></div><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_LesseeOperatingLeaseLiabilityMaturityTableTextBlock', window );">Schedule of Future Maturities of Lease Liabilities</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">The following table shows the future maturities of lease liabilities:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:70.953216%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.530994%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:24.315789%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Years Ending December 31,</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Lease Liabilities</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019 (excluding the three months ended March 31, 2019)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">134&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">116&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">95&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">43&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">35&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">190&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total lease payments</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:1pt solid #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">613&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Less: Imputed interest</span></td><td colspan="3" style="background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">72&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-bottom:3pt double #000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-bottom:3pt double #000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">541&#160;</span></td></tr></table></div><span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock', window );">Schedule of Future Minimum Obligations Under Lease Commitments</a></td>
<td class="text"><div style="text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:115%;">As previously disclosed&#160;on Form 10-K and under the previous lease standard (Topic 840), future minimum obligations under lease commitments in effect at December 31, 2018 as follows:</span></div><div style="text-align:justify;"><span><br/></span></div><div style="text-align:justify;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:72.853801%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:23.146199%;"/><td style="width:1.0%;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Operating Leases</span></td></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:middle;border-top:1pt solid #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-style:italic;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(in thousands)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">298&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2020</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">118&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2021</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">97&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2022</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">44&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2023</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">35&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Thereafter</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#ffffff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">15&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:12pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000;border-bottom:3pt double #000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">607&#160;</span></td></tr></table></div><span></span>
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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>Assets And Liabilities, Lessee</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></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>Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<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">
<tr>
<td><strong> Name:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br></p></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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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6611942512">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Earnings per Share (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareAbstract', window );"><strong>Earnings Per Share [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock', window );">Schedule of Earnings Per Share, Basic and Diluted</a></td>
<td class="text"><div style="text-indent:36pt;text-align:justify;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">The following table reconciles the numerators and denominators of the basic and diluted earnings per share computation </span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-style:italic;line-height:120%;">(in thousands, except per share data)</span><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;line-height:120%;">:</span></div><div style="text-indent:36pt;text-align:justify;"><span><br/></span></div><div style="text-align:center;margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.990000%;"><tr><td style="width:1.0%;"/><td style="width:70.660819%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:11.304094%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.384795%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:11.450292%;"/><td style="width:1.0%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Three months ended</span></div></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="height:15pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="9" style="padding-top:2px;padding-bottom:2px;height:15pt;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">March 31, </span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2019</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:center;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2018</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Numerator:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Net income</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">357&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">225&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for basic net income per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,064&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12,920&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Denominator for diluted net income per share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Weighted average common shares outstanding</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,064&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">12,920&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Dilutive effect of stock options and restricted stock</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">204&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted weighted average shares</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,268&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:1pt solid #000000;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,169&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Earnings per common share:</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:3pt double #000000;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Basic</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.03&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.02&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:18pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Diluted</span></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.03&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">0.02&#160;</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr></table></div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612217632">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Segment Information (Tables)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
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<tr><th class="th"><div>Mar. 31, 2019</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SegmentReportingAbstract', window );"><strong>Segment Reporting [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock', window );">Schedule of Segment Reporting Information</a></td>
<td class="text">We are engaged in the business of designing and manufacturing compressors and flares. Our compressors and flares are sold and rented to our customers. In addition, we provide service and maintenance on compressors in our fleet and to third parties.  These business activities are similar in all geographic areas.&#160;&#160;Our manufacturing  process is essentially the same for the entire Company and is performed in-house at our facilities in Midland, Texas and Tulsa, Oklahoma.&#160;&#160;Our customers primarily consist of entities in the business of producing natural gas and crude oil.&#160;&#160;The maintenance and service of our products is consistent across the entire Company and is performed via an internal fleet of vehicles.&#160;&#160;The regulatory environment is similar in every jurisdiction in that the most impacting regulations and practices are the result of federal energy policy.&#160;&#160;In addition, the economic characteristics of each customer arrangement are similar in that we maintain policies at the corporate level.<div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.415205%;"><tr><td style="width:1.0%;"/><td style="width:44.617647%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:6.970588%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:9.470588%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.535294%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:8.000000%;"/><td style="width:1.0%;"/></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2019 (in thousands):</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Service &amp; Maintenance</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Corporate</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">13,387&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,125&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">479&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,991&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">5,885&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">3,699&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">147&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">8,051&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">17,782&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total other income, net</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">301&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">301&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Income before provision for&#160;income taxes</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,502&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">426&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">332&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(7,750)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">510&#160;</span></td></tr></table></div><div><span><br/></span></div><div style="margin-bottom:6pt;"><table style="margin-left:auto;margin-right:auto;border-collapse:collapse;text-align:left;text-indent:0pt;display:inline-table;width:99.269006%;"><tr><td style="width:1.0%;"/><td style="width:44.833579%;"/><td style="width:1.0%;"/><td style="width:1.0%;"/><td style="width:7.720177%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:7.572901%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:10.371134%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="width:1.0%;"/><td style="width:7.720177%;"/><td style="width:1.0%;"/><td style="width:0.1%;"/><td style="width:0.536377%;"/><td style="width:0.1%;"/><td style="width:1.0%;"/><td style="width:6.836524%;"/><td style="width:1.0%;"/></tr><tr><td colspan="30" style="padding-top:2px;padding-bottom:2px;height:13pt;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:700;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">For the three months ended March 31, 2018 (in thousands):</span></td><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/></tr><tr><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Rental</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Sales</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Service &amp; Maintenance</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Corporate</span></div></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div style="text-align:center;"><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Total</span></div></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Revenue</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">11,471&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,998&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">249&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;border-top:2pt solid #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;border-top:2pt solid #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,718&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Operating costs and corporate expenses</span></div></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">4,704&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">2,191&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">65&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">7,408&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">14,368&#160;</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">Total other expense, net</span></td><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">&#8212;&#160;</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(76)</span></td><td colspan="3" style="background-color:#cceeff;text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:#cceeff;text-align:right;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(76)</span></td></tr><tr><td colspan="3" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"><div><span style="background-color:rgb(255,255,255, 0.0);color:#000000;font-family:Times New Roman;font-size:10pt;font-weight:400;line-height:100%;">Income before provision for&#160;&#160;income taxes</span></div></td><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">6,767&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">807&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">184&#160;</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td colspan="3" style="display:none;"/><td colspan="3" style="display:none;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">(7,484)</span></td><td colspan="3" style="background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;padding-left:1pt;padding-right:1pt;"/><td style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:left;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-left:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">$</span></td><td colspan="2" style="padding-top:2px;padding-bottom:2px;background-color:rgb(255,255,255, 0.0);text-align:right;vertical-align:bottom;border-top:1pt solid #000000;border-bottom:3pt double #000000;padding-right:1pt;"><span style="font-size:10pt;font-weight:400;font-family:Times New Roman;color:#000000;background-color:rgb(255,255,255, 0.0);">274&#160;</span></td></tr></table></div><span></span>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6767816800">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (Narrative) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="3">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Dec. 31, 2018</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">$ 17,991<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">$ 14,718<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions', window );">Additions to tax positions of prior years</a></td>
<td class="text">&#160;<span></span>
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<td class="nump">$ 547<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued', window );">Income tax penalties and interest accrued</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">55<span></span>
</td>
<td class="text">&#160;<span></span>
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<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=ngs_BillAndHoldArrangementMember', window );">Bill and Hold Arrangement</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">$ 2,700<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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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_CapitalizedContractCostAmortizationPeriod', window );">Amortization period of capitalized contract costs</a></td>
<td class="text">1 year<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions', window );">Additions to tax positions of prior years</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">168<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_TaxPeriodAxis=us-gaap_TaxYear2016Member', window );">Tax Year 2016</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_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions', window );">Additions to tax positions of prior years</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">149<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_TaxPeriodAxis=us-gaap_TaxYear2015Member', window );">Tax Year 2015</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_EntityWideInformationRevenueFromExternalCustomerLineItems', window );"><strong>Revenue from External Customer [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions', window );">Additions to tax positions of prior years</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 230<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<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>Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 340<br> -SubTopic 40<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=68051541&amp;loc=SL49131251-203054<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CapitalizedContractCostAmortizationPeriod</td>
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<tr>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<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_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=d3e32718-109319<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_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15A<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=84230637&amp;loc=SL6600010-109319<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<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_TypeOfArrangementAxis=ngs_BillAndHoldArrangementMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=ngs_BillAndHoldArrangementMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
<td></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_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TaxPeriodAxis=us-gaap_TaxYear2017Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TaxPeriodAxis=us-gaap_TaxYear2017Member</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
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</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TaxPeriodAxis=us-gaap_TaxYear2016Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TaxPeriodAxis=us-gaap_TaxYear2016Member</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>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TaxPeriodAxis=us-gaap_TaxYear2015Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_TaxPeriodAxis=us-gaap_TaxYear2015Member</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6754897184">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (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, 2019</div></th>
<th class="th"><div>Mar. 31, 2018</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_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from contract with customer, excluding assessed tax</a></td>
<td class="nump">$ 4,604<span></span>
</td>
<td class="nump">$ 3,247<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_RentalIncomeNonoperating', window );">Add: non-ASC 606 rental revenue</a></td>
<td class="nump">13,387<span></span>
</td>
<td class="nump">11,471<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_Revenues', window );">Revenue</a></td>
<td class="nump">17,991<span></span>
</td>
<td class="nump">14,718<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_CompressorRelatedMember', window );">Compressors - sales</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from contract with customer, excluding assessed tax</a></td>
<td class="nump">2,708<span></span>
</td>
<td class="nump">1,829<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_FlaresRelatedMember', window );">Flares - sales</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
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<td class="nump">435<span></span>
</td>
<td class="nump">522<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_OtherPartsRebuildsMember', window );">Other (Parts/Rebuilds) - sales</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from contract with customer, excluding assessed tax</a></td>
<td class="nump">982<span></span>
</td>
<td class="nump">647<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember', window );">Service and maintenance</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisaggregationOfRevenueLineItems', window );"><strong>Disaggregation of Revenue [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax', window );">Revenue from contract with customer, excluding assessed tax</a></td>
<td class="nump">479<span></span>
</td>
<td class="nump">249<span></span>
</td>
</tr>
<tr class="re">
<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 );">Revenue</a></td>
<td class="nump">$ 479<span></span>
</td>
<td class="nump">$ 249<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DisaggregationOfRevenueLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DisaggregationOfRevenueLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
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<td>xbrli:stringItemType</td>
</tr>
<tr>
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<td>na</td>
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<tr>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RentalIncomeNonoperating">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RentalIncomeNonoperating</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>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130543-203045<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130539-203045<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130545-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
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<tr>
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<td>duration</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_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>credit</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_CompressorRelatedMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_CompressorRelatedMember</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_FlaresRelatedMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_FlaresRelatedMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>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_srt_ProductOrServiceAxis=ngs_OtherPartsRebuildsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_OtherPartsRebuildsMember</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>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Period Type:</strong></td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6754903936">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (Contract Balances) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Dec. 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_AccountsReceivableNetCurrentAbstract', window );"><strong>Accounts Receivable</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_ContractWithCustomerAssetNetCurrent', window );">Accounts receivable - contracts with customers</a></td>
<td class="nump">$ 3,484<span></span>
</td>
<td class="nump">$ 2,250<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_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent', window );">Accounts receivable - non-ASC 606</a></td>
<td class="nump">7,113<span></span>
</td>
<td class="nump">5,260<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_AccountsReceivableGrossCurrent', window );">Total Accounts Receivable</a></td>
<td class="nump">10,597<span></span>
</td>
<td class="nump">7,510<span></span>
</td>
</tr>
<tr class="re">
<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 );">Less: Allowance for doubtful accounts</a></td>
<td class="num">(299)<span></span>
</td>
<td class="num">(291)<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_AccountsReceivableNetCurrent', window );">Total Accounts Receivable, net</a></td>
<td class="nump">10,298<span></span>
</td>
<td class="nump">7,219<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityCurrent', window );">Deferred income</a></td>
<td class="nump">133<span></span>
</td>
<td class="nump">81<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized', window );">Revenue recognized</a></td>
<td class="nump">$ 15<span></span>
</td>
<td class="nump">$ 176<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_ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_AccountsReceivableExcludingContractsWithCustomerAssetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableGrossCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amounts 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.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(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_AccountsReceivableGrossCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsReceivableNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount 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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130549-203045<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(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_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_AccountsReceivableNetCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AccountsReceivableNetCurrentAbstract</td>
</tr>
<tr>
<td style="padding-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_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://fasb.org/us-gaap/role/ref/legacyRef<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><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.4)<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_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_ContractWithCustomerAssetNetCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130531-203044<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130533-203044<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerAssetNetCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130532-203044<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=82913815&amp;loc=SL49130531-203044<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 606<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=109196051&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ContractWithCustomerLiabilityRevenueRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<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=109196051&amp;loc=SL49130549-203045<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractWithCustomerLiabilityRevenueRecognized</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6766415808">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Basis of Presentation and Summary of Significant Accounting Policies (Cumulative Effect of Changes from Adoption of ASU) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Jan. 01, 2019</div></th>
<th class="th"><div>Dec. 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_AssetsAbstract', window );"><strong>Assets</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="nump">$ 541<span></span>
</td>
<td class="nump">$ 451<span></span>
</td>
<td class="nump">$ 0<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAbstract', window );"><strong>Liabilities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current portion of operating leases</a></td>
<td class="nump">148<span></span>
</td>
<td class="nump">126<span></span>
</td>
<td class="nump">0<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_OperatingLeaseLiabilityNoncurrent', window );">Long term portion of operating leases</a></td>
<td class="nump">$ 393<span></span>
</td>
<td class="nump">325<span></span>
</td>
<td class="nump">$ 0<span></span>
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<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_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member', window );">Accounting Standards Update 2016-02</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_AssetsAbstract', window );"><strong>Assets</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">451<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_LiabilitiesAbstract', window );"><strong>Liabilities</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current portion of operating leases</a></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="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long term portion of operating leases</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 325<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AssetsAbstract</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:stringItemType</td>
</tr>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<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_LiabilitiesAbstract</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>xbrli:stringItemType</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member</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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</html>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>40
<FILENAME>R28.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6753533952">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Compensation (Stock Option Activity) (Details) - USD ($)<br> $ / shares in Units, $ 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, 2019</div></th>
<th class="th"><div>Dec. 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward', window );"><strong>Number&#160;ofStock Options</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Outstanding, beginning of period (in shares)</a></td>
<td class="nump">283,686<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_StockIssuedDuringPeriodSharesStockOptionsExercised', window );">Exercised (in shares)</a></td>
<td class="num">(56,352)<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod', window );">Canceled/Forfeited (in shares)</a></td>
<td class="num">(2,000)<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber', window );">Outstanding, end of period (in shares)</a></td>
<td class="nump">225,334<span></span>
</td>
<td class="nump">283,686<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber', window );">Exercisable (in shares)</a></td>
<td class="nump">214,901<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward', window );"><strong>Weighted AverageExercise&#160;Price</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Outstanding, beginning of period (in USD per share)</a></td>
<td class="nump">$ 20.46<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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice', window );">Exercised (in USD per share)</a></td>
<td class="nump">8.97<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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice', window );">Canceled/Forfeited (in USD per share)</a></td>
<td class="nump">26.66<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice', window );">Outstanding, end of period (in USD per share)</a></td>
<td class="nump">23.28<span></span>
</td>
<td class="nump">$ 20.46<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice', window );">Exercisable (in USD per share)</a></td>
<td class="nump">$ 23.04<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_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract', window );"><strong>Weighted Average Remaining Contractual Life (years)</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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2', window );">Outstanding</a></td>
<td class="text">4 years 2 months 4 days<span></span>
</td>
<td class="text">3 years 6 months 29 days<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1', window );">Exercisable</a></td>
<td class="text">4 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_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsIntrinsicValueRollForward', window );"><strong>Aggregate Intrinsic Value (in thousands)</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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Outstanding, beginning of period</a></td>
<td class="nump">$ 434<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue', window );">Exercised</a></td>
<td class="nump">474<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_ngs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCanceledOrForfeitedInPeriodIntrinsicValue', window );">Canceled/Forfeited</a></td>
<td class="nump">0<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue', window );">Outstanding, end of period</a></td>
<td class="nump">26<span></span>
</td>
<td class="nump">$ 434<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1', window );">Exercisable</a></td>
<td class="nump">$ 26<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_ngs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCanceledOrForfeitedInPeriodIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Canceled Or Forfeited In Period, Intrinsic Value</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsCanceledOrForfeitedInPeriodIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsIntrinsicValueRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share-based Compensation Arrangements by Share-based Payment Award, Options, Intrinsic Value [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsIntrinsicValueRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Share-based Compensation Arrangements by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (d)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 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.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 roll forward is a reconciliation of a concept from the beginning of a period to the end of a 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward</td>
</tr>
<tr>
<td style="padding-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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward</td>
</tr>
<tr>
<td style="padding-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_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_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 could have acquired the underlying shares with respect to stock options that were terminated.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice</td>
</tr>
<tr>
<td style="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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of share options (or share units) exercised during the current period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iv)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109259400&amp;loc=d3e21463-112644<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
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<head>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6767106320">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Compensation (Stock Options Outstanding) (Details)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2019 </div>
<div>$ / shares </div>
<div>shares</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions', window );">Options outstanding, shares (in shares) | shares</a></td>
<td class="nump">225,334<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2', window );">Options outstanding, weighted average remaining contractual life (years)</a></td>
<td class="text">4 years 2 months 4 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1', window );">Options outstanding, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 23.28<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions', window );">Options exercisable, shares (in shares) | shares</a></td>
<td class="nump">214,901<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1', window );">Options exercisable, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 23.04<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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_RangeOneMember', window );">$0.01-15.70</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Range of exercise prices, lower limit (in USD per share)</a></td>
<td class="nump">0.01<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Range of exercise prices, upper limit (in USD per share)</a></td>
<td class="nump">$ 15.70<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions', window );">Options outstanding, shares (in shares) | shares</a></td>
<td class="nump">8,500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2', window );">Options outstanding, weighted average remaining contractual life (years)</a></td>
<td class="text">2 years 9 months 25 days<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1', window );">Options outstanding, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 14.89<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions', window );">Options exercisable, shares (in shares) | shares</a></td>
<td class="nump">8,500<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1', window );">Options exercisable, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 14.89<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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_RangeTwoMember', window );">$15.71-17.81</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Range of exercise prices, lower limit (in USD per share)</a></td>
<td class="nump">15.71<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Range of exercise prices, upper limit (in USD per share)</a></td>
<td class="nump">$ 17.81<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions', window );">Options outstanding, shares (in shares) | shares</a></td>
<td class="nump">42,000<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_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2', window );">Options outstanding, weighted average remaining contractual life (years)</a></td>
<td class="text">1 year 3 months 25 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1', window );">Options outstanding, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 17.54<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions', window );">Options exercisable, shares (in shares) | shares</a></td>
<td class="nump">42,000<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_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1', window );">Options exercisable, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 17.54<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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_RangeThreeMember', window );">$17.82-20.48</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Range of exercise prices, lower limit (in USD per share)</a></td>
<td class="nump">17.82<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Range of exercise prices, upper limit (in USD per share)</a></td>
<td class="nump">$ 20.48<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions', window );">Options outstanding, shares (in shares) | shares</a></td>
<td class="nump">50,500<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2', window );">Options outstanding, weighted average remaining contractual life (years)</a></td>
<td class="text">2 years 1 month 2 days<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1', window );">Options outstanding, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 19.43<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions', window );">Options exercisable, shares (in shares) | shares</a></td>
<td class="nump">50,500<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1', window );">Options exercisable, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 19.43<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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_RangeFourMember', window );">$20.49-33.36</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems', window );"><strong>Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Range of exercise prices, lower limit (in USD per share)</a></td>
<td class="nump">20.49<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Range of exercise prices, upper limit (in USD per share)</a></td>
<td class="nump">$ 33.36<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions', window );">Options outstanding, shares (in shares) | shares</a></td>
<td class="nump">124,334<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2', window );">Options outstanding, weighted average remaining contractual life (years)</a></td>
<td class="text">6 years 29 days<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1', window );">Options outstanding, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 27.36<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions', window );">Options exercisable, shares (in shares) | shares</a></td>
<td class="nump">113,901<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1', window );">Options exercisable, weighted average exercise price (in USD per share)</a></td>
<td class="nump">$ 27.29<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</div></td></tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
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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 number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions</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 ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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 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>num:perShareItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(iii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Period Type:</strong></td>
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<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 could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(1)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1</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>num:perShareItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<tr><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 of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (e)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2</td>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6766454720">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Compensation (Summary of Unvested Stock Options) (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Mar. 31, 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_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward', window );"><strong>Shares</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares', window );">Unvested, beginning of period (in shares)</a></td>
<td class="nump">20,865<span></span>
</td>
<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares', window );">Vested (in shares)</a></td>
<td class="num">(10,432)<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares', window );">Unvested, end of period (in shares)</a></td>
<td class="nump">10,433<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_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsWeightedAverageGrantDateFairValueRollForward', window );"><strong>Weighted Average Grant Date Fair Value Per Share</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Unvested, weighted average grant date fair value, beginning of period (in USD per share)</a></td>
<td class="nump">$ 11.93<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue', window );">Vested, weighted average grant date fair value (in USD per share)</a></td>
<td class="nump">11.93<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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue', window );">Unvested, weighted average grant date fair value, end of period (in USD per share)</a></td>
<td class="nump">$ 11.93<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember', window );">Stock Options</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_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsWeightedAverageGrantDateFairValueRollForward', window );"><strong>Weighted Average Grant Date Fair Value Per Share</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions', window );">Unrecognized compensation cost related to unvested options</a></td>
<td class="nump">$ 103,018<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Unrecognized compensation cost related to awards, weighted average period for recognition</a></td>
<td class="text">1 year<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 );">Share-based compensation expense</a></td>
<td class="nump">$ 30,779<span></span>
</td>
<td class="nump">$ 66,625<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 Service Share-based Compensation, Nonvested Awards, Stock Options, Outstanding [Roll Forward]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsOutstandingRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsWeightedAverageGrantDateFairValueRollForward">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 Service Share-based Compensation, Nonvested Awards, Stock Options, Weighted Average Grant Date Fair Value [Roll Forward]</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_EmployeeServiceShareBasedCompensationNonvestedAwardsStockOptionsWeightedAverageGrantDateFairValueRollForward</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Unrecognized cost of unvested options awarded to employees as compensation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 non-vested options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares</td>
</tr>
<tr>
<td style="padding-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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 grant-date fair value of non-vested options outstanding.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="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_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of options vested.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 grant-date fair value of options vested.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="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_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>
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<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6767407744">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Stock-Based Compensation (Restricted Stock) (Details) - Restricted Stock - USD ($)<br></strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 29, 2019</div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AllocatedShareBasedCompensationExpense', window );">Share-based compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 463,466<span></span>
</td>
<td class="nump">$ 361,630<span></span>
</td>
</tr>
<tr class="re">
<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 );">Total unrecognized compensation expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,600,000<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_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1', window );">Unrecognized compensation cost related to awards, vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">2 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=us-gaap_ChiefExecutiveOfficerMember', window );">Chief Executive Officer</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares)</a></td>
<td class="nump">131,674<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 );">Award vesting period</a></td>
<td class="text">3 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_TitleOfIndividualAxis=us-gaap_ChiefFinancialOfficerMember', window );">Chief Financial Officer</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares)</a></td>
<td class="nump">20,000<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Award vesting period</a></td>
<td class="text">3 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_TitleOfIndividualAxis=ngs_VicePresidentofTechnicalServicesMember', window );">Vice President of Technical Services</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares)</a></td>
<td class="nump">20,000<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_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1', window );">Award vesting period</a></td>
<td class="text">3 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_TitleOfIndividualAxis=us-gaap_DirectorMember', window );">Directors</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems', window );"><strong>Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod', window );">Grants in period (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">23,136<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 );">Award vesting period</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">1 year<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<div style="display: none;">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5047-113901<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=115993241&amp;loc=d3e301413-122809<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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>
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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>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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
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<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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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>
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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>
<td>na</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
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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 );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems</td>
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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_AwardTypeAxis=us-gaap_RestrictedStockMember</td>
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<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>
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<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>
</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>
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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>
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<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>
</tr>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TitleOfIndividualAxis=ngs_VicePresidentofTechnicalServicesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=ngs_VicePresidentofTechnicalServicesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
<td></td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
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<th class="th"><div>Mar. 31, 2019</div></th>
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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_InventoryValuationReserves', window );">Allowance for inventory obsolescence</a></td>
<td class="nump">$ 19,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 19,000<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_ngs_InventoryCurrentRawMaterialsNetofReserves', window );">Raw materials - current</a></td>
<td class="nump">29,821,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">26,152,000<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_ngs_InventoryNoncurrentRawMaterialsNetofReserves', window );">Raw materials - long term, net</a></td>
<td class="nump">3,997,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,980,000<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_InventoryFinishedGoodsNetOfReserves', window );">Finished Goods</a></td>
<td class="nump">1,022,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,022,000<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_InventoryWorkInProcessNetOfReserves', window );">Work in process</a></td>
<td class="nump">4,656,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3,800,000<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_InventoryCurrentAndNoncurrentNet', window );">Inventory, net</a></td>
<td class="nump">39,496,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 34,954,000<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_ngs_InventoryValuationReservesDeductions', window );">Write-offs of obsolete inventory against allowance</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<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_ngs_InventoryCurrentAndNoncurrentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_InventoryCurrentAndNoncurrentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_InventoryCurrentRawMaterialsNetofReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_InventoryCurrentRawMaterialsNetofReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_InventoryNoncurrentRawMaterialsNetofReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_InventoryNoncurrentRawMaterialsNetofReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_InventoryValuationReservesDeductions">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_InventoryValuationReservesDeductions</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_InventoryDisclosureAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryDisclosureAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryFinishedGoodsNetOfReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.BB)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e100047-122729<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(a)(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_InventoryFinishedGoodsNetOfReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryValuationReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of valuation reserve for inventory.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=68049868&amp;loc=d3e3927-108312<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB TOPIC 5.BB)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e100047-122729<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 4<br> -Subparagraph (SX 210.12-09)<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e24092-122690<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(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_InventoryValuationReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InventoryWorkInProcessNetOfReserves">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 5.BB)<br> -URI http://asc.fasb.org/extlink&amp;oid=27011343&amp;loc=d3e100047-122729<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(6)(a)(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_InventoryWorkInProcessNetOfReserves</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6920683888">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Deferred Compensation Plans (Details) - USD ($)<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Mar. 31, 2018</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PostemploymentBenefitsAbstract', window );"><strong>Postemployment Benefits [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent', window );">Participant's maximum compensation deferral percentage</a></td>
<td class="nump">90.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LifeInsuranceCorporateOrBankOwnedAmount', window );">Company owned life insurance</a></td>
<td class="nump">$ 1,200,000<span></span>
</td>
<td class="nump">$ 966,000<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_LifeInsuranceCorporateOrBankOwnedChangeInValue', window );">Gain (loss) on company owned life insurance</a></td>
<td class="nump">99,000<span></span>
</td>
<td class="num">(67,000)<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_DeferredCompensationArrangementWithIndividualRecordedLiability', window );">Deferred compensation obligation</a></td>
<td class="nump">$ 1,200,000<span></span>
</td>
<td class="nump">$ 992,000<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_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock', window );">Deferred restricted stock shares (in shares)</a></td>
<td class="nump">63,062<span></span>
</td>
<td class="nump">104,590<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredCompensationArrangementWithIndividualSharesIssued', window );">Deferred compensation arrangement with individual, shares issued (in shares)</a></td>
<td class="nump">78,771<span></span>
</td>
<td class="nump">32,037<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued', window );">Deferred compensation arrangement, fair value of shares issued</a></td>
<td class="nump">$ 1,700,000<span></span>
</td>
<td class="nump">$ 816,373<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_DeferredCompensationArrangementwithIndividualDeferredRestrictedStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_DeferredCompensationArrangementwithIndividualMaximumAnnualContributionsPerEmployeePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 fair value of shares issued during the period under a deferred compensation arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_DeferredCompensationArrangementWithIndividualFairValueOfSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_DeferredCompensationArrangementWithIndividualRecordedLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 710<br> -SubTopic 10<br> -Section 30<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6409875&amp;loc=d3e20015-108363<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_DeferredCompensationArrangementWithIndividualSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 pursuant to the terms of a deferred compensation arrangement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (l)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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_DeferredCompensationArrangementWithIndividualSharesIssued</td>
</tr>
<tr>
<td style="padding-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_LifeInsuranceCorporateOrBankOwnedAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.12)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 325<br> -SubTopic 30<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6384206&amp;loc=d3e41899-111602<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LifeInsuranceCorporateOrBankOwnedAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_LifeInsuranceCorporateOrBankOwnedChangeInValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 change in cash surrender or contract value during the period which adjusted the amount of premiums paid in determining the expense or income recognized under the contract for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 325<br> -SubTopic 30<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6384439&amp;loc=d3e42048-111605<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LifeInsuranceCorporateOrBankOwnedChangeInValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_PostemploymentBenefitsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PostemploymentBenefitsAbstract</td>
</tr>
<tr>
<td style="padding-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>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6754975856">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Credit Facility (Details) - Revolving Credit Facility<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, 2019 </div>
<div>USD ($) </div>
<div>loan</div>
</th>
<th class="th">
<div>Dec. 31, 2018 </div>
<div>USD ($)</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_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity', window );">Aggregate credit agreement commitment</a></td>
<td class="nump">$ 30,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity', window );">Potential increase in borrowing capacity</a></td>
<td class="nump">20,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity', window );">Potential maximum borrowing capacity</a></td>
<td class="nump">$ 50,000,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable', window );">Borrowing base, component, % of eligible accounts receivable</a></td>
<td class="nump">80.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory', window );">Borrowing base, component, % of eligible inventory</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityCurrentBorrowingCapacityAllowableShareOfTotalCommitmentAmountAttributableToGeneralInventoryComponent', window );">Borrowing base, allowable share of total commitment amount attributable to inventory component</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory', window );">Borrowing base, component, % of eligible equipment inventory</a></td>
<td class="nump">75.00%<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_LineOfCreditFacilityCurrentBorrowingCapacity', window );">Borrowing base amount available</a></td>
<td class="nump">$ 29,500,000<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_LineOfCreditFacilityInterestRateDuringPeriod', window );">Weighted average interest rate</a></td>
<td class="nump">3.75%<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_ngs_LineOfCreditFacilityDefaultTriggerCertainDefaultsOfOtherCompanyIndebtednessAmount', window );">Default trigger, certain defaults of other company indebtedness, amount</a></td>
<td class="nump">$ 50,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount', window );">Default trigger, rendering of certain judgments, amount</a></td>
<td class="nump">150,000<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_LineOfCredit', window );">Line of credit balance</a></td>
<td class="nump">$ 417,000<span></span>
</td>
<td class="nump">$ 417,000<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_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember', window );">LIBOR Rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineOfCreditFacilityReferenceRateNumberOfAllowableBorrowingsOutstanding', window );">Reference rate, number of allowable LIBOR-based borrowings outstanding | loan</a></td>
<td class="nump">3<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_DebtInstrumentBasisSpreadOnVariableRate1', window );">Variable rate, applicable margin</a></td>
<td class="nump">1.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableRateAxis=ngs_CbFloatingRateMember', window );">CB Floating Rate</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1', window );">Variable rate, applicable margin</a></td>
<td class="nump">1.50%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MinimumMember', window );">Minimum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineofCreditFacilityCommitmentCoverageRatio', window );">Minimum commitment coverage ratio allowed</a></td>
<td class="nump">2.00<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MaximumMember', window );">Maximum</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityLineItems', window );"><strong>Line of Credit Facility [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LineofCreditFacilityLeverageRatio', window );">Maximum leverage ratio allowed</a></td>
<td class="nump">2.50<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_LineOfCreditFacilityCurrentBorrowingCapacityAllowableShareOfTotalCommitmentAmountAttributableToGeneralInventoryComponent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityCurrentBorrowingCapacityAllowableShareOfTotalCommitmentAmountAttributableToGeneralInventoryComponent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleAccountsReceivable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleEquipmentInventory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityCurrentBorrowingCapacityComponentPercentageOfEligibleGeneralInventory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_ngs_LineOfCreditFacilityDefaultTriggerCertainDefaultsOfOtherCompanyIndebtednessAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityDefaultTriggerCertainDefaultsOfOtherCompanyIndebtednessAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityDefaultTriggerRenderingOfCertainJudgmentsAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityPotentialIncreaseInBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityPotentialMaximumBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ngs_LineOfCreditFacilityReferenceRateNumberOfAllowableBorrowingsOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineOfCreditFacilityReferenceRateNumberOfAllowableBorrowingsOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:integerItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_LineofCreditFacilityCommitmentCoverageRatio">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineofCreditFacilityCommitmentCoverageRatio</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_ngs_LineofCreditFacilityLeverageRatio">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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;">ngs_LineofCreditFacilityLeverageRatio</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:pureItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</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_LineOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_LineOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(b),22(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_LineOfCreditFacilityCurrentBorrowingCapacity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The effective interest rate during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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_LineOfCreditFacilityInterestRateDuringPeriod</td>
</tr>
<tr>
<td style="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_LineOfCreditFacilityLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LineOfCreditFacilityLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(b),22(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=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_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableRateAxis=ngs_CbFloatingRateMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=ngs_CbFloatingRateMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MinimumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>47
<FILENAME>R35.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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6766229136">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases (Narrative) (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, 2019</div></th>
<th class="th"><div>Jan. 01, 2019</div></th>
<th class="th"><div>Dec. 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_LesseeLeaseDescriptionLineItems', window );"><strong>Lessee, Lease, Description [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="nump">$ 541<span></span>
</td>
<td class="nump">$ 451<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Operating lease, liability</a></td>
<td class="nump">541<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_LeaseCost', window );">Lease costs</a></td>
<td class="nump">193<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_ShortTermLeaseCost', window );">Short-term lease cost</a></td>
<td class="nump">$ 146<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_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member', window );">Accounting Standards Update 2016-02</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_LesseeLeaseDescriptionLineItems', window );"><strong>Lessee, Lease, Description [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">451<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_OperatingLeaseLiability', window );">Operating lease, liability</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 451<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MinimumMember', window );">Minimum</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_LesseeLeaseDescriptionLineItems', window );"><strong>Lessee, Lease, Description [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LesseeOperatingLeaseRemainingLeaseTerm', window );">Remaining lease term</a></td>
<td class="text">1 year<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_RangeAxis=srt_MaximumMember', window );">Maximum</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_LesseeLeaseDescriptionLineItems', window );"><strong>Lessee, Lease, Description [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_ngs_LesseeOperatingLeaseRemainingLeaseTerm', window );">Remaining lease term</a></td>
<td class="text">10 years<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_ngs_LesseeOperatingLeaseRemainingLeaseTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Lessee, Operating Lease, Remaining Lease Term</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">ngs_LesseeOperatingLeaseRemainingLeaseTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>ngs_</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_LeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lease cost recognized by lessee for lease contract.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=77888399&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeLeaseDescriptionLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeLeaseDescriptionLineItems</td>
</tr>
<tr>
<td style="padding-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_OperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShortTermLeaseCost">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of short-term lease cost, excluding expense for lease with term of one month or less.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=77888399&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShortTermLeaseCost</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201602Member</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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MinimumMember</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
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<td><strong> Balance Type:</strong></td>
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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_srt_RangeAxis=srt_MaximumMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_RangeAxis=srt_MaximumMember</td>
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<head>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6753277824">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Leases (Balance Sheet Impact) (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Mar. 31, 2019</div></th>
<th class="th"><div>Jan. 01, 2019</div></th>
<th class="th"><div>Dec. 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_LeasesAbstract', window );"><strong>Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseRightOfUseAsset', window );">Right of use assets</a></td>
<td class="nump">$ 541<span></span>
</td>
<td class="nump">$ 451<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityCurrent', window );">Current operating leases</a></td>
<td class="nump">148<span></span>
</td>
<td class="nump">126<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiabilityNoncurrent', window );">Long-term operating leases</a></td>
<td class="nump">393<span></span>
</td>
<td class="nump">$ 325<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Total lease liabilities, net</a></td>
<td class="nump">$ 541<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_OperatingLeaseWeightedAverageRemainingLeaseTerm1', window );">Weighted average remaining lease term in years</a></td>
<td class="text">3 years 1 month 6 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent', window );">Implicit Rate</a></td>
<td class="nump">3.80%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LeasesAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli: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_OperatingLeaseLiability">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiability</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseLiabilityNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseLiabilityNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseRightOfUseAsset">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's right to use underlying asset under operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseRightOfUseAsset</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average discount rate for operating lease calculated at point in time.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(4)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br><br>Reference 2: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=77888399&amp;loc=SL77918982-209971<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<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_OperatingLeaseWeightedAverageRemainingLeaseTerm1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 55<br> -Paragraph 53<br> -URI http://asc.fasb.org/extlink&amp;oid=77888399&amp;loc=SL77918982-209971<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(3)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>R37.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
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<body>
<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612467184">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Leases (Cash Flow Impact) (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
</tr>
<tr><th class="th">
<div>Mar. 31, 2019 </div>
<div>USD ($)</div>
</th></tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeasesAbstract', window );"><strong>Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasePayments', window );">Operating lease cost</a></td>
<td class="nump">$ 48<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_LeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LeasesAbstract</td>
</tr>
<tr>
<td style="padding-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_OperatingLeasePayments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 5<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918643-209977<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 4<br> -Subparagraph (g)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918686-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasePayments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6756637472">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Leases (Future Maturities of Lease Liabilities) (Details)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Mar. 31, 2019 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeasesAbstract', window );"><strong>Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear', window );">2019 (excluding the three months ended March 31, 2019)</a></td>
<td class="nump">$ 134<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo', window );">2020</a></td>
<td class="nump">116<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree', window );">2021</a></td>
<td class="nump">95<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour', window );">2022</a></td>
<td class="nump">43<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive', window );">2023</a></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_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive', window );">Thereafter</a></td>
<td class="nump">190<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue', window );">Total lease payments</a></td>
<td class="nump">613<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount', window );">Less: Imputed interest</a></td>
<td class="nump">72<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeaseLiability', window );">Operating lease, liability</a></td>
<td class="nump">$ 541<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_LeasesAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LeasesAbstract</td>
</tr>
<tr>
<td style="padding-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_LesseeOperatingLeaseLiabilityPaymentsDue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_LesseeOperatingLeaseLiabilityPaymentsDueYearFive">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=77888426&amp;loc=SL77918701-209980<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount</td>
</tr>
<tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Present value of lessee's discounted obligation for lease payments from operating lease.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 842<br> -SubTopic 20<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=77888419&amp;loc=SL77918627-209977<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6611925808">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Leases (Future Minimum Obligations Under Lease Commitments) (Details)<br> $ in Thousands</strong></div></th>
<th class="th">
<div>Dec. 31, 2018 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LeasesAbstract', window );"><strong>Leases [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent', window );">2019</a></td>
<td class="nump">$ 298<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears', window );">2020</a></td>
<td class="nump">118<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_OperatingLeasesFutureMinimumPaymentsDueInThreeYears', window );">2021</a></td>
<td class="nump">97<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears', window );">2022</a></td>
<td class="nump">44<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears', window );">2023</a></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_OperatingLeasesFutureMinimumPaymentsDueThereafter', window );">Thereafter</a></td>
<td class="nump">15<span></span>
</td>
</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_OperatingLeasesFutureMinimumPaymentsDue', window );">Total</a></td>
<td class="nump">$ 607<span></span>
</td>
</tr>
</table>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br></p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<td>instant</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br></p></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>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br></p></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>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears</td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br></p></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>
<td style="white-space:nowrap;">us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears</td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after 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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 20<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=77902758&amp;loc=d3e41502-112717<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 840<br> -SubTopic 10<br> -Section 55<br> -Paragraph 40<br> -Subparagraph (Note 3)<br> -URI http://asc.fasb.org/extlink&amp;oid=82846649&amp;loc=d3e38371-112697<br></p></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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6755536320">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Earnings per Share (Basic and Diluted) (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Mar. 31, 2019</div></th>
<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_NetIncomeLossAbstract', window );"><strong>Numerator:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net income</a></td>
<td class="nump">$ 357<span></span>
</td>
<td class="nump">$ 225<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract', window );"><strong>Denominator for basic net income per common share:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Weighted average common shares outstanding (in shares)</a></td>
<td class="nump">13,064,000<span></span>
</td>
<td class="nump">12,920,000<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_WeightedAverageNumberOfSharesOutstandingAbstract', window );"><strong>Denominator for diluted net income per share:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements', window );">Dilutive effect of stock options and restricted stock (in shares)</a></td>
<td class="nump">204,000<span></span>
</td>
<td class="nump">249,000<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_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted weighted average shares (in shares)</a></td>
<td class="nump">13,268,000<span></span>
</td>
<td class="nump">13,169,000<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>Earnings per common 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_EarningsPerShareBasic', window );">Basic (in USD per share)</a></td>
<td class="nump">$ 0.03<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareDiluted', window );">Diluted (in USD per share)</a></td>
<td class="nump">$ 0.03<span></span>
</td>
<td class="nump">$ 0.02<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Number of shares not included in the computation of dilutive income per share (in shares)</a></td>
<td class="nump">174,834<span></span>
</td>
<td class="nump">83,917<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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_AntidilutiveEffectMember', window );">Antidilutive Effect</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_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems', window );"><strong>Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit', window );">Exercise price of shares not included in the computation of dilutive income per share, lower limit (in USD per share)</a></td>
<td class="nump">$ 18.75<span></span>
</td>
<td class="nump">$ 28.15<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit', window );">Exercise price of shares not included in the computation of dilutive income per share, upper limit (in USD per share)</a></td>
<td class="nump">$ 33.36<span></span>
</td>
<td class="nump">$ 33.36<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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=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_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1337-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=109256448&amp;loc=d3e4984-109258<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1252-109256<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=SL5780133-109256<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_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_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_EarningsPerShareDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/exampleRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 55<br> -Paragraph 52<br> -URI http://asc.fasb.org/extlink&amp;oid=109256448&amp;loc=d3e4984-109258<br><br>Reference 2: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1252-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 5: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 6: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1337-109256<br><br>Reference 7: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(21))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 8: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 60B<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=SL5780133-109256<br><br>Reference 9: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(19))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_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://fasb.org/us-gaap/role/ref/legacyRef<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=109260490&amp;loc=d3e1500-109256<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<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_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/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1A<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669619-108580<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1B<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=114867106&amp;loc=SL7669625-108580<br><br>Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=109223946&amp;loc=d3e3602-108585<br><br>Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -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_NetIncomeLoss</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>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NetIncomeLossAbstract</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:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (g)<br> -URI http://asc.fasb.org/extlink&amp;oid=109197908&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>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_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://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=109260490&amp;loc=d3e1505-109256<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<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_WeightedAverageNumberOfSharesOutstandingAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract</td>
</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:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</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_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://fasb.org/us-gaap/role/ref/legacyRef<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=109260490&amp;loc=d3e1448-109256<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 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_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>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td>xbrli:stringItemType</td>
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<td><strong> Balance Type:</strong></td>
<td>na</td>
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<td><strong> Period Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_AntidilutiveEffectMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis=ngs_AntidilutiveEffectMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6765899776">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Segment Information (Details)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
</tr>
<tr>
<th class="th">
<div>Mar. 31, 2019 </div>
<div>USD ($) </div>
<div>segment</div>
</th>
<th class="th">
<div>Mar. 31, 2018 </div>
<div>USD ($)</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NumberOfOperatingSegments', window );">Number of operating segments | segment</a></td>
<td class="nump">1<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 );">Revenue</a></td>
<td class="nump">$ 17,991<span></span>
</td>
<td class="nump">$ 14,718<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Operating costs and corporate expenses</a></td>
<td class="nump">17,782<span></span>
</td>
<td class="nump">14,368<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">301<span></span>
</td>
<td class="num">(76)<span></span>
</td>
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<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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">510<span></span>
</td>
<td class="nump">274<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember', window );">Corporate</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Operating costs and corporate expenses</a></td>
<td class="nump">8,051<span></span>
</td>
<td class="nump">7,408<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">301<span></span>
</td>
<td class="num">(76)<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_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="num">(7,750)<span></span>
</td>
<td class="num">(7,484)<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_RentalMember', window );">Rental</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">13,387<span></span>
</td>
<td class="nump">11,471<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Operating costs and corporate expenses</a></td>
<td class="nump">5,885<span></span>
</td>
<td class="nump">4,704<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">7,502<span></span>
</td>
<td class="nump">6,767<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_SalesServiceLineMember', window );">Sales</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">4,125<span></span>
</td>
<td class="nump">2,998<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Operating costs and corporate expenses</a></td>
<td class="nump">3,699<span></span>
</td>
<td class="nump">2,191<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">426<span></span>
</td>
<td class="nump">807<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember', window );">Service and maintenance</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_SegmentReportingInformationLineItems', window );"><strong>Segment Reporting Information [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenue</a></td>
<td class="nump">479<span></span>
</td>
<td class="nump">249<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsAndExpenses', window );">Operating costs and corporate expenses</a></td>
<td class="nump">147<span></span>
</td>
<td class="nump">65<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NonoperatingIncomeExpense', window );">Total other income (expense), net</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">0<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest', window );">Income before provision for income taxes</a></td>
<td class="nump">$ 332<span></span>
</td>
<td class="nump">$ 184<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_CostsAndExpenses">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs of sales and operating expenses for the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsAndExpenses</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 940<br> -SubTopic 20<br> -Section 25<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=68072869&amp;loc=d3e41242-110953<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(10))<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873790&amp;loc=SL114874131-224263<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 250<br> -SubTopic 10<br> -Section 50<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=109234566&amp;loc=d3e22694-107794<br><br>Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 220<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(15))<br> -URI http://asc.fasb.org/extlink&amp;oid=114873765&amp;loc=SL114874048-224260<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NonoperatingIncomeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.7)<br> -URI http://asc.fasb.org/extlink&amp;oid=115205541&amp;loc=SL114868664-224227<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NonoperatingIncomeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NumberOfOperatingSegments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning 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_NumberOfOperatingSegments</td>
</tr>
<tr>
<td style="padding-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_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br><br>Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<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=115205541&amp;loc=SL114868664-224227<br><br>Reference 3: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 32<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8933-108599<br><br>Reference 4: http://www.xbrl.org/2003/role/disclosureRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 280<br> -SubTopic 10<br> -Section 50<br> -Paragraph 22<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=115929826&amp;loc=d3e8736-108599<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_SegmentReportingInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SegmentReportingInformationLineItems</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_RentalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_RentalMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_SalesServiceLineMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_SalesServiceLineMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">srt_ProductOrServiceAxis=ngs_ServiceandMaintenanceMember</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;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612465744">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Commitments and Contingencies (Details)<br> $ in Millions</strong></div></th>
<th class="th">
<div>Mar. 31, 2019 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommitmentsAndContingenciesDisclosureAbstract', window );"><strong>Commitments and Contingencies Disclosure [Abstract]</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractualObligation', window );">Contractual obligation</a></td>
<td class="nump">$ 3.7<span></span>
</td>
</tr>
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<div style="display: none;">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- 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_CommitmentsAndContingenciesDisclosureAbstract</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<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_ContractualObligation">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></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 contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ContractualObligation</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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<span style="display: none;">v3.19.1</span><table class="report" border="0" cellspacing="2" id="idp6612400576">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Related Party (Narrative) (Details) - Corporate Joint Venture - USD ($)<br> $ in Millions</strong></div></th>
<th class="th" colspan="2">12 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Dec. 31, 2018</div></th>
<th class="th"><div>Dec. 31, 2016</div></th>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="ro">
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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_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember', window );">N-G, LLC</a></td>
<td class="text">&#160;<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_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">50.00%<span></span>
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<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember', window );">Genis Holdings, LLC | N-G, LLC</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RelatedPartyTransactionLineItems', window );"><strong>Related Party Transaction [Line Items]</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="nump">50.00%<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 272<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6373374&amp;loc=d3e70478-108055<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
