<SEC-DOCUMENT>0001171843-16-012746.txt : 20161031
<SEC-HEADER>0001171843-16-012746.hdr.sgml : 20161031
<ACCEPTANCE-DATETIME>20161031162621
ACCESSION NUMBER:		0001171843-16-012746
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		61
CONFORMED PERIOD OF REPORT:	20160930
FILED AS OF DATE:		20161031
DATE AS OF CHANGE:		20161031

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STERLING CONSTRUCTION CO INC
		CENTRAL INDEX KEY:			0000874238
		STANDARD INDUSTRIAL CLASSIFICATION:	HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600]
		IRS NUMBER:				251655321
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31993
		FILM NUMBER:		161961940

	BUSINESS ADDRESS:	
		STREET 1:		2751 CENTERVILLE RD.
		STREET 2:		SUITE 3131
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19803
		BUSINESS PHONE:		3024789170

	MAIL ADDRESS:	
		STREET 1:		20810 FERNBUSH LANE
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77073

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OAKHURST CO INC
		DATE OF NAME CHANGE:	19950831

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OAKHURST CAPITAL INC
		DATE OF NAME CHANGE:	19931130
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>f10q_103116p.htm
<DESCRIPTION>FORM 10-Q
<TEXT>
<HTML><HEAD>
     <TITLE></TITLE>
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<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><b>UNITED STATES</b></p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><b>SECURITIES AND EXCHANGE COMMISSION</b></p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><b>Washington, D.C. 20549</b></p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><b>&nbsp;</b></p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><b>FORM 10-Q</b></p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</p>

<p style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt; text-align: center">(Mark one)</p>

<table cellspacing="0" cellpadding="0" style="font-size: 10pt; width: 100%; border-collapse: collapse">
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2" style="text-decoration: none; text-align: justify; text-indent: 0.25in; font-size: 10pt"><b>[X] <font style="font-variant: small-caps">&nbsp;QUARTERLY REPORT PURSUANT TO SECTION</font> <font style="font-size: 10pt">13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</font></b></td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For the quarterly period ended: September
        30, 2016</p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Or</p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2" style="text-align: justify; text-indent: 0.25in; font-size: 10pt"><b>[&nbsp;&nbsp;&nbsp;]&nbsp;TRANSITION REPORT PURSUANT TO SECTION <font style="font-size: 10pt">13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</font></b></td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For the transition period from___
        to ___</p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Commission file number <b>1-31993</b></p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
        INC.</b></p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Exact name of registrant as specified
        in its charter)</p>
        <p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
<tr style="vertical-align: top">
    <td style="width: 50%; text-align: center; text-indent: 0.25in; font-size: 10pt"><b>DELAWARE</b></td>
    <td style="width: 50%; text-align: center; text-indent: 0.25in; font-size: 10pt"><b>25-1655321</b></td></tr>
<tr style="vertical-align: top">
    <td>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt">State or other jurisdiction of incorporation</p>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt">or organization</p></td>
    <td>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt">(I.R.S. Employer</p>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt">Identification No.)</p></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td>
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt"><b>1800 Hughes Landing Blvd.</b></p>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt"><b>The Woodlands, Texas</b></p></td>
    <td>
        <p style="font-size: 10pt; text-align: justify; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt">&nbsp;</p>
        <p style="font-size: 10pt; text-align: center; margin-top: 0pt; margin-bottom: 0pt; margin-left: 0pt"><b>77380</b></p></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: center; text-indent: 0.25in; font-size: 10pt">(Address of principal executive office)</td>
    <td style="text-align: center; text-indent: 0.25in; font-size: 10pt">(Zip Code)</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td>
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td colspan="2" style="text-align: center; font-size: 10pt">Registrant&#8217;s telephone number, including area code&nbsp;&nbsp;<b>(281) 214-0800</b></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td>
    <td style="text-align: justify; text-indent: 0.25in; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td colspan="2" style="text-align: center; font-size: 10pt">(Former name, former address and former fiscal year, if changed from last report)</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: center; text-indent: 0.25in; font-size: 10pt">&nbsp;</td>
    <td style="text-align: center; text-indent: 0.25in; font-size: 10pt">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">Indicate by check mark whether the
        registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
        the preceding 12 months (or for such shorter period that the registrant was required to file such reports) and (2) has been subject
        to such filing requirements for the past 90 days.</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">[&#8730;] Yes [ ] No</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>
        <p style="font-size: 10pt; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0in">Indicate by check mark whether the
        registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be
        submitted and posted pursuant to Rule 405 of Regulation S-T (&#167;232.405 of this chapter) during the preceding 12 months (or
        for such shorter period that the registrant was required to submit and post such files). [&#8730;] Yes [ ] No</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2" style="text-align: justify; text-indent: 0in; font-size: 10pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):</td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">Large accelerated filer [ ] &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Accelerated
        filer [&#8730;]</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">Non-accelerated filer [ ] &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Smaller
        reporting company [ ]</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">(Do not check if a smaller reporting
        company)</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2">
        <p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">Indicate by check mark whether the
        registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). [ ] Yes [&#8730;] No</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
<tr style="vertical-align: top">
    <td colspan="2"><p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">At October 28, 2016, there
        were 25,002,964 shares outstanding of the issuer&#8217;s common stock, par value $0.01 per share.</p>
        <p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p></td></tr>
</table>
<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><B>STERLING CONSTRUCTION COMPANY,
INC.</B></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>QUARTERLY REPORT ON FORM 10-Q
</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>TABLE OF CONTENTS</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; font-variant: small-caps; font-weight: bold; text-align: left; margin-top: 0pt; margin-bottom: 0pt"></p>

<p style="font-size: 10pt; text-align: justify; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</p>



<table cellpadding="3" cellspacing="3" style="width: 100%">
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p1">PART
I. FINANCIAL INFORMATION</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="width: 90%; text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i1">Item 1.&nbsp; Financial Statements</a></td>
    <td style="width: 10%; text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i1">3</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i2">Item 2.&nbsp; Management&#8217;s Discussion and Analysis of Financial Condition and Results of Operations</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i2">18</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i3">Item 3.&nbsp; Quantitative and Qualitative Disclosures about Market Risk</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i3">26</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i4">Item 4.&nbsp; Controls and Procedures</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p1i4">26</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><b>&nbsp;</b></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2">PART II. OTHER INFORMATION</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><b>&nbsp;</b></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i1">Item 1.&nbsp; Legal Proceedings</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i1">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i1a">Item 1A.&nbsp; Risk Factors</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i1a">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i2">Item 2.&nbsp; Unregistered Sales of Equity Securities and Use of Proceeds</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i2">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i3">Item 3.&nbsp; Defaults upon Senior Securities</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i3">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i4">Item 4.&nbsp; Mine Safety Disclosures</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i4">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i5">Item 5.&nbsp; Other Information</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i5">27</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i6">Item 6.&nbsp; Exhibits</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#p2i6">28</a></td></tr>
<tr style="text-align: left; vertical-align: bottom; font: 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><b>&nbsp;</b></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt">&nbsp;</td></tr>
<tr style="text-align: left; vertical-align: bottom; font: small-caps bold 10pt Times New Roman, Times, Serif">
    <td style="text-align: left; padding-top: 0in; padding-bottom: 0pt"><a href="#sign">SIGNATURES</a></td>
    <td style="text-align: right; padding-top: 0in; padding-bottom: 0pt"><a href="#sign">29</a></td></tr>
</table>
<p style="font-size: 10pt; text-align: justify; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; margin-top: 0pt; margin-bottom: 0pt"></p>

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<p style="font-size: 10pt; text-align: justify; margin-top: 0pt; margin-bottom: 0pt"><a name="p1"></a><b>PART I</b></p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><a name="p1i1"></a>Item 1. Financial
Statements</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC. &amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>CONDENSED CONSOLIDATED BALANCE
SHEETS</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>(Amounts in thousands, except
share and per share data)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table="" data-td-statement-type="balance-sheet"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">September 30,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2016</p></td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">December 31,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2015</p></td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: center">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: center">(Unaudited)</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; font-weight: bold; text-align: center">ASSETS</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Current assets:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt">Cash and cash equivalents 	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">43,021</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">4,426</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Contracts receivable, including retainage	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">105,415</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">82,112</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Costs and estimated earnings in excess of billings on uncompleted contracts	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">31,989</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">26,905</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Inventories	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,000</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,535</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Receivables from and equity in construction joint ventures	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">9,469</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">12,930</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current assets	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">6,170</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">6,013</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current assets	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">200,064</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">134,921</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Property and equipment, net	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">70,363</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">73,475</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Goodwill	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">54,820</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">54,820</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Other assets, net	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,968</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,949</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total assets	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">328,215</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">266,165</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; font-weight: bold; text-align: center">LIABILITIES AND EQUITY</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Current liabilities:	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accounts payable	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">76,861</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">58,959</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Billings in excess of costs and estimated earnings on uncompleted contracts	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">61,896</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">30,556</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Current maturities of long-term debt	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,653</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,856</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Income taxes payable	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">63</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">67</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accrued compensation	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">10,412</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,977</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">5,545</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,896</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 20pt">Total current liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">159,430</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">104,311</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Long-term liabilities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Long-term debt, net of current maturities		</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">6,952</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">15,324</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt; text-indent: -10pt">Member&#8217;s interest subject to mandatory redemption and undistributed earnings	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">46,466</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">50,438</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other long-term liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">911</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">338</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 20pt">Total long-term liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">54,329</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">66,100</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Commitments and contingencies (Note 5)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Equity:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Sterling stockholders&#8217; equity:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt; text-indent: -10pt">Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt; text-indent: -10pt">Common stock, par value $0.01 per share; 28,000,000 shares authorized, 25,002,964 and 19,753,170 shares issued	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">250</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">198</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Additional paid in capital	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">208,435</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">188,147</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Retained deficit	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(95,390</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(92,500</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total Sterling common stockholders&#8217; equity	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">113,295</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">95,845</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Noncontrolling interests	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,161</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(91</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 20pt">Total equity	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">114,456</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">95,754</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total liabilities and equity	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">328,215</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">266,165</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>


<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The accompanying notes are an
integral part of these condensed consolidated financial statements.</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC. &amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>CONDENSED CONSOLIDATED STATEMENTS
OF OPERATIONS</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>(Amounts in thousands, except
share and per share data)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Unaudited)</p>

<p style="font-size: 10pt; font-variant: small-caps; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><font style="font-variant: normal">&nbsp;</font></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table="" data-td-statement-type="income"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br>September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 0in">Revenues	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">205,629</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">176,000</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">521,778</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">471,107</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Cost of revenues	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(188,597</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(161,542</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(484,827</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(454,374</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0.2in">Gross profit 	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">17,032</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">14,458</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">36,951</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">16,733</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">General and administrative expenses	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(9,575</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(11,119</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(29,221</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(32,320</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Other operating income (expense), net	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,785</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(958</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(7,143</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,128</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0.2in">Operating income (loss)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,672</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,381</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">587</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(14,459</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Interest income	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">15</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">32</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">464</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Interest expense	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(491</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,087</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(2,176</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(2,103</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Loss on extinguishment of debt	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(240</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt; text-indent: -10pt">Income (loss) before income taxes and earnings attributable to noncontrolling interests 	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,196</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,326</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,570</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(16,338</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Income tax (expense) benefit	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(41</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">39</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(68</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">8</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Net income (loss)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,155</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,365</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,638</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(16,330</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 10pt; text-indent: -10pt">Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(740</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,109</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,252</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(2,948</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt">Net income (loss) attributable to Sterling common stockholders	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">2,415</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">256</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(2,890</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(19,278</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt; text-indent: -10pt">Net income (loss) per share attributable to Sterling common stockholders:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 16.1pt">Basic and diluted</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">0.10</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">0.01</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">(0.12</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">(1.00</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0.2in">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt; text-indent: -10pt">Weighted average number of common shares outstanding used in computing per share amounts:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 6.1pt">Basic </td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">25,002,964</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,627,674</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">23,914,688</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,269,123</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 6.1pt">Diluted</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">25,364,881</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,627,674</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">23,914,688</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,269,123</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The accompanying notes are an
integral part of these condensed consolidated financial statements.</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC. &amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>CONDENSED CONSOLIDATED STATEMENTS
OF COMPREHENSIVE INCOME (LOSS)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>(Amounts in thousands)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Unaudited)</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table="" data-td-statement-type="comprehensive-income"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: center">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br>September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: center">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 48%; font-size: 10pt; text-align: justify">Net income (loss) attributable to Sterling common stockholders	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">2,415</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">256</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">(2,890</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">(19,278</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Net income attributable to noncontrolling interests included in equity	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">740</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,109</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,252</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,948</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Other comprehensive income (loss), net of tax:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Realized loss from settlement of derivatives	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">24</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">107</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt">Change in the effective portion of unrealized loss in fair market value of derivatives	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(6</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(6</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt">Comprehensive income (loss)	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">3,155</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">1,383</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(1,638</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(16,229</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The accompanying notes are an
integral part of these condensed consolidated financial statements.</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b></b></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC. &amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>CONDENSED CONSOLIDATED STATEMENT
OF CHANGES IN EQUITY</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>FOR THE NINE MONTHS ENDED SEPTEMBER
30, 2016</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>(Amounts in thousands)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Unaudited)</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table="" data-td-statement-type="stockholders-equity"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="15" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">STERLING CONSTRUCTION COMPANY, INC. STOCKHOLDERS</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; text-align: justify">&nbsp;</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Common Stock</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; padding-bottom: 1pt">Additional <br>Paid in</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; padding-bottom: 1pt">Retained</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; padding-bottom: 1pt"><p style="margin-top: 0; margin-bottom: 0">Noncon-</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">trolling</p></td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Shares</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Amount</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Capital</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Deficit</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Interests</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Total</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 34%; font-size: 10pt; text-align: left; text-indent: 0in">Balance at January 1, 2016	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 8%; font-size: 10pt; text-align: right">19,753</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 8%; font-size: 10pt; text-align: right">198</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 8%; font-size: 10pt; text-align: right">188,147</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 8%; font-size: 10pt; text-align: right">(92,500</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 8%; font-size: 10pt; text-align: right">(91</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 8%; font-size: 10pt; text-align: right">95,754</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Net income (loss)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(2,890</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,252</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,638</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left">Stock-based compensation	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">79</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,211</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,211</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt; text-indent: -10pt">Stock issued in equity offering, net of expense	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,175</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">52</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,090</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,142</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Other	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(13</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(13</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 0in">Balance at September 30, 2016	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">25,003</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">250</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">208,435</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(95,390</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">1,161</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">114,456</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The accompanying notes are an
integral part of these condensed consolidated financial statements.</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b></b></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY, INC.
&amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b>CONDENSED CONSOLIDATED STATEMENTS
OF CASH FLOWS</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>(Amounts in thousands)</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Unaudited)</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table="" data-td-statement-type="cash-flows"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: center">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">Nine Months Ended</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">September 30,</p></td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: center">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Cash flows from operating activities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 70%; font-size: 10pt; text-align: justify">Net loss attributable to Sterling common stockholders	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">(2,890</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">(19,278</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Plus: Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,252</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,948</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Net loss	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,638</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(16,330</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Adjustments to reconcile net loss to net cash provided by (used in) operating activities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Depreciation and amortization	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">12,097</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">12,479</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Gain on disposal of property and equipment	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(255</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,205</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Stock-based compensation expense	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,211</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,319</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Loss on extinguishment of debt	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">240</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Changes in operating assets and liabilities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Contracts receivable	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(23,303</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(20,770</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Costs and estimated earnings in excess of billings on uncompleted contracts	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(5,084</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">10,116</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Inventories	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,465</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,821</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Receivables from and equity in construction joint ventures	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,461</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,936</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Other assets	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,246</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">9,318</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accounts payable	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">17,902</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">7,291</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Billings in excess of costs and estimated earnings on uncompleted contracts	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">31,340</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">7,400</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accrued compensation and other liabilities	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">6,662</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,230</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Member&#8217;s interest subject to mandatory redemption and undistributed earnings</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,972</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,101</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Net cash provided by operating activities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">35,710</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,492</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Cash flows from investing activities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Additions to property and equipment	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(8,852</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(7,086</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Proceeds from sale of property and equipment	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,187</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,859</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Restricted cash	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,945</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Net cash used in investing activities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(6,665</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(6,172</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Cash flows from financing activities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cumulative daily drawdowns &#8211; Credit Facility	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">112,848</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cumulative daily repayments &#8211; Credit Facility	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(147,450</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cash received&#8211; equipment-based term loan	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">18,980</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cumulative repayments &#8211; equipment-based term loan and other	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(9,546</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cumulative drawdowns &#8211; equipment-based revolver	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,000</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">13,100</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cumulative repayments &#8211; equipment-based revolver	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(19,000</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Net proceeds from stock issued	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,142</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Distributions to noncontrolling interest owners	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(3,402</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(46</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(2,751</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Net cash provided by (used in) financing activities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,550</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(8,675</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Net increase (decrease) in cash and cash equivalents	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">38,595</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(11,355</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Cash and cash equivalents at beginning of period	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">4,426</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">22,843</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt">Cash and cash equivalents at end of period	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">43,021</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">11,488</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Supplemental disclosures of cash flow information:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cash paid during the period for interest	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">2,429</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">1,893</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Cash paid during the period for income taxes	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">5</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">547</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Non-cash items:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Transportation and construction equipment acquired through financing arrangements	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">735</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">1,161</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>


<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The accompanying notes are an
integral part of these condensed consolidated financial statements<font style="font-size: 10pt">.</font></i></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i><font style="font-size: 10pt">&nbsp;</font></i>
</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC. &amp; SUBSIDIARIES</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>NOTES TO CONDENSED CONSOLIDATED
FINANCIAL STATEMENTS</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">(Unaudited)</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in"></td></tr></table><div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"><td style="width: 0.25in">1.</td><td style="text-align: justify; padding-right: 0.05in">Business Summary and Significant Accounting Policies</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Business Summary</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Sterling Construction Company, Inc. (&#8220;Sterling&#8221;
or &#8220;the Company&#8221;), a Delaware corporation, is a leading heavy civil construction company that specializes in the building
and reconstruction of transportation and water infrastructure projects in Texas, Utah, Nevada, Colorado, Arizona, California, Hawaii
and other states in which there are construction opportunities. Its transportation infrastructure projects include highways, roads,
bridges, airfields, ports and light rail. Its water infrastructure projects include water, wastewater and storm drainage systems.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Presentation</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The condensed consolidated financial
statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities
and Exchange Commission (&#8220;SEC&#8221;) and should be read in conjunction with the Annual Report on Form 10-K for the year
ended December 31, 2015 (&#8220;2015 Form 10-K&#8221;). Certain information and note disclosures prepared in accordance with accounting
principles generally accepted in the United States of America (&#8220;GAAP&#8221;) have been either condensed or omitted pursuant
to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal
recurring adjustments necessary to present fairly the Company&#8217;s financial position at September 30, 2016 and the results
of operations and cash flows for the periods presented. The December 31, 2015 condensed consolidated balance sheet data herein
was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim
results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September
30, 2016 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Significant Accounting Policies</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company&#8217;s significant
accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K.
These accounting policies include, but are not limited to, those related to:</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 35pt; text-align: right">&#8226;</td><td style="width: 5pt"></td><td style="text-align: justify">revenue recognition</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 35pt; text-align: right">&#8226;</td><td style="width: 5pt"></td><td style="text-align: justify">contracts receivable, including retainage</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 35pt; text-align: right">&#8226;</td><td style="width: 5pt"></td><td style="text-align: justify">valuation of property and equipment, goodwill and other long-lived assets</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 35pt; text-align: right">&#8226;</td><td style="width: 5pt"></td><td style="text-align: justify">income taxes</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 35pt; text-align: right">&#8226;</td><td style="width: 5pt"></td><td style="text-align: justify">segment reporting</td>
</tr></table>




<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">There have been no material changes
to significant accounting policies since December 31, 2015.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Principles of Consolidation</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The accompanying condensed consolidated financial
statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership
interest or otherwise controls such entities. For investments in subsidiaries and construction joint ventures that are not wholly-owned,
but where the Company exercises control, the equity held by the remaining owners and their portions of net income (loss) are reflected
in the balance sheet line item &#8220;Noncontrolling interests&#8221; in &#8220;Equity&#8221; and the statement of operations line
item &#8220;Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures,&#8221; respectively. All significant
intercompany accounts and transactions have been eliminated in consolidation. For all years presented, the Company had no subsidiaries
where its ownership interests were less than 50%.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Where the Company is a noncontrolling joint
venture partner, and otherwise not required to consolidate the joint venture entity, its share of the operations of such construction
joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line
item (&#8220;Receivables from and equity in construction joint ventures&#8221;) in the condensed consolidated balance sheets. This
method is an acceptable modification of the equity method of accounting which is a common practice in the construction industry.
Refer to Note 7 for further information regarding the Company&#8217;s construction joint ventures.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Under GAAP, the Company must determine whether
each entity, including joint ventures in which it participates, is a variable interest entity (&#8220;VIE&#8221;). This determination
focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the
obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in
the entity, which could have the effect of requiring the Company to consolidate the entity in which it has a noncontrolling variable
interest. Refer to Note 8 for further information regarding the Company&#8217;s consolidated VIE.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Use of Estimates</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The preparation of the accompanying condensed
consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the
reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements
and the reported amounts of revenues and expenses during the reporting period. Certain of the Company&#8217;s accounting policies
require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from
construction contracts under the percentage-of-completion method, the valuation of long-term assets (including goodwill) and income
taxes. Management continually evaluates all of its estimates and judgments based on available information and experience; however,
actual results could differ from these estimates.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Reclassification</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Reclassifications have been made
to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Revenue Recognition</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company is a general contractor which engages
in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public
owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work
on such projects. While most public contracts are subject to termination at the election of the government entity, in the event
of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related
costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority
in the event of lien foreclosures following financial difficulties of private owners.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Our contracts generally take 12 to 36 months
to complete. The Company generally provides a one to two-year warranty for workmanship under its contracts when completed. Warranty
claims historically have been insignificant.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Revenues are recognized on the percentage-of-completion
method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost
measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs
include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such
as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses
are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such
losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising
from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized
in the period in which the revisions are determined.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Changes in estimated revenues and gross margin
resulted in a net charge of $0.6 million and a net charge of $1.1 million during the three months and nine months ended September
30, 2016, respectively, included in &#8220;operating income (loss)&#8221; on the condensed consolidated statements of operations<font style="color: red">.
</font>Changes in estimated revenues and gross margin resulted in a net charge of $1.1 million and $12.3 million during the three
months and nine months ended September 30, 2015, respectively, included in &#8220;operating income (loss)&#8221; on the condensed
consolidated statements of operations<font style="color: red">.</font></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Change orders are
modifications of an original contract that effectively change the existing provisions of the contract without adding new provisions
or terms. Change orders may include changes in specifications or designs, manner of performance, facilities, equipment, materials,
sites and period of completion of the work. Either we or our customers may initiate change orders.</P>


<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company considers
unapproved change orders to be contract variations for which we have customer approval for a change of scope but a price change
associated with the scope change has not yet been agreed upon. Costs associated with unapproved change orders are included in the
estimated costs to complete the contracts and are treated as project costs as incurred. The Company recognizes revenue equal to
costs incurred on unapproved change orders when realization of price approval is probable. Unapproved change orders involve the
use of estimates, and it is reasonably possible that revisions to the estimated costs and recoverable amounts may be required in
future reporting periods to reflect changes in estimates or final agreements with customers. Change orders that are unapproved
as to both price and scope are evaluated as claims.</P>


<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company considers claims to be amounts
in excess of agreed contract prices that we seek to collect from our customers or others for customer-caused delays, errors in
specifications and designs, contract terminations, change orders that are either in dispute or are unapproved as to both scope
and price, or other causes of unanticipated additional contract costs. Claims are included in the calculation of revenue when realization
is probable and amounts can be reliably determined to the extent costs are incurred. To support these requirements, the existence
of the following items must be satisfied: 1. The contract or other evidence provides a legal basis for the claim; or a legal opinion
has been obtained, stating that under the circumstances there is a reasonable basis to support the claim; 2. Additional costs are
caused by circumstances that were unforeseen at the contract date and are not the result of deficiencies in the contractor&#8217;s
performance; 3. Costs associated with the claim are identifiable or otherwise determinable and are reasonable in view of the work
performed; and 4. The evidence supporting the claim is objective and verifiable, not based on management&#8217;s feel for the situation
or on unsupported representations. Revenues in excess of contract costs incurred on claims is recognized when an agreement is reached
with customers as to the value of the claims, which in some instances may not occur until after completion of work under the contract.
Costs associated with claims are included in the estimated costs to complete the contracts and are treated as project costs when
incurred.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company
has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims
with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its
customers based on completing work associated with change orders with pending change order pricing or claims related
to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved
change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If
additional progress with an acceptable resolution is not reached, legal action will be taken.</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Based upon our review
of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders,
claims and our entitled unpaid project price, together with the views of the Company&rsquo;s outside claim consultants, we concluded
that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9
million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015,
in &ldquo;Costs and estimated earnings in excess of billings on uncompleted contracts&rdquo; on our condensed consolidated balance
sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial
statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ
materially from estimated and recorded amounts.</P>



<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Financial Instruments and Fair Value</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The fair value of financial instruments
is the amount at which the instrument could be exchanged in a current transaction between willing parties. The Company&#8217;s
financial instruments are cash and cash equivalents, restricted cash used as collateral for a letter of credit and restricted cash
maintained in an escrow account, short-term contracts receivable, accounts payable, notes payable, a revolving loan (the &#8220;Revolving
Loan&#8221;) with Nations Fund I, LLC and Nations Equipment Finance, LLC, as administrative agent and collateral agent for the
lender (&#8220;Nations&#8221;) and a term loan (the &#8220;Term Loan&#8221;) with Nations (combined, the &#8220;Equipment-based
Facility&#8221;).</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The recorded values of cash and
cash equivalents, restricted cash, short-term contracts receivable and accounts payable approximate their fair values based on
their liquidity and/or short-term nature.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Refer to Note 11 regarding the fair
value of the Revolving Loan and the Term Loan and notes payable. The Company does not have any off-balance sheet financial instruments
other than operating leases (refer to Note 12 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K).</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">In order
to assess the fair value of the Company&#8217;s financial instruments, the Company uses the fair value hierarchy established by
GAAP which prioritizes the inputs used in valuation techniques into the following three levels:</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 1 Inputs &#8211; Based
upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 2 Inputs &#8211; Based
upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in
markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves,
volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 3 Inputs &#8211; Based
on unobservable inputs reflecting the Company&#8217;s own assumptions about the assumptions that market participants would use
in pricing the asset based on the best information available.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For each financial instrument, the
Company uses the highest priority level input that is available in order to appropriately value that particular instrument. In
certain instances, Level 1 inputs are not available and the Company must use Level 2 or Level 3 inputs. In these cases, the Company
provides a description of the valuation techniques used and the inputs used in the fair value measurement.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Recent Accounting Pronouncements</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In August 2016, the Financial Accounting
Standards Board (&#8220;FASB&#8221;) issued guidance in Accounting Standards Update (&#8220;ASU&#8221;) No. 2016-15 (Topic 230):
Classification of Certain Cash Receipts and Cash Payments. This update addresses specific cash flow issues with the objective of
reducing existing diversity in practice. Early adoption is permitted for fiscal years, and interim periods within those fiscal
years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the
Company&#8217;s consolidated financial statements and related disclosures.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In June 2016, the FASB issued guidance
in ASU No. 2016-13 Financial Instruments&#8212;Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.
Among other things, these amendments require the measurement of all expected credit losses for financial assets held at the reporting
date based on historical experience, current conditions, and reasonable and supportable forecasts (forward-looking). Many of the
loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect
the full amount of expected credit losses. This new guidance is effective for public entities for annual reporting periods, beginning
after December 15, 2019, including interim reporting periods therein. Early adoption is permitted for fiscal years, and interim
periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption
of this guidance to the Company&#8217;s consolidated financial statements and related disclosures.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In April and May 2016, the FASB
issued additional revenue recognition guidance in ASU No. 2016-12, No. 2016-11 and 2016-10 (Topic 606). All three of these standards
provide implementation guidance and clarifications of ASU 2014-09, &#8220;Revenue from Contracts with Customers.&#8221; ASU 2016-10
provides additional guidance on identifying performance obligations and licensing, ASU 2016-11 rescinds SEC guidance based on the
previous revenue recognition standards and ASU 2016-12 relates to narrow-scope improvements and practical expedients. All of these
amendments are effective for public entities for annual reporting periods beginning after December 15, 2017, including interim
reporting periods therein. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#8217;s
consolidated financial statements and related disclosures.</p>


<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In March 2016, the FASB issued its
new stock compensation guidance in ASU No. 2016-09 (Topic 718). First, under the new guidance, companies will be required to recognize
the income tax effects of share-based awards in the income statement when the awards vest or are settled (i.e., additional paid-in
capital (&#8220;APIC&#8221;) or APIC pools will be eliminated). In addition, the new guidance allows a withholding amount of awarded
shares with a fair value up to the amount of tax owed using the maximum, instead of the minimum, statutory tax rate without triggering
liability classification for the award. Lastly, the new guidance allows companies to elect whether to account for forfeitures of
share-based payments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number of awards expected to
be forfeited and adjusting the estimate when it is likely to change, as is currently required. The new standard is effective for
annual periods beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted.
The Company has chosen to early adopt this guidance and chosen to account for forfeitures of share-based payments by recognizing
forfeitures of awards as they occur. The result of adopting this guidance was immaterial to the Company&#8217;s condensed consolidated
financial statements.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In February 2016, the FASB issued
its new lease accounting guidance in ASU No. 2016-02, Leases (Topic 842).&nbsp;Under the new guidance, lessees will be required
to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee&#8217;s obligation to
make lease payments arising from a lease, measured on a discounted basis and a right-of-use asset, which is an asset that represents
the lessee&#8217;s right to use, or control the use of, a specified asset for the lease term. The new standard is effective for
annual periods beginning after December 15, 2018, including interim periods within those fiscal years.&nbsp;The Company is currently
evaluating the impact of the adoption of this ASU to the Company&#8217;s consolidated financial statements and related disclosures.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">2.</td><td style="text-align: justify; padding-right: 0.05in">Cash and Cash Equivalents and Restricted Cash</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company considers all highly
liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents.
Cash and cash equivalents include cash balances held by our wholly owned subsidiaries, as well as cash held by majority owned subsidiaries,
construction joint ventures, and the Company&#8217;s VIE that we consolidate. Refer to Note 8 for more information regarding the
Company&#8217;s consolidated VIE. Joint venture cash balances are limited to joint venture activities and are not available for
other projects, general cash needs or distribution to us without approval of the board of directors, or equivalent body, of the
respective joint ventures. At September 30, 2016 and December 31, 2015, cash and cash equivalents included $14.1 million and a
minimal amount, respectively, belonging to a majority-owned joint venture which generally cannot be used for purposes outside the
joint venture.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Restricted cash of approximately $3.0 million is included in &#8220;other assets, net&#8221; on the condensed consolidated
balance sheets as of September 30, 2016 and December 31, 2015, and represents cash deposited by the Company into a separate account
and designated as collateral for a standby letter of credit in the same amount in accordance with contractual agreements.&nbsp;Refer
to Note 5 for more information about our standby letter of credit. In addition, restricted cash of approximately $2.0 million is
included in &#8220;other current assets&#8221; on the condensed consolidated balances sheet as of September 30, 2016 and December
31, 2015, which represents cash deposited by a customer, for the benefit of the Company, in an escrow account which is restricted
until the customer releases the restriction upon the completion of the job.&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company holds cash on deposit in U.S. banks,
at times, in excess of federally insured limits. Management does not believe that the risk associated with keeping cash deposits
in excess of federal deposit insurance limits represents a material risk.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

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<p style="font-size: 10pt; text-align: justify; margin: 0pt 0"></p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">3.</td><td style="text-align: justify; padding-right: 0.05in">Property and Equipment</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 1in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in">Property and equipment are summarized
as follows (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br>2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid; text-align: center">December 31, <br>2015</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Construction equipment	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">121,371</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">114,724</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Transportation equipment	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">18,924</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">18,056</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Buildings	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">12,771</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">10,860</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Office equipment	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,041</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,810</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Leasehold improvement	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">915</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">894</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Construction in progress	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">96</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,986</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Land	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,509</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,257</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Water rights	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">160,827</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">153,787</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less accumulated depreciation	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(90,464</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(80,312</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 9pt">Total property and equipment, net	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">70,363</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">73,475</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="margin-top: 0; margin-bottom: 0">&nbsp;</p></div><p style="margin-top: 0; margin-bottom: 0"></p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">4.</td><td style="text-align: justify; padding-right: 0.05in">Income Taxes</td></tr></table>

<p style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company and its subsidiaries
file U.S. federal and various U.S. state income tax returns. Current income tax expense (or benefit) represents federal and state
taxes based on tax paid or expected to be payable or receivable for the periods shown in the condensed consolidated statements
of operations.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is not expecting a current
federal tax liability due to sufficient net operating loss carry forwards. The Company may incur current state tax liabilities
in states in which the Company does not have sufficient net operating loss carry forwards. A minimal tax expense was recorded for
the three and nine months ended September 30, 2016 and a minimal tax benefit was recorded for the three and nine months ended September
30, 2015. The effective income tax rate varied from the statutory rate primarily as a result of the change in the valuation allowance,
net income attributable to noncontrolling interest owners which is taxable to those owners rather than to the Company, state income
taxes and other permanent differences.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company&#8217;s deferred tax
expense (or benefit) reflects the change in deferred tax assets or liabilities. The Company performs an analysis at the end of
each reporting period to determine whether it is more likely than not the deferred tax assets are expected to be realized in future
years. Based upon this analysis, a full valuation allowance has been applied to our net deferred tax assets as of September 30,
2016 and December 31, 2015. Therefore, there has been no change in net deferred taxes for the three and nine months ended September
30, 2016.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">As a result of the Company&#8217;s
analysis, management has determined that the Company does not have any material uncertain tax positions.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">5.</td><td style="text-align: justify; padding-right: 0.05in">Commitments and Contingencies</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is required by our insurance
provider to obtain and hold a standby letter of credit. This letter of credit serves as a guarantee by the banking institution
to pay our insurance provider the incurred claim costs attributable to our general liability, workers compensation and automobile
liability claims, up to the amount stated in the standby letter of credit, in the event that these claims were not paid by the
Company. Due to the change to our Equipment-based Facility, we have cash collateralized the letter of credit, resulting in the
cash being designated as restricted. Refer to Note 2 for more information on our restricted cash.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the first six months of 2016,
the Company recorded a legal reserve of $1.0 million as a result of a dispute between one of the Company&#8217;s wholly-owned subsidiaries
and a subcontractor. This amount was recorded as &#8220;cost of revenues&#8221; in our condensed statements of operations and was
settled for $1.0 million during the second quarter of 2016. This matter is now resolved in its entirety.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is the subject of certain
other claims and lawsuits occurring in the normal course of business. Management, after consultation with legal counsel, does not
believe that the outcome of these actions will have a material impact on the condensed consolidated financial statements of the
Company.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

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<p style="font-size: 10pt; text-align: justify; margin: 0pt 0.05in 0pt 0"></p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">6.</td><td style="text-align: justify; padding-right: 0.05in">Subsidiaries and Joint Ventures with Noncontrolling Owners&#8217; Interests</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"><b><i>&nbsp;</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The amended agreements, as described
in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, resulted in an obligation to purchase Mr. Buenting&#8217;s
and Myers&#8217; 50% members&#8217; interest that the Company is certain to incur, either because of Mr. Buenting&#8217;s or Mr.
Myers&#8217; death; therefore, the Company has classified the noncontrolling interest as mandatorily redeemable and has recorded
a liability in &#8220;Members&#8217; interest subject to mandatory redemption and undistributed earnings&#8221; on the condensed
consolidated balance sheets. In addition, all undistributed earnings at the time of the noncontrolling owners&#8217; death or permanent
disability are also mandatorily payable. The liability consists of the following (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">September 30,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2016</p></td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">December 31,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2015</p></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: left; text-indent: 0in">Members&#8217; interest subject to mandatory redemption	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">40,000</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">40,000</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Net accumulated earnings	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">6,466</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,438</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt">Total liability	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">46,466</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,438</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Earnings for the three and nine
months ended September 30, 2016 were $3.4 million and $7.3 million, respectively and $1.5 million and $0.8 million for the three
and nine months ended September 30, 2015. These amounts were included in &#8220;Other operating income, net&#8221; on the Company&#8217;s
condensed consolidated statements of operations.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Changes in Noncontrolling Interests</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The following table summarizes the
changes in the noncontrolling owners&#8217; interests in subsidiaries and joint ventures (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: left">Balance, beginning of period	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">(91</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">7,462</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Net income attributable to noncontrolling interest included in equity	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,252</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,948</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Distributions to noncontrolling interest owners</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,402</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt">Balance, end of period	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">1,161</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">7,008</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Net income attributable to noncontrolling
interests for the nine months ended September 30, 2016, is primarily from the Company&#8217;s majority-owned construction joint
venture. Due to the events described in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, the Company&#8217;s
subsidiaries with noncontrolling interest earnings are less than the earnings in the prior year period.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><b></b></p>

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<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><b></b></p>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in"></td></tr></table><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"><td style="width: 0.25in"></td></tr></table><div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"><td style="width: 0.25in">7.</td><td style="text-align: justify; padding-right: 0.05in">Construction Joint Ventures</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company participates in various
construction joint ventures. Generally, each construction joint venture is formed to construct a specific project and is jointly
controlled by the joint venture partners. Refer to Note 6 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K
for further information about our joint ventures. Condensed combined financial amounts of joint ventures in which the Company has
a noncontrolling interest and the Company&#8217;s share of such amounts which are included in the Company&#8217;s condensed consolidated
financial statements are shown below (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td nowrap style="font-size: 10pt">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">September 30, <br>
2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">December 31, <br>
2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left">Total combined:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 70%; font-size: 10pt; text-align: left; padding-left: 20pt">Current assets</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">26,893</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">17,312</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1.1pt; padding-left: 20pt">Less current liabilities</td><td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td>
    <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(51,181</td><td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td>
    <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(49,371</td><td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.5pt; padding-left: 40pt">Net assets</td><td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td>
    <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(24,288</td><td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td>
    <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(32,059</td><td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; padding-left: 20pt">Backlog</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">125,850</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">35,113</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left">Sterling&#8217;s noncontrolling interest in backlog</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">60,947</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">11,748</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Sterling&#8217;s receivables from and equity in construction joint ventures</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">9,469</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">12,930</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>



<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>



<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b></b></p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td nowrap style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Three Months Ended <br>September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td nowrap style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td>
    <td nowrap colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Total combined:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">15,520</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">9,458</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">44,074</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">50,450</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,925</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">808</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,838</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,866</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Sterling&#8217;s portion of noncontrolling interest:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">6,103</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">3,437</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">17,567</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">19,986</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">519</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">357</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,370</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,021</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>



<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Approximately $61 million of the Company&#8217;s backlog at September 30, 2016 was attributable to projects being performed
by joint ventures. The majority of this amount is attributable to the Company&#8217;s joint venture with Granite Construction Corporation,
where the Company has a 49% interest.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The caption &#8220;Receivables from
and equity in construction joint ventures&#8221; includes undistributed earnings and receivables owed to the Company. Undistributed
earnings are typically released to the joint venture partners after the customer accepts the project as complete and the warranty
period, if any, has passed.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><b>&nbsp;</b></p>

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<p style="font-size: 10pt; text-align: left; margin: 0pt 0"><b></b></p>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in"></td></tr></table><div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top"><td style="width: 0.25in">8.</td><td style="text-align: justify; padding-right: 0.05in">Variable Interest Entities</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company owns a 50% interest
in Myers &amp; Sons Construction, L.P. (&#8220;Myers&#8221;), of which it is the primary beneficiary and has consolidated Myers
into the Company&#8217;s financial statements. Because the Company exercises primary control over activities of the partnership
and it is exposed to the majority of potential losses of the partnership, the Company has consolidated Myers within the Company&#8217;s
financial statements since August 1, 2011, the date of acquisition. Refer to Note 3 of the Notes to Consolidated Financial Statements
included in the 2015 Form 10-K for additional information on the acquisition of this limited partnership.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The condensed financial information of Myers,
which is reflected in the Company&#8217;s condensed consolidated balance sheets and statements of operations, is as follows (amounts
in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br>2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, <br>2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Assets:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Current assets:	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt">Cash and cash equivalents 	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">2,074</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">3,226</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Contracts receivable, including retainage	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">25,107</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,941</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current assets	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,052</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">15,887</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current assets	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">37,233</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">39,054</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Property and equipment, net	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">10,279</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">10,080</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Goodwill	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total assets	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">49,013</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,635</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify">Liabilities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Current liabilities:	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accounts payable	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">25,907</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">20,596</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">11,541</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,986</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current liabilities	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">37,448</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">31,582</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Long-term liabilities:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other long-term liabilities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">425</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,370</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total liabilities	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">37,873</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">34,952</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br>September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">Nine Months Ended</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">September 30,</p></td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 40%; font-size: 10pt; text-align: left; text-indent: 0in">Revenues	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">50,739</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">43,444</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">121,649</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">134,035</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Operating income	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,720</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,216</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,894</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,885</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt; text-indent: -10pt">Net income attributable to Sterling common stockholders</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,357</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,108</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,440</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,941</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">9.</td><td style="text-align: justify; padding-right: 0.05in">Stockholders&#8217; Equity</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b><i>Stock Offering</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">On May 9, 2016, the Company completed
an underwritten public offering of 5,175,000 shares of the Company&#8217;s common stock, which included the full exercise of the
sole underwriter&#8217;s over-allotment option, at a price to the public of $4.00 per share ($3.77 per share net of underwriting
discounts). The net proceeds from the offering of $19.1 million, after deducting underwriting discounts and other offering expenses,
were used for working capital, repayment of our indebtedness under the revolving loan portion of our Equipment-based Facility and
for general corporate purposes.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b><i></i></b></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b><i>Stock-Based Compensation</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company has a stock-based incentive
plan which is administered by the Compensation Committee of the Board of Directors. Refer to Note 14 of the Notes to Consolidated
Financial Statements included in the 2015 Form 10-K for further information.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the three and nine months
ended September 30, 2016, the Company awarded a total of zero and 79,240 shares of common stock, respectively, at a weighted-average
grant date value of zero and $4.36 per share, respectively, based on the closing price of the Company&#8217;s common stock on the
date of award. The Company recorded stock-based compensation expense of $0.4 million and $1.2 million for the three months and
nine months ended September 30, 2016, respectively, and $0.8 million and $1.3 million for the three and nine months ended September
30, 2015, respectively.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">At September 30, 2016, total unrecognized
compensation cost related to unvested common stock awards was $2.3 million. This cost is expected to be recognized over a weighted
average period of 1.5 years. At September 30, 2016, there were 0.8 million shares of common stock covered by outstanding unvested
common stock.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">10.</td><td style="text-align: justify; padding-right: 0.05in">Net Income (Loss) per Share Attributable to Sterling Common Stockholders</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Basic net income (loss) per share
attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders
by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share attributable
to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but
includes dilutive unvested stock using the treasury stock method. The following table reconciles the numerators and denominators
of the basic and diluted per common share computations for net income (loss) attributable to Sterling common stockholders (amounts
in thousands, except per share data):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br>September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">Numerator:</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 48%; font-size: 10pt; text-align: left; padding-left: 20pt; text-indent: -10pt">Net income (loss) attributable to Sterling common stockholders	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">2,415</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">256</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">(2,890</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 10%; font-size: 10pt; text-align: right">(19,278</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left">Denominator:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Weighted average common shares outstanding &#8212; basic	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">25,003</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,628</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">23,915</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19,269</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt">Shares for dilutive unvested stock	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">362</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 20pt; text-indent: -10pt">Weighted average common shares outstanding and incremental shares assumed repurchased&#8212; diluted	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">25,365</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,628</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">23,915</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,269</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt">Basic and diluted income (loss) per share attributable to Sterling common stockholders	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.10</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.01</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(0.12</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(1.00</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td></tr>
</table></div>


<p style="font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In accordance with the treasury stock method, zero and approximately 0.3 million shares of unvested common
stock were excluded from the calculation of the diluted weighted average common shares outstanding for the three and nine months
ended September 30, 2016, as the Company incurred a loss during the nine month period and the impact of such shares would have
been antidilutive. In accordance with the treasury stock method, 0.2 million and 0.4 million shares of unvested common stock were
excluded from the diluted weighted average common shares outstanding for the three and nine months ended September 30, 2015, as
the assumed proceeds related to these shares would purchase more shares than the unvested shares outstanding resulting in anti-dilution.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

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<p style="font-size: 10pt; text-align: left; margin: 0pt 0"><b></b></p>

<div data-td-statement-type="note"><table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0"></td><td style="width: 0.25in">11.</td><td style="text-align: justify; padding-right: 0.05in">Debt</td></tr></table>

<p style="font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Debt consists of the following (in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">September 30,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2016</p></td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">December 31,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2015</p></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Equipment-based Facility	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">9,553</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">17,957</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less deferred loan costs	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(891</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,119</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in; padding-left: 10pt">Equipment-based Facility, net	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">8,662</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">16,838</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Notes payable for transportation and construction equipment and other	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,943</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,342</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">11,605</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">20,180</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Current maturities of long-term debt	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,009</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">5,192</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less current deferred loan costs	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(356</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(336</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in; padding-left: 10pt">Less current maturities of long-term debt, net	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,653</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,856</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total long-term debt	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">6,952</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">15,324</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>


<p style="font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in"><b><i>Equipment-based Facility</i></b></p>

<p style="font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">At September 30, 2016, the Company
had a borrowing base of $27.0 million, which was the result of calculating 65% of the appraised value (where appraised value equals
net operating liquidated value) of the Company&#8217;s collateral.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the three months ended September
30, 2016 the Company prepaid $5 million of the principal balance of our Term Loan and paid approximately $0.2 million as a prepayment
fee which was recorded as &#8220;interest expense&#8221; in our condensed consolidated statement of operations.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Fair Value</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company&#8217;s debt is recorded at its
carrying amount in the condensed consolidated balance sheets. The Company uses an income approach to determine the fair value of
its 12% Term Loan due May 29, 2019 using estimated cash flows, which is a Level&nbsp;3 fair value measurement. As of September
30, 2016, the carrying values and fair values are as follows (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<div data-td-taggable-table=""><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, 2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, 2015</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Revolving Loan	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">-</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 48%; font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Term Loan	</td><td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,553</td><td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,527</td><td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td><td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td><td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total Equipment-based Facility debt	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,553</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,527</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table></div>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Notes Payable for Transportation
and Construction Equipment</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company has purchased and financed
various transportation and construction equipment to enhance the Company&#8217;s fleet of equipment. The total long-term notes
payable related to the purchase of financed equipment was $2.9 million at September 30, 2016 and $3.3 million at December 31, 2015.
The purchases have payment terms ranging from 3 to 5 years and the associated interest rates range from 3.12% to 7.13%. The fair
value of these notes payable approximates their book value.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Interest Expense</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Interest expense related to our Equipment-based
Facility and other debt for the three and nine months ended September 30, 2016 was $0.5 million and $2.2 million, respectively,
and $1.1 million and $2.1 million for the three and nine months ended September 30, 2015, respectively. The decrease in interest
expense for the three months ended September 30, 2016 was due to the decreased debt outstanding during the period. The slight
increase in interest expense for the nine months ended September 30, 2016, was due to the prepayment fee discussed above and the
higher interest rate on the Equipment-based Facility compared to the interest rate on our prior credit facility.</p></div><p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p1i2"></a>Item 2. Management&#8217;s
Discussion and Analysis of Financial Condition and Results of Operations</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Cautionary Comment Regarding
Forward-Looking Statements</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">This Report includes statements that are, or
may be considered to be, &#8220;forward-looking statements&#8221; within the meaning of Section 27A of the Securities Act of 1933,
as amended, or the Securities Act and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. These
forward-looking statements are included throughout this Report, including in this section, &#8220;Management&#8217;s Discussion
and Analysis of Financial Condition and Results of Operations,&#8221; and relate to matters such as our industry, business strategy,
goals and expectations concerning our market position, future operations, margins, profitability, capital expenditures, liquidity
and capital resources and other financial and operating information. We have used the words &#8220;anticipate,&#8221; &#8220;assume,&#8221;
&#8220;believe,&#8221; &#8220;budget,&#8221; &#8220;continue,&#8221; &#8220;could,&#8221; &#8220;estimate,&#8221; &#8220;expect,&#8221;
&#8220;forecast,&#8221; &#8220;future,&#8221; &#8220;intend,&#8221; &#8220;may,&#8221; &#8220;plan,&#8221; &#8220;potential,&#8221;
&#8220;predict,&#8221; &#8220;project,&#8221; &#8220;should,&#8221; &#8220;will,&#8221; &#8220;would&#8221; and similar terms and
phrases to identify forward-looking statements in this Report.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Forward-looking statements reflect our current
expectations as of the date of this Report regarding future events, results or outcomes. These expectations may or may not be realized.
Some of these expectations may be based upon assumptions or judgments that prove to be incorrect. In addition, our business and
operations involve numerous risks and uncertainties, many of which are beyond our control, that could result in our expectations
not being realized or otherwise could materially affect our financial condition, results of operations and cash flows.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Actual events, results and outcomes may differ
materially from our expectations due to a variety of factors. Although it is not possible to identify all of these factors, they
include, among others, the following:</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">changes in general economic conditions, including recessions, reductions in federal, state and
local government funding for infrastructure services and changes in those governments&#8217; budgets, practices, laws and regulations;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">delays or difficulties related to the completion of our projects, including additional costs, reductions
in revenues or the payment of liquidated damages, or delays or difficulties related to obtaining required governmental permits
and approvals;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">actions of suppliers, subcontractors, design engineers, joint venture partners, customers, competitors,
banks, surety companies and others which are beyond our control, including suppliers&#8217;, subcontractors&#8217; and joint venture
partners&#8217; failure to perform;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">factors that affect the accuracy of estimates inherent in our bidding for contracts, estimates
of backlog, percentage-of-completion accounting policies, including onsite conditions that differ materially from those assumed
in our original bid, contract modifications, mechanical problems with our machinery or equipment and effects of other risks discussed
in this document;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">design/build contracts which subject us to the risk of design errors and omissions;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">cost escalations associated with our contracts, including changes in availability, proximity and
cost of materials such as steel, cement, concrete, aggregates, oil, fuel and other construction materials and cost escalations
associated with subcontractors and labor;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">our dependence on a limited number of significant customers;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">adverse weather conditions; although we prepare our budgets and bid contracts based on historical
rain and snowfall patterns, the incidence of rain, snow, hurricanes, etc., may differ materially from these expectations;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">the presence of competitors with greater financial resources or lower margin requirements than
ours and the impact of competitive bidders on our ability to obtain new backlog at reasonable margins acceptable to&nbsp;us;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">our ability to successfully identify, finance, complete and integrate acquisitions;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">citations issued by any governmental authority, including the Occupational Safety and Health Administration;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">federal, state and local environmental laws and regulations where non-compliance can result in
penalties and/or termination of contracts as well as civil and criminal liability;</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">adverse economic conditions in our markets; and</td></tr></table>

<table cellpadding="0" cellspacing="0" width="100%" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 0pt"><tr style="vertical-align: top">
<td style="width: 0.25in"></td><td style="width: 0.25in"><font style="font-family: Symbol">&#183;</font></td><td style="text-align: justify">the other factors discussed in more detail in our Annual Report on Form 10-K for the year ended
December 31, 2015 (&#8220;2015 Form 10-K&#8221;) under &#8220;Part I, Item 1A. Risk Factors.&#8221;</td></tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In reading this Report, you should
consider these factors carefully in evaluating any forward-looking statements and you are cautioned not to place undue reliance
on any forward-looking statements. Although we believe that our plans, intentions and expectations reflected in, or suggested by,
the forward-looking statements that we make in this Report are reasonable, we can provide no assurance that they will be achieved.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i></i></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>The forward-looking statements
included in this Report are made only as of the date of this Report and we undertake no obligation to update any information contained
in this Report or to publicly release the results of any revisions to any forward-looking statements to reflect events or circumstances
that occur, or that we become aware of after the date of this Report, except as may be required by applicable securities laws.</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Overview</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Sterling Construction Company, Inc. (&#8220;Sterling&#8221;
or &#8220;the Company&#8221;), is a leading heavy civil construction company that specializes in building and reconstruction of
transportation and water infrastructure projects in Texas, Utah, Nevada, Colorado, Arizona, California, Hawaii and other states
in which there are construction opportunities. Its transportation infrastructure projects include highways, roads, bridges, airfields,
ports and light rail. Its water infrastructure projects include water, wastewater and storm drainage systems.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Although we describe our business in this Report
in terms of the services we provide, our base of customers and the geographic areas in which we operate, we have concluded that
our operations consist of one reportable segment, one operating segment and one reporting unit component: heavy civil construction.
In making this determination, the Company considered the discrete financial information used by our Chief Operating Decision Maker
(&#8220;CODM&#8221;). Based on this approach, the Company noted that the CODM organizes, evaluates and manages the financial information
around each heavy civil construction project when making operating decisions and assessing the Company&#8217;s overall performance.
Furthermore, we considered that each heavy civil construction project has similar characteristics, includes similar services, has
similar types of customers and is subject to similar economic and regulatory environments.&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Market Outlook and Trends</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>&nbsp;</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Market outlook: Our core business
is primarily driven by Federal and state funding. The late 2015 passage of the federally funded five-year $305 billion surface
transportation bill will increase the annual federal highway investment by 15.1% over the five-year period from 2016 to 2020. In
addition to the Federal program, several of the states in our key markets have instituted actions to further increase annual spending.
In Texas, two constitutional amendments were passed, which will increase the annual funds allocated to transportation projects
by $4.0 billion to $4.5 billion per year. In Utah, a 20% gas tax increase was put into effect January 1, 2016, which is the first
state gas tax increase in 18 years. In addition, California is currently trying to pass a $3.6 billion per year transportation
bill. See &#8220;Item 1. Business&#8212;Our Markets, Competition and Customers&#8221; in our 2015 Form 10-K for a more detailed
discussion of our markets and their funding sources.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Bid discipline and project execution:
To ensure that we take full advantage of the improved market conditions and maximize profitability we have completed an extensive
evaluation of our projects&#8217; historical success based on project size, end customer, product delivered and geography. The
knowledge gained has now been incorporated into a more formal and rigorous bid evaluation and approval process, which along with
the institution of common processes, we believe will enable us to focus our resources on the most beneficial projects and significantly
reduce our risk. In addition, in order to strengthen these processes and capitalize further on the improved market conditions,
we appointed a Chief Operating Officer late in the first quarter of 2016.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Backlog, backlog gross margin and
gross margin trends:</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
<tr>
    <td style="vertical-align: top; width: 50%; border: Black 1pt solid; text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; width: 25%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><b>Backlog</b></td>
    <td style="vertical-align: bottom; width: 25%; border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center"><b>Gross Margin in Backlog</b></td></tr>
<tr>
    <td style="vertical-align: top; border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: justify; text-indent: 0in">&nbsp;</td>
    <td colspan="2" style="vertical-align: bottom; border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center">(Dollar amounts in thousands)</td></tr>
<tr style="vertical-align: top">
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: left; text-indent: 0in">Third quarter of 2016	</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">&nbsp;$820,000</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">8.0%</td></tr>
<tr style="vertical-align: top">
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: left; text-indent: 0in">Second quarter of 2016	</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">$810,000</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">7.8%</td></tr>
<tr style="vertical-align: top">
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: left; text-indent: 0in">First quarter of 2016	</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">$854,000</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">7.7%</td></tr>
<tr style="vertical-align: top">
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: left; text-indent: 0in">Fourth quarter of 2015	</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">$761,000</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">7.0%</td></tr>
<tr style="vertical-align: top">
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; text-align: left; text-indent: 0in">Third quarter of 2015	</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">$718,000</td>
    <td style="border-right: Black 1pt solid; border-bottom: Black 1pt solid; text-align: center; text-indent: 0in">6.5%</td></tr>
</table>
<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">Our total
margin in backlog has increased approximately 150 basis points, from 6.5% at September 30, 2015 to 8.0% at September 30, 2016.
During the nine months ended September 30, 2016, we have won approximately $455 million worth of new projects at an average margin
of more than 8.5%. In addition, once we complete approximately $21 million worth of legacy projects with small or zero margins,
we expect that our overall backlog margins to continue to increase and will be in the 8.0% to 8.5% range by December 31, 2016.
The increases noted above are primarily the result of the improving market conditions and actions that we have taken to improve
bid discipline.</P>


<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Our gross margin has increased 1.2%,
66.7% and 8.8% from the third quarter of 2015 to the third quarter of 2016, from the second quarter of 2015 to the second quarter
of 2016 and from the first quarter of 2015 to the first quarter of 2016, respectively. These increases are a result of the improving
market conditions, our bid discipline and our improving project execution.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For purposes of the discussions
which follow, &#8220;Current Quarter&#8221; refers to the three-month period ended September 30, 2016, &#8220;Prior Quarter&#8221;
refers to the three-month period ended September 30, 2015, Current Period&#8221; refers to the nine-month period ended September
30, 2016 and &#8220;Prior Period&#8221; refers to the nine-month period ended September 30, 2015.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Summary of Financial Results
for the Current Quarter and Current Period </i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>&nbsp;</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In the Current Quarter and Current
Period, we had operating income of $3.7 million and $0.6 million, respectively, income before income taxes and earnings attributable
to noncontrolling interest owners of $3.2 million and a loss of $1.6 million, respectively, net income attributable to Sterling
common stockholders of $2.4 million and a loss attributable to Sterling common stockholders of $2.9 million, respectively, and
net income per diluted share attributable to Sterling common stockholders of $0.10 and a net loss per diluted share attributable
to Sterling common stockholders of $0.12, respectively.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Results of Operations</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>&nbsp;</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"><i>Backlog </i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">At September 30, 2016, our backlog of construction projects was $820 million, as compared to $761 million
at December 31, 2015. Our contracts are typically completed in 12 to 36 months. At September 30, 2016 and December 31, 2015, approximately
$94 million and $197 million, respectively, was excluded from our consolidated backlog for projects in which we were the apparent
low bidder, but had not yet been formally awarded the contract or the contract price had not been finalized (&#8220;Unsigned Low-bid
Awards&#8221;). Total backlog, including Unsigned Low-bid Awards, at September 30, 2016 and December 31, 2015, was $914 million
and $958 million, respectively. Backlog at September 30, 2016 includes $61 million attributable to our share of estimated revenues
related to joint ventures where we are a noncontrolling joint venture partner<font style="font-size: 10pt">.</font></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Results of Operations for the Current
Quarter as Compared to the Prior Quarter and for the Current Period as compared to the Prior Period</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="11" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended September 30,</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="11" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">% Change</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">% Change</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td colspan="23" style="font-size: 10pt; text-align: center">(Dollar amounts in thousands)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 40%; font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 0in">Revenues 	</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="width: 6%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">205,629</td><td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="width: 6%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">176,000</td><td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; padding-bottom: 2.25pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 6%; padding-bottom: 2.25pt; font-size: 10pt; text-align: right">16.8</td><td style="width: 1%; padding-bottom: 2.25pt; font-size: 10pt; text-align: left">%</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="width: 6%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">521,778</td><td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="width: 6%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">471,107</td><td style="width: 1%; border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 2%; font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="width: 1%; padding-bottom: 2.25pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 6%; padding-bottom: 2.25pt; font-size: 10pt; text-align: right">10.8</td><td style="width: 1%; padding-bottom: 2.25pt; font-size: 10pt; text-align: left">%</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Gross profit	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">17,032</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">14,458</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">17.8</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">36,951</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">16,733</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;NM</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">General and administrative expenses	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(9,575</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(11,119</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(13.9</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(29,221</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(32,320</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(9.6</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Other operating income (expense), net 	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,785</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(958</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(7,143</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,128</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Operating income (loss)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,672</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,381</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">54.2</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">587</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(14,459</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;NM</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Interest income	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">15</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">32</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(53.1</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">19</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">464</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(95.9</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Interest expense	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(491</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,087</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(54.8</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(2,176</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(2,103</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3.5</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Loss on extinguishment of debt	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(240</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt; text-indent: -10pt">Income (loss) before taxes and earnings attributable to noncontrolling interests	a</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,196</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,326</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;NM</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,570</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(16,338</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(90.4</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Income tax (expense) benefit	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(41</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">39</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(68</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">8</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Net income (loss)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,155</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1,365</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;NM</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,638</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(16,330</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(90.0</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 10pt; text-indent: -10pt">Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(740</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,109</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">(33.3</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,252</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(2,948</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: right">(57.5</td><td style="padding-bottom: 1pt; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt">Net income (loss) attributable to Sterling common stockholders	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">2,415</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">256</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: right">&nbsp;NM</td><td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(2,890</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(19,278</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: left">&nbsp;</td><td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: right">(85.0</td><td style="padding-bottom: 2.25pt; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Gross margin	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">8.3</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">8.2</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1.2</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">7.1</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3.6</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">97.2</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; text-indent: 0in">Operating margin (deficit)	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1.8</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">1.4</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">28.6</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">0.1</td><td style="font-size: 10pt; text-align: left">%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(3.1</td><td style="font-size: 10pt; text-align: left">)%</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;NM</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table>


<p style="margin: 0">&nbsp;</p>

<p style="text-align: left; font-size: 10pt; font-style: italic; margin-top: 0pt; margin-bottom: 0pt">NM &#8211; Not meaningful.</p>





<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i></i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Revenues</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Revenues increased $29.6 million, or
16.8%, in the Current Quarter compared with the Prior Quarter and increased $50.7 million, or 10.8%, in the Current Period
compared with the Prior Period. As our markets continue to improve, so has the trend of increasing backlog which increased
$102 million from September 30, 2015 to September 30, 2016. This trend has contributed to the increased execution of projects
and has favorably affected revenues in both the Current Quarter and Current Period. Specifically, the increase in revenues
during the Current Quarter as compared to the Prior Quarter is primarily the result of increased project activity in nearly
all of our markets which resulted in a $35.0 million increase, offset by a $5.4 million decrease in Texas. The Texas decrease
is primarily due to the slower ramp up of new work driven by owner delays. The majority of the increase was due to the ramp
up of two large Utah projects constructed by our majority-owned construction joint venture that were not ongoing in the Prior
Quarter or the Prior Period. The increase in the Current Period as compared to the Prior Period is primarily the result of
the ramp up of these two large projects along with the lower revenue projects constructed in the Prior Period and the
downward percent-complete revisions made to certain projects in the Prior Period. Current Period revenues increased largely
in Utah, Nevada and Hawaii by $75.4 million which was offset by $24.7 million due to lower project activity in Texas as a
result of heavy rainfall which caused flooding in the Houston and surrounding areas, slower ramp up of new work driven by
owner delays and the winding down of a large project in California which was ongoing in the Prior Period.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><i>Gross profit </i></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0.05in 0pt 0">Gross profit increased $2.6 million for the Current Quarter compared with the Prior Quarter and $20.2 million
for the Current Period compared with the Prior Period. Our gross margins increased to 8.3% and 7.1% in the Current Quarter and
Current Period, respectively, as compared to 8.2% and 3.6% in the Prior Quarter and Prior Period, respectively. The increase in
gross margin during the Current Quarter as compared to the Prior Quarter was primarily related to the overall increasing margin
in backlog driven by the Company&#8217;s improving markets and the change in the project margin mix as we have less revenue in the
current quarter from zero or near zero margin projects. Favorable project mix has improved gross margin in backlog by 1.5% to 8.0%
at September 30, 2016, from 6.5% at September 30, 2015. The increase in the gross margin during the Current Period as compared
to the Prior Period is primarily a result of downward revision of gross profits related to construction projects in Texas in the
Prior Period as well as improved project margin mix as noted above. Current Period gross margin was adversely affected by a completed
California project which recorded an additional loss of approximately $1.6 million. This loss was primarily attributable to unfavorable
developments relating to a subcontractor claim.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">At September 30, 2016 and 2015, we had 121
and 133 contracts-in-progress, respectively, which were less than 90% complete. These contracts are of various sizes, of different
expected profitability and in various stages of completion. The nearer a contract progresses toward completion, the more we are
able to refine our estimate of total revenues (including incentives, delay penalties, change orders and claims), costs and gross
profit. Thus, gross profit as a percent of revenues can increase or decrease from comparable and subsequent quarters due to variations
among contracts and depending upon the stage of completion of contracts.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company
has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims
with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its
customers based on completing work associated with change orders with pending change order pricing or claims related
to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved
change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If
additional progress with an acceptable resolution is not reached, legal action will be taken.</P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Based upon our review
of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders,
claims and our entitled unpaid project price, together with the views of the Company&rsquo;s outside claim consultants, we concluded
that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9
million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015,
in &ldquo;Costs and estimated earnings in excess of billings on uncompleted contracts&rdquo; on our condensed consolidated balance
sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial
statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ
materially from estimated and recorded amounts.</P>

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




<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"><i>General and administrative expenses </i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">General and administrative expenses decreased
$1.5 million to $9.6 million during the Current Quarter from $11.1 million in the Prior Quarter and decreased $3.1 million to $29.2
million during the Current Period from $32.3 million in the Prior Period. The decrease in the Current Quarter compared to the Prior
Quarter is primarily the result of certain non-recurring costs related to consulting and employee severance payments of $1.1 million
and $0.5 million, respectively, in the Prior Quarter. The decrease in the Current Period as compared to the Prior Period is primarily
the result of certain non-recurring costs related to consulting and employee severance payments of $1.2 million and $2.9 million,
respectively, in the Prior Period offset by an increase in certain employee and employee benefit costs in the Current Period.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">As a percent of revenues, general and administrative
expenses decreased 1.6% to 4.7% and 1.3% to 5.6% in the Current Quarter and Current Period, respectively, compared with 6.3% and
6.9% in the Prior Quarter and Prior Period, respectively. The decrease in general and administrative expenses, as a percentage
of revenue, for the Current Quarter and Current Period is primarily the result of the decrease in the non-recurring employee severance
costs and consulting costs paid in the Prior Period as mentioned above, along with the leverage generated from generally fixed
costs and increases in revenue in both current periods.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"><i>Other operating income (expense), net</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Other operating income (expense), net, includes
50% of earnings and losses related to members&#8217; interests, gains and losses from sales of property, plant and equipment and
other miscellaneous operating income or expense. Members&#8217; interest earnings are treated as an expense and result in an increase
to our liability account &#8220;Members&#8217; interest subject to mandatory redemption and undistributed earnings.&#8221; The
change in other operating income (expense), net was primarily due to increased Members&#8217; interest earnings and an earn-out
expense of $3.4 million and $0.4 million, respectively, for the Current Quarter and  Members&#8217; interest
earnings of $7.3 million for the Current Period.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Income taxes </i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Our effective income tax rates for
the Current and Prior Quarters were minimal. The Company is not expecting a current federal tax liability. We may incur current
state tax liabilities in states in which we do not have sufficient net operating loss carry forwards. A minimal tax expense was
recorded for the Current and Prior Quarters. The effective income tax rate varied from the statutory rate primarily as a result
of the change in the valuation allowance, net income attributable to noncontrolling interest owners which is taxable to those owners
rather than to the Company, state income taxes and other permanent differences.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Liquidity and Sources of Capital
</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">The following table sets forth information
about our cash flows and liquidity (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; font-weight: bold">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br>September 30,</td></tr>
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; font-weight: bold">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td><td style="padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify">Net cash (used in) provided by:</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">&nbsp;</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td>&nbsp;</td>
    <td style="text-align: left">&nbsp;</td><td style="text-align: right">&nbsp;</td><td style="text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt">Operating activities	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">35,710</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">3,492</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Investing activities	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(6,665</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(6,172</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Financing activities	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,550</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(8,675</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 30pt; text-indent: -10pt">Total increase (decrease) in cash and cash equivalents	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">38,595</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(11,355</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td></tr>
</table>



<p style="margin: 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: justify">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">September 30,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2016</p></td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><p style="margin-top: 0; margin-bottom: 0">December 31,</p>
                                                                                <p style="margin-top: 0; margin-bottom: 0">2015</p></td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 18.7pt">Cash and cash equivalents	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">43,021</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">4,426</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: justify; text-indent: 18.7pt">Working capital	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">40,634</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">$</td><td style="font-size: 10pt; text-align: right">30,610</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><i>Operating Activities.</i></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><i>&nbsp;</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">During the Current Period, net cash provided by operating activities was $35.7 million compared to $3.5 million
in the Prior Period. The drivers of operating activities cash flows were primarily the result of our lower net loss discussed above,
non-cash items, the change in our accounts receivable, inventory, net contracts in progress and accounts payable balances (collectively,
&#8220;Contract Capital&#8221;) and the change in other assets as discussed below.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The significant non-cash items included in
operating activities include depreciation and amortization expense, which were $12.1 million in the Current Period and $12.5 million
in the Prior Period. Depreciation expense has decreased from the Prior Period to the Current Period as a result of our efforts
to maintain our current fleet of equipment and supplement it as necessary with more economical project specific leased equipment.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The need for working capital for our business
varies due to fluctuations in operating activities and investments in our Contract Capital. The components of Contract Capital
at September 30, 2016 and December 31, 2015 and changes during the Current Period were as follows (amounts in thousands):</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%">
<tr style="vertical-align: bottom">
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, 2016</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, 2015</td><td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td>
    <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Change</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="width: 55%; font-size: 10pt; text-align: left">Costs and estimated earnings in excess of billings on uncompleted contracts	</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">31,989</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">26,905</td><td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td><td style="width: 1%; font-size: 10pt">&nbsp;</td>
    <td style="width: 1%; font-size: 10pt; text-align: left">$</td><td style="width: 12%; font-size: 10pt; text-align: right">(5,084</td><td style="width: 1%; font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Billings in excess of costs and estimated earnings on uncompleted contracts	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(61,896</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(30,556</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">31,340</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Contracts in progress, net <br></td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(29,907</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(3,651</td><td style="font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">26,256</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Contracts receivable, including retainage	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">105,415</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">82,112</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(23,303</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left">Receivables from and equity in construction joint ventures	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">9,469</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">12,930</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">3,461</td><td style="font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left">Inventories	</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">4,000</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">2,535</td><td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt">&nbsp;</td>
    <td style="font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; text-align: right">(1,465</td><td style="font-size: 10pt; text-align: left">)</td></tr>
<tr style="vertical-align: bottom; background-color: rgb(204,238,255)">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Accounts payable	</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(76,861</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(58,959</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td><td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td>
    <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,902</td><td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td></tr>
<tr style="vertical-align: bottom; background-color: White">
    <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt">Contract Capital, net	</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">12,116</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">34,967</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td><td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td>
    <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">22,851</td><td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td></tr>
</table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">The Current Period change in Contract Capital
increased liquidity by $22.9 million. Fluctuations in our Contract Capital balance and its components are not unusual in our business
and are impacted by the size of our projects and changing type and mix of projects in our backlog. Our Contract Capital is particularly
impacted by the timing of new awards and related payments of performing work and the contract billings to the customer as we complete
our projects. Contract Capital is also impacted at period-end by the timing of accounts receivable collections and accounts payable
payments for our projects.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">Other assets increased by $1.3 million in
the Current Period compared to a decrease of $9.3 million in the Prior Period which was primarily due to the sale of our long-term
contract receivable in the Prior Period.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">Cash from operating activities continues to
improve with the quality of our backlog margin. We expect this improvement in backlog margin, along with our focus on project cost
containment and working capital management, to continue into 2017.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0">&nbsp;</p>



<p style="font-size: 10pt; text-align: justify; text-indent: 22.5pt; margin: 0pt 0"></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"><i>Investing Activities. </i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">During the Current Period, net cash used in
investing activities was $6.7 million compared to $6.2 million in the Prior Period. The primary driver of investing activities
cash flows was cash used as collateral for our letter of credit requirements and for use in an escrow account where both amounts
were designated as restricted cash and also investments in capital equipment as discussed below.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Capital equipment is acquired as needed to support changing levels of production activities and to replace retiring
equipment. Expenditures for the replacement of certain equipment and to expand our construction fleet totaled $8.9 million for
the Current Period. Proceeds from the sale of property and equipment totaled $2.2 million for the Current Period with an associated
net gain of $0.3 million. For the Prior Period, expenditures totaled $7.1 million, while proceeds from the sale of property and
equipment totaled $5.9 million with an associated net gain of $1.2 million. The decrease in proceeds in the Current Period was
due to the completion of our Company wide initiative that focused on selling underutilized and non-core assets that was ongoing
in the Prior Period. The level of expenditures in the Current Period increased by $1.8 million compared to the Prior Period. This
increase was the result of the need to replace and expand our construction fleet in strategic areas of our markets in order to
satisfy specific project needs.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Financing Activities.	</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">During the Current Period, net cash provided
by financing activities was $9.6 million compared to cash used of $8.7 million in the Prior Period. The increase in cash provided
by financing activities was primarily a result of net proceeds of $19.1 million received from the issuance of common stock which
was offset by the Revolving Loan payoff and Term Loan monthly payments along with a $5 million prepayment made in the Current Period.
Financing activities in the Prior Period consisted of the net repayments on our Prior Credit Facility of $34.6 million and cumulative
drawdowns on our equipment-based revolver of $13.1 million and cash received from our equipment-based term loan of $19.0 million,
both of which were used to fund our operating activities and replace our Prior Credit Facility. In addition, during the Prior Period,
distributions of $3.4 million were made to a noncontrolling interest member.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0"><i>Cash and Working Capital.</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Cash at September 30, 2016, was
$43.0 million, which increased based on the items mentioned above. Cash includes $2.1 million that was held by our VIE, $14.1 million
belonging to our majority owned joint venture and a $22.9 million increase in contract capital in the Current Period offset by
our net loss attributable to Sterling common stockholders of $2.9 million in the Current Period.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><i>Credit Facility and Other Sources
of Capital</i></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">In addition to our available cash, cash equivalents
and cash provided by operations, from time to time, we use borrowings under our Equipment-based Facility to finance our capital
expenditures and working capital needs.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In May 2015, the Company and its
wholly-owned subsidiaries entered into a $40.0 million loan and security agreement with Nations Fund I, LLC and Nations Equipment
Finance, LLC, as the administrative agent and collateral agent for the lender (&#8220;Nations&#8221;), consisting of a $20.0 million
term loan (the &#8220;Term Loan&#8221;) and a $20.0 million revolving loan (the &#8220;Revolving Loan&#8221; and combined with
the Term Loan, the &#8220;Equipment-based Facility&#8221;), which replaced its prior credit facility. The amount of the Revolving
Loan that may be borrowed from time to time is determined quarterly and may not exceed $20.0 million. In addition, the sum of the
outstanding balance of the Equipment-based Facility may not exceed the lesser of $40.0 million or 65% of the appraised value of
the collateral pledged for the loans. At September 30, 2016, the Company had a borrowing base of approximately $27.0 million, which
was the result of calculating 65% of the appraised value (where appraised value equals net operating liquidated value) of the Company&#8217;s
collateral. At September 30, 2016, we had $9.6 million outstanding on the Term Loan and no outstanding balance on the Revolving
Loan.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Equipment-based Facility bears
interest at an initial fixed annual rate of 12%, which is subject to (i) a decrease of up to two percentage points based on the
Company's fixed charge coverage ratio for each of the most recently ended four quarters beginning with the four quarters ended
June 30, 2016; and (ii) an increase of two percentage points beginning December 31, 2015 based on the fixed charge coverage ratio
at the end of the following two quarters. There have been no interest rate changes during the three and nine months ended September
30, 2016. Principal on the Term Loan is payable in 47 monthly installments (with accrued interest) with a final payment of the
then outstanding principal amount on May 29, 2019. Up to $5.0 million of the Term Loan may be prepaid in any year, but subject
to a pre-payment fee that declines as the Term Loan nears maturity. During the three and nine months ended September 30, 2016,
we prepaid $5 million of the Term Loan and paid $0.2 million in pre-payment fees. The outstanding Revolving Loan is payable in
full on May 29, 2019.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Equipment-based Facility is
secured by all of the Company's personal property, including all of its construction equipment, which forms the basis of availability
under the Revolving Loan. The Equipment-based Facility is also secured by specified equipment of the Company's 50%-owned affiliates,
Road and Highway Builders, LLC and Myers &amp; Sons Construction, L.P. pursuant to a separate security agreement with those entities.
If a default occurs, Nations may exercise the Company's rights in the collateral, with all of the rights of a secured party under
the Uniform Commercial Code, including, among other things, the right to sell the collateral at public or private sale.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company&#8217;s Equipment-based Facility
has no financial covenants; however, it contains restrictions on the Company&#8217;s ability to incur liens and encumbrances or
dispose of a material portion of assets or merge with a third party.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Average borrowings under our Equipment-based
Facility for the Current Quarter and Current Period were $11.0 million and $21.1 million, respectively, and the largest amount
of borrowings was $31.6 million from January 5, 2016 to January 31, 2016. Average combined borrowings under the prior credit facility
and the Equipment-based Facility during the year ended December 31, 2015, were $25.9 million and the largest amount of borrowings
was under the Equipment-based Facility of $34.6 million from June 5, 2015 to June 30, 2015.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Based on our average borrowings
for 2015 and our 2016 forecasted cash needs, we continue to believe that the Company has sufficient liquid financial resources
to fund our requirements for the next twelve months of operations, including our bonding requirements. Furthermore, the Company
is continually assessing ways to increase revenues and reduce costs to improve liquidity. However, in the event of a substantial
cash constraint and if we were unable to secure adequate debt financing, or we continue to incur losses, our working capital could
be materially and adversely affected. Refer to &#8220;Part I, Item 1A. Risk Factors&#8221; in the 2015 Form 10-K for further discussion
of liquidity related risks.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">On May 9, 2016, the Company completed
an underwritten public offering of 5,175,000 shares of the Company&#8217;s common stock, which included the full exercise of the
sole underwriter&#8217;s over-allotment option, at a price to the public of $4.00 per share ($3.77 per share net of underwriting
discounts). The net proceeds from the offering of $19.1 million, after deducting underwriting discounts and other offering expenses,
were used for working capital, repayment of our indebtedness under the revolving loan portion of our Equipment-based Facility and
for general corporate purposes.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</P>

<P STYLE="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">Due to
the continuing improvement in our markets along with several large project wins during the Current Period, we will be exploring
additional capital alternatives to further strengthen our financial position in order to take advantage of this improving transportation
infrastructure market. This would include the potential sale of assets, businesses or equity, the favorable resolution of outstanding
contract claims, refinancing our Equipment-based Facility, or a combination thereof. We expect to use proceeds from these initiatives
to reduce a portion of our debt and for other working capital needs.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><b><i>Inflation</i></b></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0"><b><i>&nbsp;</i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Inflation generally has not had a material
impact on our financial results; however, from time to time, increases in oil, fuel and steel prices have affected our cost of
operations. Anticipated cost increases and reductions are considered in our bids to customers on proposed new construction projects.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Where we are the successful bidder
on a project, we execute purchase orders with material suppliers and contracts with subcontractors covering the prices of most
materials and services, other than oil and fuel products, thereby mitigating future price increases and supply disruptions. These
purchase orders and contracts do not contain quantity guarantees and we have no obligation for materials and services beyond those
required to complete the contracts with our customers. There can be no assurance that increases in prices of oil and fuel used
in our business will be adequately covered by the estimated escalation we have included in our bids and there can be no assurance
that all of our vendors will fulfill their pricing and supply commitments under their purchase orders and contracts with the Company.
We adjust our total estimated costs on our projects when we believe it is probable that we will have cost increases which will
not be recovered from customers, vendors or re-engineering.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b><i>Off-Balance Sheet Arrangements
and Joint Ventures </i></b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">We participate in various construction joint
ventures in order to share expertise, risk and resources for certain highly complex projects. The venture&#8217;s contract with
the project owner typically requires joint and several liability among the joint venture partners. Although our agreements with
our joint venture partners provide that each party will assume and fund its share of any losses resulting from a project, if one
of our partners is unable to pay its share, we would be fully liable for such share under our contract with the project owner.
Circumstances that could lead to a loss under these guarantee arrangements include a partner&#8217;s inability to contribute additional
funds to the venture in the event that the project incurs a loss or additional costs that we could incur should the partner fail
to provide the services and resources toward project completion that had been committed to in the joint venture agreement.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">At September 30, 2016, there was approximately $126 million of construction work to be completed on unconsolidated
construction joint venture contracts, of which $61 million represented our proportionate share. Due to the joint and several liability
under our joint venture arrangements, if one of our joint venture partners fails to perform, we and the remaining joint venture
partners would be responsible for completion of the outstanding work. As of September 30, 2016, we are not aware of any situation
that would require us to fulfill responsibilities of our joint venture partners pursuant to the joint and several liability provisions
under our contracts.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Off-balance sheet arrangements related
to operating leases are discussed in &#8220;Item 7. Management&#8217;s Discussion and Analysis of Financial Condition and Results
of Operations &#8211;Liquidity and Sources of Capital&#8722; Contractual Obligations&#8221; in our 2015 Form 10-K.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;<b>&nbsp;</b></p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p1i3"></a>Item 3. Quantitative
and Qualitative Disclosures about Market Risk</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Changes in interest rates are one
of our sources of market risks. Outstanding indebtedness under our Equipment-based Facility does not bear interest at floating
rates, so our results from operations are not impacted from a change in interest rates. However, our interest rate could increase
by 2% based on our fixed charge coverage ratio as noted above in &#8220;Item 2. Management&#8217;s Discussion and Analysis of Financial
Condition and Results of Operations &#8211; Liquidity and Sources of Capital.&#8221;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">See &#8220;Inflation&#8221; above
regarding risks associated with materials and fuel purchases required to complete our construction contracts.</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p1i4"></a>Item 4. Controls and
Procedures</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b>Evaluation of Disclosure Controls
and Procedures </b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Disclosure controls and procedures
include, but are not limited to, controls and procedures designed to ensure that information required to be disclosed by an issuer
in the reports that it files or submits under the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;),
is accumulated and communicated to the issuer&#8217;s management, including the principal executive and principal financial officers,
or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company&#8217;s principal executive
officer and principal financial officer reviewed and evaluated the Company&#8217;s disclosure controls and procedures (as defined
in Rules 13a-15(e) and 15d-15(e) under the Exchange Act). Based on that evaluation, the Company&#8217;s principal executive officer
and principal financial officer concluded that the Company&#8217;s disclosure controls and procedures were effective at September
30, 2016 to ensure that the information required to be disclosed by the Company in this Report is recorded, processed, summarized
and reported within the time periods specified in the Securities and Exchange Commission&#8217;s rules and forms and is accumulated
and communicated to the Company's management including the principal executive and principal financial officers, as appropriate
to allow timely decisions regarding required disclosure.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b>Changes in Internal Control over
Financial Reporting </b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">There have been no changes in our
internal control over financial reporting (as defined in Rule&nbsp;13a-15(f)&nbsp;under the Exchange Act) during the quarter ended
September&nbsp;30, 2016 that have materially affected, or are reasonably likely to materially affect, our internal control over
financial reporting.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><b>Inherent Limitations on Effectiveness
of Controls</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Internal control over financial
reporting may not prevent or detect all errors and all fraud. Also, projections of any evaluation of effectiveness of internal
control to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that
the degree of compliance with the policies or procedures may deteriorate.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2"></a><b>PART II &#8211; OTHER INFORMATION</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i1"></a>Item 1. Legal Proceedings</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">We are now and may in the future
be involved as a party to various legal proceedings that are incidental to the ordinary course of business. We regularly analyze
current information about these proceedings and, as necessary, provide accruals for probable liabilities on the eventual disposition
of these matters.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In the opinion of management, after
consultation with legal counsel, there are currently no threatened or pending legal matters that would reasonably be expected to
have a material adverse impact on our condensed consolidated results of operations, financial position or cash flows.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i1a"></a>Item 1A. Risk Factors</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">There have not been any material
changes from the risk factors previously disclosed in &#8220;Part I, Item 1A. Risk Factors&#8221; of our 2015 Form 10-K. You should
carefully consider such risk factors, which could materially affect our business, financial condition or future results.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i2"></a>Item 2. Unregistered
Sales of Equity Securities and Use of Proceeds</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">None.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i3"></a>Item 3. Defaults upon
Senior Securities</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">None.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i4"></a>Item 4. Mine Safety
Disclosures</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The information concerning mine
safety violations and other regulatory matters required by section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection
Act and Item 104 of Regulation S-K is included in Exhibit 95.1 of this Quarterly Report on Form 10-Q, which is incorporated by
reference.</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i5"></a>Item 5. Other Information</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">None.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; font-weight: bold; text-align: left; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="p2i6"></a>Item 6. Exhibits</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left; border-bottom: Black 1pt solid">Exhibit No.</td><td style="width: 5pt"></td><td style="text-align: justify; border-bottom: Black 1pt solid">Description</td>
</tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">31.1*</td><td style="width: 5pt"></td><td style="text-align: justify">Certification of Paul J. Varello, Chief Executive Officer of Sterling Construction
Company, Inc.</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">31.2*</td><td style="width: 5pt"></td><td style="text-align: justify">Certification of Ronald A. Ballschmiede, Chief Financial Officer of Sterling Construction
Company, Inc.</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">32*</td><td style="width: 5pt"></td><td style="text-align: justify">Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States
Code (18 U.S.C. 1350) of Paul J. Varello, Chief Executive Officer, and Ronald A. Ballschmiede, Chief Financial Officer</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">95.1*</td><td style="width: 5pt"></td><td style="text-align: justify">Mine Safety Disclosure</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.INS*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Instance Document</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.SCH*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Taxonomy Extension Schema Document</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.CAL*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Taxonomy Extension Calculation Linkbase Document</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.DEF*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Taxonomy Extension Definition Linkbase Document</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.LAB*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Taxonomy Extension Label Linkbase Document</td>
</tr></table>

<table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 100%"><tr style="vertical-align: top; text-align: justify">
<td style="width: 75pt; text-align: left">101.PRE*</td><td style="width: 5pt"></td><td style="text-align: justify">XBRL Taxonomy Extension Presentation Linkbase Document</td>
</tr></table>

<p style="font-size: 10pt; text-align: justify; text-indent: -0.5in; margin: 0pt 0.05in 0pt 0.5in">________________</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">* Filed herewith.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></p>

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<p style="font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><a name="sign"></a>SIGNATURES</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Pursuant to the requirements
of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<table cellspacing="0" cellpadding="0" style="width: 100%; border-collapse: collapse; font-size: 10pt">
<tr style="vertical-align: top">
    <td style="width: 50%; text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="width: 50%; text-align: justify"><b>STERLING CONSTRUCTION COMPANY, INC.</b></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">Date: October 31, 2016</td>
    <td style="text-align: justify">By: <u>/s/ Paul J. Varello</u></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify; padding-left: 20pt">Paul J. Varello</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify; padding-left: 20pt">Chief Executive Officer</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify">&nbsp;</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">Date: October 31, 2016</td>
    <td style="text-align: justify">By: <u>/s/ Ronald A. Ballschmiede</u></td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify; padding-left: 20pt">Ronald A. Ballschmiede</td></tr>
<tr style="vertical-align: top">
    <td style="text-align: justify; text-indent: 0in">&nbsp;</td>
    <td style="text-align: justify; padding-left: 20pt">Chief Financial Officer</td></tr>
</table>


<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b></b></p>

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<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>STERLING CONSTRUCTION COMPANY,
INC.</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>Quarterly Report on Form 10-Q
for Period Ended September 30, 2016</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>Exhibit Index</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><b>&nbsp;</b></p>

<p style="font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<table cellspacing="0" cellpadding="0" style="width: 100%; font-size: 10pt">
<tr style="vertical-align: bottom">
    <td nowrap style="border-bottom: Black 1pt solid; text-align: left; text-indent: 0in; width: 12%"><b>Exhibit No.</b></td>
    <td style="text-align: justify; text-indent: 0.25in; width: 1%">&nbsp;</td>
    <td nowrap style="border-bottom: Black 1pt solid; text-align: center; text-indent: 0.25in; width: 87%"><b>Description</b></td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0.25in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">31.1*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top">Certification of Paul J. Varello, Chief Executive Officer of Sterling Construction Company, Inc.</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0.25in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">31.2*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">Certification of Ronald A. Ballschmiede, Chief Financial Officer of Sterling Construction Company, Inc.</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0.25in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">32*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) of Paul J. Varello, Chief Executive Officer, and Ronald A. Ballschmiede, Chief Financial Officer.</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0.25in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">95.1*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">Mine Safety Disclosure</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0.25in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.INS*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Instance Document</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.SCH*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Taxonomy Extension Schema Document</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.CAL*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Taxonomy Extension Calculation Linkbase Document</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.DEF*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Taxonomy Extension Definition Linkbase Document</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.LAB*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Taxonomy Extension Label Linkbase Document</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left; text-indent: 0in">&nbsp;</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">&nbsp;</td></tr>
<tr>
    <td style="vertical-align: top; text-align: left">101.PRE*</td>
    <td style="vertical-align: bottom; text-align: justify; text-indent: 0.25in">&nbsp;</td>
    <td style="vertical-align: top; text-align: justify; text-indent: 0in">XBRL Taxonomy Extension Presentation Linkbase Document</td></tr>
</table>
<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: -0.5in; margin: 0pt 0.05in 0pt 0.5in">________________</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in">* Filed herewith.</p>

<p style="font-size: 10pt; text-align: justify; text-indent: -0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: left; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

<p style="font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</p>

</body></HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>exh_311.htm
<DESCRIPTION>EXHIBIT 31.1
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: right; text-indent: 0.25in">Exhibit 31.1</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: right; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0in">I, Paul J.
Varello, certify that:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">1.</TD><TD STYLE="text-align: justify">I have reviewed this Quarterly Report on Form 10-Q of Sterling Construction Company, Inc.;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.</TD><TD STYLE="text-align: justify">Based on my knowledge, this report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.</TD><TD STYLE="text-align: justify">Based on my knowledge, the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant
as of, and for, the periods presented in this report;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">4.</TD><TD STYLE="text-align: justify">The registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD STYLE="text-align: justify">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures
to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being
prepared;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD STYLE="text-align: justify">Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(c)</TD><TD STYLE="text-align: justify">Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented
in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered
by this report based on such evaluation; and</TD></TR></TABLE>

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

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

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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD STYLE="text-align: justify">All significant deficiencies and material weaknesses in the design or operation of internal control
over financial reporting which are reasonably likely to adversely affect the registrant&rsquo;s ability to record, process, summarize
and report financial information; and</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD STYLE="text-align: justify">Any fraud, whether or not material, that involves management or other employees who have a significant
role in the registrant&rsquo;s internal control over financial reporting.</TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">Date: October
31, 2016</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in"></P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 10%; text-align: center">By:</TD>
    <TD STYLE="width: 30%; border-bottom: Black 1pt solid">/s/
Paul J. Varello </TD>
    <TD STYLE="width: 60%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>Paul
J. Varello</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>Chief
Executive Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>


<P STYLE="margin: 0"></P>

</BODY>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.2
<SEQUENCE>3
<FILENAME>exh_312.htm
<DESCRIPTION>EXHIBIT 31.2
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: right; text-indent: 0.25in">Exhibit 31.2</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: right; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0in">I, Ronald
A. Ballschmiede, certify that:</P>

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">1.</TD><TD STYLE="text-align: justify">I have reviewed this Quarterly Report on Form 10-Q of Sterling Construction Company, Inc.;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">2.</TD><TD STYLE="text-align: justify">Based on my knowledge, this report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this report;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">3.</TD><TD STYLE="text-align: justify">Based on my knowledge, the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant
as of, and for, the periods presented in this report;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0"></TD><TD STYLE="width: 0.25in">4.</TD><TD STYLE="text-align: justify">The registrant&rsquo;s other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD STYLE="text-align: justify">Designed such disclosure controls and procedures, or caused such disclosure controls and procedures
to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being
prepared;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD STYLE="text-align: justify">Designed such internal control over financial reporting, or caused such internal control over financial
reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(c)</TD><TD STYLE="text-align: justify">Evaluated the effectiveness of the registrant&rsquo;s disclosure controls and procedures and presented
in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered
by this report based on such evaluation; and</TD></TR></TABLE>

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

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

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

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

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(a)</TD><TD STYLE="text-align: justify">All significant deficiencies and material weaknesses in the design or operation of internal control
over financial reporting which are reasonably likely to adversely affect the registrant&rsquo;s ability to record, process, summarize
and report financial information; and</TD></TR></TABLE>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 0.25in"></TD><TD STYLE="width: 0.25in">(b)</TD><TD STYLE="text-align: justify">Any fraud, whether or not material, that involves management or other employees who have a significant
role in the registrant&rsquo;s internal control over financial reporting.</TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">Date: October
31, 2016</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 10%; text-align: center">By:</TD>
    <TD STYLE="width: 30%; border-bottom: Black 1pt solid">/s/
Ronald A. Ballschmiede</TD>
    <TD STYLE="width: 60%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>Ronald
A. Ballschmiede</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>Chief
Financial Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>


<P STYLE="margin: 0"></P>

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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32
<SEQUENCE>4
<FILENAME>exh_32.htm
<DESCRIPTION>EXHIBIT 32
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: right; text-indent: 0.25in">Exhibit 32</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center; text-indent: 0in"><B>Certification by the
Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in"><B>&#9;</B>Pursuant
to 18 U.S.C. 1350, each of the undersigned officers of Sterling Construction Company, Inc., a Delaware corporation (the &ldquo;Company&rdquo;),
does hereby certify that the Company&rsquo;s Quarterly Report on Form 10-Q for the quarter ended September 30, 2016 (the &ldquo;<I>Report</I>&rdquo;)
fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and the information contained
in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>


<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 10%">Dated:</TD>
    <TD STYLE="width: 20%">October
31, 2016</TD>
    <TD STYLE="width: 10%; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 30%; border-bottom: Black 1pt solid">/s/
Paul
J. Varello</TD>
    <TD STYLE="width: 30%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Paul
J. Varello</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Chief
Executive Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 10%">Dated:</TD>
    <TD STYLE="width: 20%">October
31, 2016</TD>
    <TD STYLE="width: 10%; text-align: center">&nbsp;</TD>
    <TD STYLE="width: 30%; border-bottom: Black 1pt solid">/s/
Ronald A. Ballschmiede</TD>
    <TD STYLE="width: 30%">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Ronald
A. Ballschmiede</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Chief
Financial Officer</TD>
    <TD>&nbsp;</TD></TR>
</TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0.05in 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</P>



<P STYLE="margin: 0"></P>

</BODY>
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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-95.1
<SEQUENCE>5
<FILENAME>exh_951.htm
<DESCRIPTION>EXHIBIT 95.1
<TEXT>
<HTML>
<HEAD>
     <TITLE></TITLE>
</HEAD>
<BODY STYLE="font: 10pt Times New Roman, Times, Serif">

<P STYLE="margin: 0"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in"><B>Exhibit 95.1</B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">We operate the following surface mine in Nevada
to produce construction aggregates:</P>

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

<TABLE CELLPADDING="0" CELLSPACING="0" WIDTH="100%" STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"><TR STYLE="vertical-align: top">
<TD STYLE="width: 1in"></TD><TD STYLE="width: 0.25in">1.</TD><TD>Portable Crusher #1006 &ndash; MSHA ID #2602200</TD></TR></TABLE>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">Section 1503 of the Dodd-Frank Wall Street
Reform and Consumer Protection Act requires domestic mine operators to disclose violations and orders issued under the Federal
Mine Safety and Health Act of 1977 (the &ldquo;Mine Act&rdquo;) by the federal Mine Safety and Health Administration (&ldquo;MSHA&rdquo;).</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">During the three months ended September 30,
2016, with respect to our mines:</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%">
<TR>
    <TD STYLE="width: 48px">&nbsp;</TD>
    <TD>&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">MSHA issued 10 </FONT>citations for health or safety standards that could significantly and substantially contribute to a serious injury if left unabated under &sect;104 of the Mine Act. The fines related to these citations totaled $1,140.&nbsp;&nbsp;The citation issues were all resolved during the three months ended September 30, 2016.&nbsp;&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">MSHA did not issue any orders requiring persons to be withdrawn from the areas affected by any alleged violations of mandatory health or safety standards under Section 104(b) of the Mine Act.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">MSHA did not issue any citations and orders for an alleged unwarrantable failure of the mine operator to comply with mandatory health or safety standards under Section 104(d) of the Mine Act.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt;width: 48px"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">MSHA did not identify any flagrant violations under Section 110(b)(2) of the Mine Act.</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">MSHA did not issue any imminent danger orders requiring immediate withdrawal from the affected areas under Section 107(a) of the Mine Act.</FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">We did not experience any mining-related fatalities. </FONT></TD></TR>

<TR STYLE="vertical-align: top">
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">&bull;</FONT></TD>
    <TD STYLE="text-indent: 0in; font-size: 10pt"><FONT STYLE="font-family: Times New Roman, Times, Serif">We did not receive written notice of a pattern of violations of mandatory health or safety standards from MSHA under Section 104(e) of the Mine Act or written notice of the potential to have a pattern of violations of mandatory health or safety standards from MSHA. </FONT></TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">&nbsp;</P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-indent: 0in">There were no pending legal actions before
the Federal Mine Safety and Health Review Commission related to the three months ended September 30, 2016.</P>

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

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



<P STYLE="margin: 0"></P>

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<DOCUMENT>
<TYPE>EX-101.INS
<SEQUENCE>6
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<DESCRIPTION>XBRL INSTANCE FILE
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  <strl:DebtInstrumentPercentageOfAppraisedValueOfCollateral contextRef="i_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="4" id="c10352549" unitRef="xbrli-pure">0.65</strl:DebtInstrumentPercentageOfAppraisedValueOfCollateral>
  <strl:EstimatedConstructionGrossProfitLossBeforeTax contextRef="d_2016-07-01_2016-09-30_IncomeStatementLocationAxis-OperatingIncomeLossMember" decimals="-5" id="c10352211" unitRef="iso4217-usd">-600000</strl:EstimatedConstructionGrossProfitLossBeforeTax>
  <strl:EstimatedConstructionGrossProfitLossBeforeTax contextRef="d_2016-01-01_2016-09-30_IncomeStatementLocationAxis-OperatingIncomeLossMember" decimals="-5" id="c10352212" unitRef="iso4217-usd">-1100000</strl:EstimatedConstructionGrossProfitLossBeforeTax>
  <strl:EstimatedConstructionGrossProfitLossBeforeTax contextRef="d_2015-07-01_2015-09-30_IncomeStatementLocationAxis-OperatingIncomeLossMember" decimals="-5" id="c10352214" unitRef="iso4217-usd">-1100000</strl:EstimatedConstructionGrossProfitLossBeforeTax>
  <strl:EstimatedConstructionGrossProfitLossBeforeTax contextRef="d_2015-01-01_2015-09-30_IncomeStatementLocationAxis-OperatingIncomeLossMember" decimals="-5" id="c10352216" unitRef="iso4217-usd">-12300000</strl:EstimatedConstructionGrossProfitLossBeforeTax>
  <strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10351997" unitRef="iso4217-usd">3196000</strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests>
  <strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10351998" unitRef="iso4217-usd">1326000</strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests>
  <strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10351999" unitRef="iso4217-usd">-1570000</strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests>
  <strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352000" unitRef="iso4217-usd">-16338000</strl:IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests>
  <strl:IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352121" unitRef="iso4217-usd">-3972000</strl:IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings>
  <strl:IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352122" unitRef="iso4217-usd">1101000</strl:IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings>
  <strl:IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352111" unitRef="iso4217-usd">-3461000</strl:IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures>
  <strl:IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352112" unitRef="iso4217-usd">1936000</strl:IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures>
  <strl:InterestExpenseAndAccretedInterest contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10351989" unitRef="iso4217-usd">491000</strl:InterestExpenseAndAccretedInterest>
  <strl:InterestExpenseAndAccretedInterest contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10351990" unitRef="iso4217-usd">1087000</strl:InterestExpenseAndAccretedInterest>
  <strl:InterestExpenseAndAccretedInterest contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10351991" unitRef="iso4217-usd">2176000</strl:InterestExpenseAndAccretedInterest>
  <strl:InterestExpenseAndAccretedInterest contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10351992" unitRef="iso4217-usd">2103000</strl:InterestExpenseAndAccretedInterest>
  <strl:LongTermDebtCurrentGross contextRef="i_2016-09-30" decimals="-3" id="c10352585" unitRef="iso4217-usd">5009000</strl:LongTermDebtCurrentGross>
  <strl:LongTermDebtCurrentGross contextRef="i_2015-12-31" decimals="-3" id="c10352586" unitRef="iso4217-usd">5192000</strl:LongTermDebtCurrentGross>
  <strl:MembersInterestSubjectToMandatoryRedemption contextRef="i_2016-09-30" decimals="-3" id="c10352385" unitRef="iso4217-usd">40000000</strl:MembersInterestSubjectToMandatoryRedemption>
  <strl:MembersInterestSubjectToMandatoryRedemption contextRef="i_2015-12-31" decimals="-3" id="c10352386" unitRef="iso4217-usd">40000000</strl:MembersInterestSubjectToMandatoryRedemption>
  <strl:MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings contextRef="i_2016-09-30" decimals="-3" id="c10352389" unitRef="iso4217-usd">46466000</strl:MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings>
  <strl:MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings contextRef="i_2015-12-31" decimals="-3" id="c10352390" unitRef="iso4217-usd">50438000</strl:MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings>
  <strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1 contextRef="d_2016-01-01_2016-09-30_StatementEquityComponentsAxis-RetainedEarningsMember" decimals="-3" id="c10352061" unitRef="iso4217-usd">-2890000</strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1>
  <strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1 contextRef="d_2016-01-01_2016-09-30_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352062" unitRef="iso4217-usd">1252000</strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1>
  <strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1 contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352063" unitRef="iso4217-usd">-1638000</strl:NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1>
  <strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10352035" unitRef="iso4217-usd">740000</strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity>
  <strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10352036" unitRef="iso4217-usd">1109000</strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity>
  <strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352037" unitRef="iso4217-usd">1252000</strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity>
  <strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352038" unitRef="iso4217-usd">2948000</strl:NetincomeAttributableToNoncontrollingInterestIncludedInequity>
  <strl:NoncontrollingInterestInBacklog contextRef="i_2016-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352415" unitRef="iso4217-usd">60947000</strl:NoncontrollingInterestInBacklog>
  <strl:NoncontrollingInterestInBacklog contextRef="i_2015-12-31_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352416" unitRef="iso4217-usd">11748000</strl:NoncontrollingInterestInBacklog>
  <strl:NumberOfProjectsWithClaims contextRef="i_2016-09-30_StatementGeographicalAxis-TexasMember" decimals="INF" id="c10352219" unitRef="xbrli-pure">2</strl:NumberOfProjectsWithClaims>
  <strl:OwnershipInterestInJointVenture contextRef="d_2016-01-01_2016-09-30" decimals="INF" id="c10352198" unitRef="xbrli-pure">0.5</strl:OwnershipInterestInJointVenture>
  <strl:OwnershipInterestInJointVenture contextRef="d_2016-01-01_2016-09-30_RangeAxis-MinimumMember" decimals="INF" id="c10352200" unitRef="xbrli-pure">0.5</strl:OwnershipInterestInJointVenture>
  <strl:ReceivablesFromAndEquityInConstructionJointVenture contextRef="i_2016-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352417" unitRef="iso4217-usd">9469000</strl:ReceivablesFromAndEquityInConstructionJointVenture>
  <strl:ReceivablesFromAndEquityInConstructionJointVenture contextRef="i_2015-12-31_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352418" unitRef="iso4217-usd">12930000</strl:ReceivablesFromAndEquityInConstructionJointVenture>
  <strl:ReceivablesFromAndEquityInConstructionJointVenture contextRef="i_2016-09-30" decimals="-3" id="c10351889" unitRef="iso4217-usd">9469000</strl:ReceivablesFromAndEquityInConstructionJointVenture>
  <strl:ReceivablesFromAndEquityInConstructionJointVenture contextRef="i_2015-12-31" decimals="-3" id="c10351890" unitRef="iso4217-usd">12930000</strl:ReceivablesFromAndEquityInConstructionJointVenture>
  <strl:RepaymentsOfLongTermDebtPrepaymentPenalty contextRef="d_2016-07-01_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember_IncomeStatementLocationAxis-InterestExpenseMember" decimals="-5" id="c10352552" unitRef="iso4217-usd">200000</strl:RepaymentsOfLongTermDebtPrepaymentPenalty>
  <strl:RevenueRecognitionPercentageOfCompletionRange contextRef="d_2016-01-01_2016-09-30_RangeAxis-MinimumMember" id="c10352204">P1Y</strl:RevenueRecognitionPercentageOfCompletionRange>
  <strl:RevenueRecognitionPercentageOfCompletionRange contextRef="d_2016-01-01_2016-09-30_RangeAxis-MaximumMember" id="c10352205">P3Y</strl:RevenueRecognitionPercentageOfCompletionRange>
  <strl:ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-18">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left"&gt;Balance, beginning of period &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;(91&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;7,462&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Net income attributable to noncontrolling interest included in equity &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,252&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,948&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt"&gt;Distributions to noncontrolling interest owners&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(3,402&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt"&gt;Balance, end of period &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;1,161&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;7,008&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</strl:ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock>
  <strl:ScheduleOfComponentsOfAgreementObligationTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-17">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2016&lt;/div&gt;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;December 31,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2015&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left; text-indent: 0in"&gt;Members&amp;#x2019; interest subject to mandatory redemption &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;40,000&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;40,000&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in"&gt;Net accumulated earnings &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;6,466&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,438&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt"&gt;Total liability &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;46,466&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;50,438&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</strl:ScheduleOfComponentsOfAgreementObligationTableTextBlock>
  <strl:SettlementOffer contextRef="d_2016-01-01_2016-09-30_BalanceSheetLocationAxis-OtherCurrentLiabilitiesMember_IncomeStatementLocationAxis-CostsOfRevenueMember" decimals="-6" id="c10352355" unitRef="iso4217-usd">1000000</strl:SettlementOffer>
  <strl:SharePriceNet contextRef="i_2016-05-09_SubsidiarySaleOfStockAxis-DADavidsonAndCoMember" decimals="INF" id="c10352488" unitRef="iso4217-usd-per-xbrli-shares">3.77</strl:SharePriceNet>
  <strl:UndistributedEarningsOfDomesticSubsidiariesNet contextRef="i_2016-09-30" decimals="-3" id="c10352387" unitRef="iso4217-usd">6466000</strl:UndistributedEarningsOfDomesticSubsidiariesNet>
  <strl:UndistributedEarningsOfDomesticSubsidiariesNet contextRef="i_2015-12-31" decimals="-3" id="c10352388" unitRef="iso4217-usd">10438000</strl:UndistributedEarningsOfDomesticSubsidiariesNet>
  <strl:VariableInterestEntitiesTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344740">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0.25in"&gt;8.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Variable Interest Entities&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company owns a 50% interest in Myers &amp;amp; Sons Construction, L.P. (&amp;#x201c;Myers&amp;#x201d;), of which it is the primary beneficiary and has consolidated Myers into the Company&amp;#x2019;s financial statements. Because the Company exercises primary control over activities of the partnership and it is exposed to the majority of potential losses of the partnership, the Company has consolidated Myers within the Company&amp;#x2019;s financial statements since August 1, 2011, the date of acquisition. Refer to Note 3 of the Notes to Consolidated Financial Statements included in the 2015 Form 10-K for additional information on the acquisition of this limited partnership.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The condensed financial information of Myers, which is reflected in the Company&amp;#x2019;s condensed consolidated balance sheets and statements of operations, is as follows (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, &lt;br /&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;December 31, &lt;br /&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Assets:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Current assets: &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Cash and cash equivalents &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;2,074&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;3,226&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Contracts receivable, including retainage &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,107&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,941&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other current assets &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,052&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;15,887&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 20pt"&gt;Total current assets &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;37,233&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;39,054&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Property and equipment, net &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,279&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,080&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt"&gt;Goodwill &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;1,501&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;1,501&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt"&gt;Total assets &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;49,013&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;50,635&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Liabilities:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Current liabilities: &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Accounts payable &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,907&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;20,596&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other current liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;11,541&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,986&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 20pt"&gt;Total current liabilities &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;37,448&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;31,582&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Long-term liabilities:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other long-term liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;425&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;3,370&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt"&gt;Total liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;37,873&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;34,952&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;Nine Months Ended&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 40%; font-size: 10pt; text-align: left; text-indent: 0in"&gt;Revenues &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;50,739&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;43,444&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;121,649&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;134,035&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Operating income &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,720&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,216&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;4,894&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,885&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt; text-indent: -10pt"&gt;Net income attributable to Sterling common stockholders&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,357&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,108&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,440&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,941&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; 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  <us-gaap:AssetsNet contextRef="i_2015-12-31_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352412" unitRef="iso4217-usd">-32059000</us-gaap:AssetsNet>
  <us-gaap:BasisOfAccountingPolicyPolicyTextBlock contextRef="d_2016-01-01_2016-09-30" id="c10353858">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Presentation&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (&amp;#x201c;SEC&amp;#x201d;) and should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2015 (&amp;#x201c;2015 Form 10-K&amp;#x201d;). Certain information and note disclosures prepared in accordance with accounting principles generally accepted in the United States of America (&amp;#x201c;GAAP&amp;#x201d;) have been either condensed or omitted pursuant to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company&amp;#x2019;s financial position at September 30, 2016 and the results of operations and cash flows for the periods presented. The December 31, 2015 condensed consolidated balance sheet data herein was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:BasisOfAccountingPolicyPolicyTextBlock>
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  <us-gaap:CashAndCashEquivalentsDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344729">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;2.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Cash and Cash Equivalents and Restricted Cash&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company considers all highly liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents include cash balances held by our wholly owned subsidiaries, as well as cash held by majority owned subsidiaries, construction joint ventures, and the Company&amp;#x2019;s VIE that we consolidate. Refer to Note 8 for more information regarding the Company&amp;#x2019;s consolidated VIE. Joint venture cash balances are limited to joint venture activities and are not available for other projects, general cash needs or distribution to us without approval of the board of directors, or equivalent body, of the respective joint ventures. At September 30, 2016 and December 31, 2015, cash and cash equivalents included $14.1 million and a minimal amount, respectively, belonging to a majority-owned joint venture which generally cannot be used for purposes outside the joint venture.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Restricted cash of approximately $3.0 million is included in &amp;#x201c;other assets, net&amp;#x201d; on the condensed consolidated balance sheets as of September 30, 2016 and December 31, 2015, and represents cash deposited by the Company into a separate account and designated as collateral for a standby letter of credit in the same amount in accordance with contractual agreements.&amp;nbsp;Refer to Note 5 for more information about our standby letter of credit. In addition, restricted cash of approximately $2.0 million is included in &amp;#x201c;other current assets&amp;#x201d; on the condensed consolidated balances sheet as of September 30, 2016 and December 31, 2015, which represents cash deposited by a customer, for the benefit of the Company, in an escrow account which is restricted until the customer releases the restriction upon the completion of the job.&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company holds cash on deposit in U.S. banks, at times, in excess of federally insured limits. Management does not believe that the risk associated with keeping cash deposits in excess of federal deposit insurance limits represents a material risk.&lt;/div&gt;&lt;/div&gt;</us-gaap:CashAndCashEquivalentsDisclosureTextBlock>
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  <us-gaap:CommitmentsAndContingencies contextRef="i_2016-09-30" id="c10351929" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:CommitmentsAndContingencies contextRef="i_2015-12-31" id="c10351930" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:CommitmentsAndContingenciesDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344733">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;5.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Commitments and Contingencies&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company is required by our insurance provider to obtain and hold a standby letter of credit. This letter of credit serves as a guarantee by the banking institution to pay our insurance provider the incurred claim costs attributable to our general liability, workers compensation and automobile liability claims, up to the amount stated in the standby letter of credit, in the event that these claims were not paid by the Company. Due to the change to our Equipment-based Facility, we have cash collateralized the letter of credit, resulting in the cash being designated as restricted. Refer to Note 2 for more information on our restricted cash.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;During the first six months of 2016, the Company recorded a legal reserve of $1.0 million as a result of a dispute between one of the Company&amp;#x2019;s wholly-owned subsidiaries and a subcontractor. This amount was recorded as &amp;#x201c;cost of revenues&amp;#x201d; in our condensed statements of operations and was settled for $1.0 million during the second quarter of 2016. This matter is now resolved in its entirety.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company is the subject of certain other claims and lawsuits occurring in the normal course of business. Management, after consultation with legal counsel, does not believe that the outcome of these actions will have a material impact on the condensed consolidated financial statements of the Company.&lt;/div&gt;&lt;/div&gt;</us-gaap:CommitmentsAndContingenciesDisclosureTextBlock>
  <us-gaap:CommonStockParOrStatedValuePerShare contextRef="i_2016-09-30" decimals="INF" id="c10351943" unitRef="iso4217-usd-per-xbrli-shares">0.01</us-gaap:CommonStockParOrStatedValuePerShare>
  <us-gaap:CommonStockParOrStatedValuePerShare contextRef="i_2015-12-31" decimals="INF" id="c10351944" unitRef="iso4217-usd-per-xbrli-shares">0.01</us-gaap:CommonStockParOrStatedValuePerShare>
  <us-gaap:CommonStockSharesAuthorized contextRef="i_2016-09-30" decimals="INF" id="c10351945" unitRef="xbrli-shares">28000000</us-gaap:CommonStockSharesAuthorized>
  <us-gaap:CommonStockSharesAuthorized contextRef="i_2015-12-31" decimals="INF" id="c10351946" unitRef="xbrli-shares">28000000</us-gaap:CommonStockSharesAuthorized>
  <us-gaap:CommonStockSharesIssued contextRef="i_2016-09-30" decimals="INF" id="c10351947" unitRef="xbrli-shares">25002964</us-gaap:CommonStockSharesIssued>
  <us-gaap:CommonStockSharesIssued contextRef="i_2015-12-31" decimals="INF" id="c10351948" unitRef="xbrli-shares">19753170</us-gaap:CommonStockSharesIssued>
  <us-gaap:CommonStockValue contextRef="i_2016-09-30" decimals="-3" id="c10351941" unitRef="iso4217-usd">250000</us-gaap:CommonStockValue>
  <us-gaap:CommonStockValue contextRef="i_2015-12-31" decimals="-3" id="c10351942" unitRef="iso4217-usd">198000</us-gaap:CommonStockValue>
  <us-gaap:ComprehensiveIncomeNetOfTax contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10352048" unitRef="iso4217-usd">3155000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:ComprehensiveIncomeNetOfTax contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10352049" unitRef="iso4217-usd">1383000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:ComprehensiveIncomeNetOfTax contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352050" unitRef="iso4217-usd">-1638000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:ComprehensiveIncomeNetOfTax contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352051" unitRef="iso4217-usd">-16229000</us-gaap:ComprehensiveIncomeNetOfTax>
  <us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest contextRef="d_2016-01-01_2016-09-30_LegalEntityAxis-SubsidiariesMember" decimals="-3" id="c10352393" unitRef="iso4217-usd">1252000</us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest>
  <us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest contextRef="d_2015-01-01_2015-09-30_LegalEntityAxis-SubsidiariesMember" decimals="-3" id="c10352394" unitRef="iso4217-usd">2948000</us-gaap:ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest>
  <us-gaap:ConsolidationPolicyTextBlock contextRef="d_2016-01-01_2016-09-30" id="c10353859">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Principles of Consolidation&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities. For investments in subsidiaries and construction joint ventures that are not wholly-owned, but where the Company exercises control, the equity held by the remaining owners and their portions of net income (loss) are reflected in the balance sheet line item &amp;#x201c;Noncontrolling interests&amp;#x201d; in &amp;#x201c;Equity&amp;#x201d; and the statement of operations line item &amp;#x201c;Noncontrolling owners&amp;#x2019; interests in earnings of subsidiaries and joint ventures,&amp;#x201d; respectively. All significant intercompany accounts and transactions have been eliminated in consolidation. For all years presented, the Company had no subsidiaries where its ownership interests were less than 50%.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Where the Company is a noncontrolling joint venture partner, and otherwise not required to consolidate the joint venture entity, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line item (&amp;#x201c;Receivables from and equity in construction joint ventures&amp;#x201d;) in the condensed consolidated balance sheets. This method is an acceptable modification of the equity method of accounting which is a common practice in the construction industry. Refer to Note 7 for further information regarding the Company&amp;#x2019;s construction joint ventures.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Under GAAP, the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity (&amp;#x201c;VIE&amp;#x201d;). This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring the Company to consolidate the entity in which it has a noncontrolling variable interest. Refer to Note 8 for further information regarding the Company&amp;#x2019;s consolidated VIE.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:ConsolidationPolicyTextBlock>
  <us-gaap:ConstructionRevenue contextRef="d_2016-07-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352429" unitRef="iso4217-usd">6103000</us-gaap:ConstructionRevenue>
  <us-gaap:ConstructionRevenue contextRef="d_2015-07-01_2015-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352430" unitRef="iso4217-usd">3437000</us-gaap:ConstructionRevenue>
  <us-gaap:ConstructionRevenue contextRef="d_2016-01-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352431" unitRef="iso4217-usd">17567000</us-gaap:ConstructionRevenue>
  <us-gaap:ConstructionRevenue contextRef="d_2015-01-01_2015-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352432" unitRef="iso4217-usd">19986000</us-gaap:ConstructionRevenue>
  <us-gaap:ContractsReceivableClaimsAndUncertainAmounts contextRef="i_2016-09-30_BalanceSheetLocationAxis-CostsAndEstimatedEarningsInExcessOfBillingsMember" decimals="-5" id="c10352226" unitRef="iso4217-usd">9100000</us-gaap:ContractsReceivableClaimsAndUncertainAmounts>
  <us-gaap:ContractsReceivableClaimsAndUncertainAmounts contextRef="i_2015-12-31_BalanceSheetLocationAxis-CostsAndEstimatedEarningsInExcessOfBillingsMember" decimals="-5" id="c10352232" unitRef="iso4217-usd">5200000</us-gaap:ContractsReceivableClaimsAndUncertainAmounts>
  <us-gaap:CostOfGoodsSold contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10351965" unitRef="iso4217-usd">188597000</us-gaap:CostOfGoodsSold>
  <us-gaap:CostOfGoodsSold contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10351966" unitRef="iso4217-usd">161542000</us-gaap:CostOfGoodsSold>
  <us-gaap:CostOfGoodsSold contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10351967" unitRef="iso4217-usd">484827000</us-gaap:CostOfGoodsSold>
  <us-gaap:CostOfGoodsSold contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10351968" unitRef="iso4217-usd">454374000</us-gaap:CostOfGoodsSold>
  <us-gaap:CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear contextRef="i_2016-09-30" decimals="-3" id="c10351885" unitRef="iso4217-usd">31989000</us-gaap:CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear>
  <us-gaap:CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear contextRef="i_2015-12-31" decimals="-3" id="c10351886" unitRef="iso4217-usd">26905000</us-gaap:CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear>
  <us-gaap:DebtDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344746">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;11.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Debt&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Debt consists of the following (in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2016&lt;/div&gt;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;December 31,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2015&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Equipment-based Facility &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less deferred loan costs &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(891&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(1,119&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in; padding-left: 10pt"&gt;Equipment-based Facility, net &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;8,662&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;16,838&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt"&gt;Notes payable for transportation and construction equipment and other &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;2,943&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;3,342&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;11,605&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;20,180&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Current maturities of long-term debt &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,009&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,192&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less current deferred loan costs &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(356&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(336&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in; padding-left: 10pt"&gt;Less current maturities of long-term debt, net &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(4,653&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(4,856&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in"&gt;Total long-term debt &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;6,952&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;15,324&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Equipment-based Facility&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;At September 30, 2016, the Company had a borrowing base of $27.0 million, which was the result of calculating 65% of the appraised value (where appraised value equals net operating liquidated value) of the Company&amp;#x2019;s collateral.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;During the three months ended September 30, 2016 the Company prepaid $5 million of the principal balance of our Term Loan and paid approximately $0.2 million as a prepayment fee which was recorded as &amp;#x201c;interest expense&amp;#x201d; in our condensed consolidated statement of operations.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Fair Value&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company&amp;#x2019;s debt is recorded at its carrying amount in the condensed consolidated balance sheets. The Company uses an income approach to determine the fair value of its 12% Term Loan due May 29, 2019 using estimated cash flows, which is a Level&amp;nbsp;3 fair value measurement. As of September 30, 2016, the carrying values and fair values are as follows (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, 2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;December 31, 2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Carrying Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Fair Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Carrying Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Fair Value&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Revolving Loan &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Term Loan &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;9,527&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in"&gt;Total Equipment-based Facility debt &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;9,527&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Notes Payable for Transportation and Construction Equipment&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company has purchased and financed various transportation and construction equipment to enhance the Company&amp;#x2019;s fleet of equipment. The total long-term notes payable related to the purchase of financed equipment was $2.9 million at September 30, 2016 and $3.3 million at December 31, 2015. The purchases have payment terms ranging from 3 to 5 years and the associated interest rates range from 3.12% to 7.13%. The fair value of these notes payable approximates their book value.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Interest Expense&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Interest expense related to our Equipment-based Facility and other debt for the three and nine months ended September 30, 2016 was $0.5 million and $2.2 million, respectively, and $1.1 million and $2.1 million for the three and nine months ended September 30, 2015, respectively. The decrease in interest expense for the three months ended September 30, 2016 was due to the decreased debt outstanding during the period. The slight increase in interest expense for the nine months ended September 30, 2016, was due to the prepayment fee discussed above and the higher interest rate on the Equipment-based Facility compared to the interest rate on our prior credit facility.&lt;/div&gt;&lt;/div&gt;</us-gaap:DebtDisclosureTextBlock>
  <us-gaap:DebtInstrumentCarryingAmount contextRef="i_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352575" unitRef="iso4217-usd">9553000</us-gaap:DebtInstrumentCarryingAmount>
  <us-gaap:DebtInstrumentCarryingAmount contextRef="i_2015-12-31_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352576" unitRef="iso4217-usd">17957000</us-gaap:DebtInstrumentCarryingAmount>
  <us-gaap:DebtInstrumentCarryingAmount contextRef="i_2016-09-30_CreditFacilityAxis-TermLoanMember_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352597" unitRef="iso4217-usd">9553000</us-gaap:DebtInstrumentCarryingAmount>
  <us-gaap:DebtInstrumentCarryingAmount contextRef="i_2015-12-31_CreditFacilityAxis-TermLoanMember_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352599" unitRef="iso4217-usd">17957000</us-gaap:DebtInstrumentCarryingAmount>
  <us-gaap:DebtInstrumentFairValue contextRef="i_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352602" unitRef="iso4217-usd">9527000</us-gaap:DebtInstrumentFairValue>
  <us-gaap:DebtInstrumentFairValue contextRef="i_2015-12-31_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352604" unitRef="iso4217-usd">17957000</us-gaap:DebtInstrumentFairValue>
  <us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="i_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="4" id="c10352553" unitRef="xbrli-pure">0.12</us-gaap:DebtInstrumentInterestRateStatedPercentage>
  <us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="i_2016-09-30_DebtInstrumentAxis-NotesPayableForTransportationAndConstructionEquipmentMember_RangeAxis-MinimumMember" decimals="4" id="c10352561" unitRef="xbrli-pure">0.0312</us-gaap:DebtInstrumentInterestRateStatedPercentage>
  <us-gaap:DebtInstrumentInterestRateStatedPercentage contextRef="i_2016-09-30_DebtInstrumentAxis-NotesPayableForTransportationAndConstructionEquipmentMember_RangeAxis-MaximumMember" decimals="4" id="c10352562" unitRef="xbrli-pure">0.0713</us-gaap:DebtInstrumentInterestRateStatedPercentage>
  <us-gaap:DebtInstrumentTerm contextRef="d_2016-01-01_2016-09-30_DebtInstrumentAxis-NotesPayableForTransportationAndConstructionEquipmentMember_RangeAxis-MinimumMember" id="c10352559">P3Y</us-gaap:DebtInstrumentTerm>
  <us-gaap:DebtInstrumentTerm contextRef="d_2016-01-01_2016-09-30_DebtInstrumentAxis-NotesPayableForTransportationAndConstructionEquipmentMember_RangeAxis-MaximumMember" id="c10352560">P5Y</us-gaap:DebtInstrumentTerm>
  <us-gaap:DeferredFinanceCostsCurrentNet contextRef="i_2016-09-30" decimals="-3" id="c10352587" unitRef="iso4217-usd">356000</us-gaap:DeferredFinanceCostsCurrentNet>
  <us-gaap:DeferredFinanceCostsCurrentNet contextRef="i_2015-12-31" decimals="-3" id="c10352588" unitRef="iso4217-usd">336000</us-gaap:DeferredFinanceCostsCurrentNet>
  <us-gaap:DeferredFinanceCostsNet contextRef="i_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352577" unitRef="iso4217-usd">891000</us-gaap:DeferredFinanceCostsNet>
  <us-gaap:DeferredFinanceCostsNet contextRef="i_2015-12-31_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-3" id="c10352578" unitRef="iso4217-usd">1119000</us-gaap:DeferredFinanceCostsNet>
  <us-gaap:DepreciationDepletionAndAmortization contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352096" unitRef="iso4217-usd">12097000</us-gaap:DepreciationDepletionAndAmortization>
  <us-gaap:DepreciationDepletionAndAmortization contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352097" unitRef="iso4217-usd">12479000</us-gaap:DepreciationDepletionAndAmortization>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2016-07-01_2016-09-30" decimals="INF" id="c10352018" unitRef="iso4217-usd-per-xbrli-shares">0.10</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2015-07-01_2015-09-30" decimals="INF" id="c10352019" unitRef="iso4217-usd-per-xbrli-shares">0.01</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2016-01-01_2016-09-30" decimals="INF" id="c10352020" unitRef="iso4217-usd-per-xbrli-shares">-0.12</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareBasicAndDiluted contextRef="d_2015-01-01_2015-09-30" decimals="INF" id="c10352021" unitRef="iso4217-usd-per-xbrli-shares">-1</us-gaap:EarningsPerShareBasicAndDiluted>
  <us-gaap:EarningsPerShareTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344744">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;10.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Net Income (Loss) per Share Attributable to Sterling Common Stockholders&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive unvested stock using the treasury stock method. The following table reconciles the numerators and denominators of the basic and diluted per common share computations for net income (loss) attributable to Sterling common stockholders (amounts in thousands, except per share data):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Numerator:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: left; padding-left: 20pt; text-indent: -10pt"&gt;Net income (loss) attributable to Sterling common stockholders &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;2,415&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;256&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;(2,890&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;(19,278&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Denominator:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-left: 10pt"&gt;Weighted average common shares outstanding &amp;#x2014; basic &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,003&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,628&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;23,915&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,269&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt"&gt;Shares for dilutive unvested stock &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;362&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 20pt; text-indent: -10pt"&gt;Weighted average common shares outstanding and incremental shares assumed repurchased&amp;#x2014; diluted &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;25,365&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;19,628&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;23,915&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;19,269&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt"&gt;Basic and diluted income (loss) per share attributable to Sterling common stockholders &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;0.10&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;0.01&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;(0.12&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;(1.00&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In accordance with the treasury stock method, zero and approximately 0.3 million shares of unvested common stock were excluded from the calculation of the diluted weighted average common shares outstanding for the three and nine months ended September 30, 2016, as the Company incurred a loss during the nine month period and the impact of such shares would have been antidilutive. In accordance with the treasury stock method, 0.2 million and 0.4 million shares of unvested common stock were excluded from the diluted weighted average common shares outstanding for the three and nine months ended September 30, 2015, as the assumed proceeds related to these shares would purchase more shares than the unvested shares outstanding resulting in anti-dilution.&lt;/div&gt;&lt;/div&gt;</us-gaap:EarningsPerShareTextBlock>
  <us-gaap:EmployeeRelatedLiabilitiesCurrent contextRef="i_2016-09-30" decimals="-3" id="c10351913" unitRef="iso4217-usd">10412000</us-gaap:EmployeeRelatedLiabilitiesCurrent>
  <us-gaap:EmployeeRelatedLiabilitiesCurrent contextRef="i_2015-12-31" decimals="-3" id="c10351914" unitRef="iso4217-usd">5977000</us-gaap:EmployeeRelatedLiabilitiesCurrent>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized contextRef="i_2016-09-30" decimals="-5" id="c10352505" unitRef="iso4217-usd">2300000</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized>
  <us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1 contextRef="d_2016-01-01_2016-09-30" id="c10352506">P1Y182D</us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1>
  <us-gaap:EquityMethodInvestmentOwnershipPercentage contextRef="i_2016-09-30_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis-GraniteConstructionCorporationMember" decimals="2" id="c10352405" unitRef="xbrli-pure">0.49</us-gaap:EquityMethodInvestmentOwnershipPercentage>
  <us-gaap:EquityMethodInvestmentsDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344737">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0.25in"&gt;7.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Construction Joint Ventures&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company participates in various construction joint ventures. Generally, each construction joint venture is formed to construct a specific project and is jointly controlled by the joint venture partners. Refer to Note 6 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K for further information about our joint ventures. Condensed combined financial amounts of joint ventures in which the Company has a noncontrolling interest and the Company&amp;#x2019;s share of such amounts which are included in the Company&amp;#x2019;s condensed consolidated financial statements are shown below (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;September 30, &lt;br /&gt; 2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;December 31, &lt;br /&gt; 2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Total combined:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left; padding-left: 20pt"&gt;Current assets&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;26,893&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;17,312&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1.1pt; padding-left: 20pt"&gt;Less current liabilities&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right"&gt;(51,181&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right"&gt;(49,371&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.5pt; padding-left: 40pt"&gt;Net assets&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right"&gt;(24,288&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right"&gt;(32,059&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; padding-left: 20pt"&gt;Backlog&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;125,850&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;35,113&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Sterling&amp;#x2019;s noncontrolling interest in backlog&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;60,947&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;11,748&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Sterling&amp;#x2019;s receivables from and equity in construction joint ventures&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;9,469&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;12,930&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;/div&gt;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Total combined:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Revenues &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;15,520&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;9,458&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;44,074&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;50,450&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Income before tax &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,925&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;808&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,838&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,866&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Sterling&amp;#x2019;s portion of noncontrolling interest:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Revenues &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;6,103&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,437&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;17,567&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,986&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Income before tax &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;519&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;357&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,370&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,021&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Approximately $61 million of the Company&amp;#x2019;s backlog at September 30, 2016 was attributable to projects being performed by joint ventures. The majority of this amount is attributable to the Company&amp;#x2019;s joint venture with Granite Construction Corporation, where the Company has a 49% interest.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The caption &amp;#x201c;Receivables from and equity in construction joint ventures&amp;#x201d; includes undistributed earnings and receivables owed to the Company. Undistributed earnings are typically released to the joint venture partners after the customer accepts the project as complete and the warranty period, if any, has passed.&lt;/div&gt;&lt;/div&gt;</us-gaap:EquityMethodInvestmentsDisclosureTextBlock>
  <us-gaap:FairValueOfFinancialInstrumentsPolicy contextRef="d_2016-01-01_2016-09-30" id="c10353863">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Financial Instruments and Fair Value&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties. The Company&amp;#x2019;s financial instruments are cash and cash equivalents, restricted cash used as collateral for a letter of credit and restricted cash maintained in an escrow account, short-term contracts receivable, accounts payable, notes payable, a revolving loan (the &amp;#x201c;Revolving Loan&amp;#x201d;) with Nations Fund I, LLC and Nations Equipment Finance, LLC, as administrative agent and collateral agent for the lender (&amp;#x201c;Nations&amp;#x201d;) and a term loan (the &amp;#x201c;Term Loan&amp;#x201d;) with Nations (combined, the &amp;#x201c;Equipment-based Facility&amp;#x201d;).&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The recorded values of cash and cash equivalents, restricted cash, short-term contracts receivable and accounts payable approximate their fair values based on their liquidity and/or short-term nature.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Refer to Note 11 regarding the fair value of the Revolving Loan and the Term Loan and notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (refer to Note 12 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K).&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white"&gt;In order to assess the fair value of the Company&amp;#x2019;s financial instruments, the Company uses the fair value hierarchy established by GAAP which prioritizes the inputs used in valuation techniques into the following three levels:&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 1 Inputs &amp;#x2013; Based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 2 Inputs &amp;#x2013; Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 3 Inputs &amp;#x2013; Based on unobservable inputs reflecting the Company&amp;#x2019;s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;For each financial instrument, the Company uses the highest priority level input that is available in order to appropriately value that particular instrument. In certain instances, Level 1 inputs are not available and the Company must use Level 2 or Level 3 inputs. In these cases, the Company provides a description of the valuation techniques used and the inputs used in the fair value measurement.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:FairValueOfFinancialInstrumentsPolicy>
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  <us-gaap:MinorityInterestDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344734">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;6.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Subsidiaries and Joint Ventures with Noncontrolling Owners&amp;#x2019; Interests&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;&amp;nbsp;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The amended agreements, as described in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, resulted in an obligation to purchase Mr. Buenting&amp;#x2019;s and Myers&amp;#x2019; 50% members&amp;#x2019; interest that the Company is certain to incur, either because of Mr. Buenting&amp;#x2019;s or Mr. Myers&amp;#x2019; death; therefore, the Company has classified the noncontrolling interest as mandatorily redeemable and has recorded a liability in &amp;#x201c;Members&amp;#x2019; interest subject to mandatory redemption and undistributed earnings&amp;#x201d; on the condensed consolidated balance sheets. In addition, all undistributed earnings at the time of the noncontrolling owners&amp;#x2019; death or permanent disability are also mandatorily payable. The liability consists of the following (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2016&lt;/div&gt;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;December 31,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2015&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left; text-indent: 0in"&gt;Members&amp;#x2019; interest subject to mandatory redemption &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;40,000&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;40,000&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in"&gt;Net accumulated earnings &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;6,466&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,438&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt"&gt;Total liability &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;46,466&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;50,438&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Earnings for the three and nine months ended September 30, 2016 were $3.4 million and $7.3 million, respectively and $1.5 million and $0.8 million for the three and nine months ended September 30, 2015. These amounts were included in &amp;#x201c;Other operating income, net&amp;#x201d; on the Company&amp;#x2019;s condensed consolidated statements of operations.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Changes in Noncontrolling Interests&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The following table summarizes the changes in the noncontrolling owners&amp;#x2019; interests in subsidiaries and joint ventures (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left"&gt;Balance, beginning of period &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;(91&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;7,462&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Net income attributable to noncontrolling interest included in equity &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,252&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,948&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt"&gt;Distributions to noncontrolling interest owners&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(3,402&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt"&gt;Balance, end of period &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;1,161&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;7,008&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Net income attributable to noncontrolling interests for the nine months ended September 30, 2016, is primarily from the Company&amp;#x2019;s majority-owned construction joint venture. Due to the events described in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, the Company&amp;#x2019;s subsidiaries with noncontrolling interest earnings are less than the earnings in the prior year period.&lt;/div&gt;&lt;/div&gt;</us-gaap:MinorityInterestDisclosureTextBlock>
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  <us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352133" unitRef="iso4217-usd">-6172000</us-gaap:NetCashProvidedByUsedInInvestingActivitiesContinuingOperations>
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  <us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352124" unitRef="iso4217-usd">3492000</us-gaap:NetCashProvidedByUsedInOperatingActivitiesContinuingOperations>
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  <us-gaap:NetIncomeLoss contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352090" unitRef="iso4217-usd">-19278000</us-gaap:NetIncomeLoss>
  <us-gaap:NetIncomeLoss contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10352013" unitRef="iso4217-usd">2415000</us-gaap:NetIncomeLoss>
  <us-gaap:NetIncomeLoss contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10352014" unitRef="iso4217-usd">256000</us-gaap:NetIncomeLoss>
  <us-gaap:NetIncomeLossAttributableToNoncontrollingInterest contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352091" unitRef="iso4217-usd">1252000</us-gaap:NetIncomeLossAttributableToNoncontrollingInterest>
  <us-gaap:NetIncomeLossAttributableToNoncontrollingInterest contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352092" unitRef="iso4217-usd">2948000</us-gaap:NetIncomeLossAttributableToNoncontrollingInterest>
  <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic contextRef="d_2016-07-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352479" unitRef="iso4217-usd">1357000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
  <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic contextRef="d_2015-07-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352480" unitRef="iso4217-usd">1108000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
  <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic contextRef="d_2016-01-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352481" unitRef="iso4217-usd">2440000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
  <us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic contextRef="d_2015-01-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352482" unitRef="iso4217-usd">2941000</us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic>
  <us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock contextRef="d_2016-01-01_2016-09-30" id="c10353864">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Recent Accounting Pronouncements&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In August 2016, the Financial Accounting Standards Board (&amp;#x201c;FASB&amp;#x201d;) issued guidance in Accounting Standards Update (&amp;#x201c;ASU&amp;#x201d;) No. 2016-15 (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update addresses specific cash flow issues with the objective of reducing existing diversity in practice. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In June 2016, the FASB issued guidance in ASU No. 2016-13 Financial Instruments&amp;#x2014;Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Among other things, these amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts (forward-looking). Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. This new guidance is effective for public entities for annual reporting periods, beginning after December 15, 2019, including interim reporting periods therein. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In April and May 2016, the FASB issued additional revenue recognition guidance in ASU No. 2016-12, No. 2016-11 and 2016-10 (Topic 606). All three of these standards provide implementation guidance and clarifications of ASU 2014-09, &amp;#x201c;Revenue from Contracts with Customers.&amp;#x201d; ASU 2016-10 provides additional guidance on identifying performance obligations and licensing, ASU 2016-11 rescinds SEC guidance based on the previous revenue recognition standards and ASU 2016-12 relates to narrow-scope improvements and practical expedients. All of these amendments are effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In March 2016, the FASB issued its new stock compensation guidance in ASU No. 2016-09 (Topic 718). First, under the new guidance, companies will be required to recognize the income tax effects of share-based awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital (&amp;#x201c;APIC&amp;#x201d;) or APIC pools will be eliminated). In addition, the new guidance allows a withholding amount of awarded shares with a fair value up to the amount of tax owed using the maximum, instead of the minimum, statutory tax rate without triggering liability classification for the award. Lastly, the new guidance allows companies to elect whether to account for forfeitures of share-based payments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number of awards expected to be forfeited and adjusting the estimate when it is likely to change, as is currently required. The new standard is effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company has chosen to early adopt this guidance and chosen to account for forfeitures of share-based payments by recognizing forfeitures of awards as they occur. The result of adopting this guidance was immaterial to the Company&amp;#x2019;s condensed consolidated financial statements.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In February 2016, the FASB issued its new lease accounting guidance in ASU No. 2016-02, Leases (Topic 842).&amp;nbsp;Under the new guidance, lessees will be required to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee&amp;#x2019;s obligation to make lease payments arising from a lease, measured on a discounted basis and a right-of-use asset, which is an asset that represents the lessee&amp;#x2019;s right to use, or control the use of, a specified asset for the lease term. The new standard is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years.&amp;nbsp;The Company is currently evaluating the impact of the adoption of this ASU to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:NewAccountingPronouncementsPolicyPolicyTextBlock>
  <us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352167" unitRef="iso4217-usd">735000</us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1>
  <us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352168" unitRef="iso4217-usd">1161000</us-gaap:NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1>
  <us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable contextRef="d_2016-07-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352433" unitRef="iso4217-usd">519000</us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable>
  <us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable contextRef="d_2015-07-01_2015-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352434" unitRef="iso4217-usd">357000</us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable>
  <us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable contextRef="d_2016-01-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember_StatementEquityComponentsAxis-NoncontrollingInterestMember" decimals="-3" id="c10352435" unitRef="iso4217-usd">1370000</us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable>
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  <us-gaap:NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352012" unitRef="iso4217-usd">2948000</us-gaap:NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable>
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  <us-gaap:NotesPayable contextRef="i_2015-12-31_DebtInstrumentAxis-NotesPayableForTransportationAndConstructionEquipmentMember" decimals="-5" id="c10352558" unitRef="iso4217-usd">3300000</us-gaap:NotesPayable>
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  <us-gaap:NotesPayable contextRef="i_2015-12-31" decimals="-3" id="c10352582" unitRef="iso4217-usd">3342000</us-gaap:NotesPayable>
  <us-gaap:OperatingIncomeLoss contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10351981" unitRef="iso4217-usd">3672000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10351982" unitRef="iso4217-usd">2381000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10351983" unitRef="iso4217-usd">587000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10351984" unitRef="iso4217-usd">-14459000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2016-07-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352475" unitRef="iso4217-usd">2720000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2015-07-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352476" unitRef="iso4217-usd">2216000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2016-01-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352477" unitRef="iso4217-usd">4894000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OperatingIncomeLoss contextRef="d_2015-01-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352478" unitRef="iso4217-usd">5885000</us-gaap:OperatingIncomeLoss>
  <us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344728">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0.25in"&gt;1.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Business Summary and Significant Accounting Policies&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Business Summary&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Sterling Construction Company, Inc. (&amp;#x201c;Sterling&amp;#x201d; or &amp;#x201c;the Company&amp;#x201d;), a Delaware corporation, is a leading heavy civil construction company that specializes in the building and reconstruction of transportation and water infrastructure projects in Texas, Utah, Nevada, Colorado, Arizona, California, Hawaii and other states in which there are construction opportunities. Its transportation infrastructure projects include highways, roads, bridges, airfields, ports and light rail. Its water infrastructure projects include water, wastewater and storm drainage systems.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Presentation&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (&amp;#x201c;SEC&amp;#x201d;) and should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2015 (&amp;#x201c;2015 Form 10-K&amp;#x201d;). Certain information and note disclosures prepared in accordance with accounting principles generally accepted in the United States of America (&amp;#x201c;GAAP&amp;#x201d;) have been either condensed or omitted pursuant to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company&amp;#x2019;s financial position at September 30, 2016 and the results of operations and cash flows for the periods presented. The December 31, 2015 condensed consolidated balance sheet data herein was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-weight: bold;"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Significant Accounting Policies&lt;/div&gt;&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The Company&amp;#x2019;s significant accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K. These accounting policies include, but are not limited to, those related to:&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;  &lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top; text-align: justify"&gt; &lt;td style="width: 35pt; text-align: right"&gt;&amp;#x2022;&lt;/td&gt; &lt;td style="width: 5pt"&gt;&lt;/td&gt; &lt;td style="text-align: justify"&gt;revenue recognition&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top; text-align: justify"&gt; &lt;td style="width: 35pt; text-align: right"&gt;&amp;#x2022;&lt;/td&gt; &lt;td style="width: 5pt"&gt;&lt;/td&gt; &lt;td style="text-align: justify"&gt;contracts receivable, including retainage&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top; text-align: justify"&gt; &lt;td style="width: 35pt; text-align: right"&gt;&amp;#x2022;&lt;/td&gt; &lt;td style="width: 5pt"&gt;&lt;/td&gt; &lt;td style="text-align: justify"&gt;valuation of property and equipment, goodwill and other long-lived assets&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top; text-align: justify"&gt; &lt;td style="width: 35pt; text-align: right"&gt;&amp;#x2022;&lt;/td&gt; &lt;td style="width: 5pt"&gt;&lt;/td&gt; &lt;td style="text-align: justify"&gt;income taxes&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top; text-align: justify"&gt; &lt;td style="width: 35pt; text-align: right"&gt;&amp;#x2022;&lt;/td&gt; &lt;td style="width: 5pt"&gt;&lt;/td&gt; &lt;td style="text-align: justify"&gt;segment reporting&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;There have been no material changes to significant accounting policies since December 31, 2015.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Principles of Consolidation&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities. For investments in subsidiaries and construction joint ventures that are not wholly-owned, but where the Company exercises control, the equity held by the remaining owners and their portions of net income (loss) are reflected in the balance sheet line item &amp;#x201c;Noncontrolling interests&amp;#x201d; in &amp;#x201c;Equity&amp;#x201d; and the statement of operations line item &amp;#x201c;Noncontrolling owners&amp;#x2019; interests in earnings of subsidiaries and joint ventures,&amp;#x201d; respectively. All significant intercompany accounts and transactions have been eliminated in consolidation. For all years presented, the Company had no subsidiaries where its ownership interests were less than 50%.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Where the Company is a noncontrolling joint venture partner, and otherwise not required to consolidate the joint venture entity, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line item (&amp;#x201c;Receivables from and equity in construction joint ventures&amp;#x201d;) in the condensed consolidated balance sheets. This method is an acceptable modification of the equity method of accounting which is a common practice in the construction industry. Refer to Note 7 for further information regarding the Company&amp;#x2019;s construction joint ventures.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Under GAAP, the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity (&amp;#x201c;VIE&amp;#x201d;). This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring the Company to consolidate the entity in which it has a noncontrolling variable interest. Refer to Note 8 for further information regarding the Company&amp;#x2019;s consolidated VIE.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;  &lt;!-- Field: Page; Sequence: 8 --&gt;   &lt;!-- Field: /Page --&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Use of Estimates&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain of the Company&amp;#x2019;s accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets (including goodwill) and income taxes. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Reclassification&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Reclassifications have been made to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Revenue Recognition&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Our contracts generally take 12 to 36 months to complete. The Company generally provides a one to two-year warranty for workmanship under its contracts when completed. Warranty claims historically have been insignificant.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Changes in estimated revenues and gross margin resulted in a net charge of $0.6 million and a net charge of $1.1 million during the three months and nine months ended September 30, 2016, respectively, included in &amp;#x201c;operating income (loss)&amp;#x201d; on the condensed consolidated statements of operations&lt;div style="display: inline; color: red"&gt;. &lt;/div&gt;Changes in estimated revenues and gross margin resulted in a net charge of $1.1 million and $12.3 million during the three months and nine months ended September 30, 2015, respectively, included in &amp;#x201c;operating income (loss)&amp;#x201d; on the condensed consolidated statements of operations&lt;div style="display: inline; color: red"&gt;.&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;  &lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;Change orders are modifications of an original contract that effectively change the existing provisions of the contract without adding new provisions or terms. Change orders may include changes in specifications or designs, manner of performance, facilities, equipment, materials, sites and period of completion of the work. Either we or our customers may initiate change orders.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;  &lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;The Company considers unapproved change orders to be contract variations for which we have customer approval for a change of scope but a price change associated with the scope change has not yet been agreed upon. Costs associated with unapproved change orders are included in the estimated costs to complete the contracts and are treated as project costs as incurred. The Company recognizes revenue equal to costs incurred on unapproved change orders when realization of price approval is probable. Unapproved change orders involve the use of estimates, and it is reasonably possible that revisions to the estimated costs and recoverable amounts may be required in future reporting periods to reflect changes in estimates or final agreements with customers. Change orders that are unapproved as to both price and scope are evaluated as claims.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company considers claims to be amounts in excess of agreed contract prices that we seek to collect from our customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders that are either in dispute or are unapproved as to both scope and price, or other causes of unanticipated additional contract costs. Claims are included in the calculation of revenue when realization is probable and amounts can be reliably determined to the extent costs are incurred. To support these requirements, the existence of the following items must be satisfied: 1. The contract or other evidence provides a legal basis for the claim; or a legal opinion has been obtained, stating that under the circumstances there is a reasonable basis to support the claim; 2. Additional costs are caused by circumstances that were unforeseen at the contract date and are not the result of deficiencies in the contractor&amp;#x2019;s performance; 3. Costs associated with the claim are identifiable or otherwise determinable and are reasonable in view of the work performed; and 4. The evidence supporting the claim is objective and verifiable, not based on management&amp;#x2019;s feel for the situation or on unsupported representations. Revenues in excess of contract costs incurred on claims is recognized when an agreement is reached with customers as to the value of the claims, which in some instances may not occur until after completion of work under the contract. Costs associated with claims are included in the estimated costs to complete the contracts and are treated as project costs when incurred.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;    &lt;!-- Field: Page; Sequence: 9 --&gt;   &lt;!-- Field: /Page --&gt;   &lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;The Company has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its customers based on completing work associated with change orders with pending change order pricing or claims related to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If additional progress with an acceptable resolution is not reached, legal action will be taken.&lt;/div&gt; &lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;&amp;nbsp;&lt;/div&gt;  &lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;Based upon our review of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders, claims and our entitled unpaid project price, together with the views of the Company&amp;#x2019;s outside claim consultants, we concluded that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9 million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015, in &amp;#x201c;Costs and estimated earnings in excess of billings on uncompleted contracts&amp;#x201d; on our condensed consolidated balance sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ materially from estimated and recorded amounts.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Financial Instruments and Fair Value&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties. The Company&amp;#x2019;s financial instruments are cash and cash equivalents, restricted cash used as collateral for a letter of credit and restricted cash maintained in an escrow account, short-term contracts receivable, accounts payable, notes payable, a revolving loan (the &amp;#x201c;Revolving Loan&amp;#x201d;) with Nations Fund I, LLC and Nations Equipment Finance, LLC, as administrative agent and collateral agent for the lender (&amp;#x201c;Nations&amp;#x201d;) and a term loan (the &amp;#x201c;Term Loan&amp;#x201d;) with Nations (combined, the &amp;#x201c;Equipment-based Facility&amp;#x201d;).&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;The recorded values of cash and cash equivalents, restricted cash, short-term contracts receivable and accounts payable approximate their fair values based on their liquidity and/or short-term nature.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Refer to Note 11 regarding the fair value of the Revolving Loan and the Term Loan and notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (refer to Note 12 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K).&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white"&gt;In order to assess the fair value of the Company&amp;#x2019;s financial instruments, the Company uses the fair value hierarchy established by GAAP which prioritizes the inputs used in valuation techniques into the following three levels:&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 1 Inputs &amp;#x2013; Based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 2 Inputs &amp;#x2013; Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;Level 3 Inputs &amp;#x2013; Based on unobservable inputs reflecting the Company&amp;#x2019;s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;For each financial instrument, the Company uses the highest priority level input that is available in order to appropriately value that particular instrument. In certain instances, Level 1 inputs are not available and the Company must use Level 2 or Level 3 inputs. In these cases, the Company provides a description of the valuation techniques used and the inputs used in the fair value measurement.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Recent Accounting Pronouncements&lt;/div&gt;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In August 2016, the Financial Accounting Standards Board (&amp;#x201c;FASB&amp;#x201d;) issued guidance in Accounting Standards Update (&amp;#x201c;ASU&amp;#x201d;) No. 2016-15 (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update addresses specific cash flow issues with the objective of reducing existing diversity in practice. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;   &lt;!-- Field: Page; Sequence: 10 --&gt;   &lt;!-- Field: /Page --&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In June 2016, the FASB issued guidance in ASU No. 2016-13 Financial Instruments&amp;#x2014;Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Among other things, these amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts (forward-looking). Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. This new guidance is effective for public entities for annual reporting periods, beginning after December 15, 2019, including interim reporting periods therein. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In April and May 2016, the FASB issued additional revenue recognition guidance in ASU No. 2016-12, No. 2016-11 and 2016-10 (Topic 606). All three of these standards provide implementation guidance and clarifications of ASU 2014-09, &amp;#x201c;Revenue from Contracts with Customers.&amp;#x201d; ASU 2016-10 provides additional guidance on identifying performance obligations and licensing, ASU 2016-11 rescinds SEC guidance based on the previous revenue recognition standards and ASU 2016-12 relates to narrow-scope improvements and practical expedients. All of these amendments are effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein. The Company is currently evaluating the impact of the adoption of this guidance to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In March 2016, the FASB issued its new stock compensation guidance in ASU No. 2016-09 (Topic 718). First, under the new guidance, companies will be required to recognize the income tax effects of share-based awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital (&amp;#x201c;APIC&amp;#x201d;) or APIC pools will be eliminated). In addition, the new guidance allows a withholding amount of awarded shares with a fair value up to the amount of tax owed using the maximum, instead of the minimum, statutory tax rate without triggering liability classification for the award. Lastly, the new guidance allows companies to elect whether to account for forfeitures of share-based payments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number of awards expected to be forfeited and adjusting the estimate when it is likely to change, as is currently required. The new standard is effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company has chosen to early adopt this guidance and chosen to account for forfeitures of share-based payments by recognizing forfeitures of awards as they occur. The result of adopting this guidance was immaterial to the Company&amp;#x2019;s condensed consolidated financial statements.&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;In February 2016, the FASB issued its new lease accounting guidance in ASU No. 2016-02, Leases (Topic 842).&amp;nbsp;Under the new guidance, lessees will be required to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee&amp;#x2019;s obligation to make lease payments arising from a lease, measured on a discounted basis and a right-of-use asset, which is an asset that represents the lessee&amp;#x2019;s right to use, or control the use of, a specified asset for the lease term. The new standard is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years.&amp;nbsp;The Company is currently evaluating the impact of the adoption of this ASU to the Company&amp;#x2019;s consolidated financial statements and related disclosures.&lt;/div&gt;&lt;/div&gt;</us-gaap:OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock>
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  <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352126" unitRef="iso4217-usd">8852000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
  <us-gaap:PaymentsToAcquirePropertyPlantAndEquipment contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352127" unitRef="iso4217-usd">7086000</us-gaap:PaymentsToAcquirePropertyPlantAndEquipment>
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  <us-gaap:PaymentsToMinorityShareholders contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352150" unitRef="iso4217-usd">3402000</us-gaap:PaymentsToMinorityShareholders>
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  <us-gaap:PreferredStockSharesAuthorized contextRef="i_2016-09-30" decimals="INF" id="c10351937" unitRef="xbrli-shares">1000000</us-gaap:PreferredStockSharesAuthorized>
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  <us-gaap:PreferredStockValue contextRef="i_2015-12-31" id="c10351934" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:PriorPeriodReclassificationAdjustmentDescription contextRef="d_2016-01-01_2016-09-30" id="c10353861">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Reclassification&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"&gt;Reclassifications have been made to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:PriorPeriodReclassificationAdjustmentDescription>
  <us-gaap:ProceedsFromIssuanceOfCommonStock contextRef="d_2016-05-09_2016-05-09_SubsidiarySaleOfStockAxis-DADavidsonAndCoMember" decimals="-5" id="c10352489" unitRef="iso4217-usd">19100000</us-gaap:ProceedsFromIssuanceOfCommonStock>
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  <us-gaap:ProceedsFromIssuanceOfLongTermDebt contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352140" unitRef="iso4217-usd">18980000</us-gaap:ProceedsFromIssuanceOfLongTermDebt>
  <us-gaap:ProceedsFromLinesOfCredit contextRef="d_2016-01-01_2016-09-30" id="c10352135" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:ProceedsFromLinesOfCredit contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352136" unitRef="iso4217-usd">112848000</us-gaap:ProceedsFromLinesOfCredit>
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  <us-gaap:ProceedsFromPaymentsForOtherFinancingActivities contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352152" unitRef="iso4217-usd">-2751000</us-gaap:ProceedsFromPaymentsForOtherFinancingActivities>
  <us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352128" unitRef="iso4217-usd">2187000</us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment>
  <us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352129" unitRef="iso4217-usd">5859000</us-gaap:ProceedsFromSaleOfPropertyPlantAndEquipment>
  <us-gaap:ProceedsFromSecuredLinesOfCredit contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352143" unitRef="iso4217-usd">19000000</us-gaap:ProceedsFromSecuredLinesOfCredit>
  <us-gaap:ProceedsFromSecuredLinesOfCredit contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352144" unitRef="iso4217-usd">13100000</us-gaap:ProceedsFromSecuredLinesOfCredit>
  <us-gaap:ProfitLoss contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10352005" unitRef="iso4217-usd">3155000</us-gaap:ProfitLoss>
  <us-gaap:ProfitLoss contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10352006" unitRef="iso4217-usd">1365000</us-gaap:ProfitLoss>
  <us-gaap:ProfitLoss contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352007" unitRef="iso4217-usd">-1638000</us-gaap:ProfitLoss>
  <us-gaap:ProfitLoss contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352008" unitRef="iso4217-usd">-16330000</us-gaap:ProfitLoss>
  <us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock contextRef="d_2016-01-01_2016-09-30" id="s344730">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;"&gt;  &lt;tr style="vertical-align: top"&gt; &lt;td style="width: 0"&gt;&lt;/td&gt; &lt;td style="width: 0.25in"&gt;3.&lt;/td&gt; &lt;td style="text-align: justify; padding-right: 0.05in"&gt;Property and Equipment&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 1in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in"&gt;Property and equipment are summarized as follows (amounts in thousands):&lt;/div&gt; &lt;div style=" font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in"&gt;&amp;nbsp;&lt;/div&gt; &lt;div&gt; &lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;"&gt;  &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, &lt;br /&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid; text-align: center"&gt;December 31, &lt;br /&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Construction equipment &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;121,371&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;114,724&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Transportation equipment &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;18,924&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;18,056&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Buildings &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;12,771&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,860&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Office equipment &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,041&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,810&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Leasehold improvement &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;915&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;894&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Construction in progress &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;96&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,986&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Land &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,509&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;4,257&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Water rights &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;200&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;200&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;160,827&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;153,787&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less accumulated depreciation &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(90,464&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(80,312&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 9pt"&gt;Total property and equipment, net &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;70,363&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;73,475&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt;  &lt;/table&gt; &lt;/div&gt;&lt;/div&gt;</us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-ConstructionEquipmentMember" decimals="-3" id="c10352310" unitRef="iso4217-usd">121371000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-ConstructionEquipmentMember" decimals="-3" id="c10352311" unitRef="iso4217-usd">114724000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-TransportationEquipmentMember" decimals="-3" id="c10352312" unitRef="iso4217-usd">18924000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-TransportationEquipmentMember" decimals="-3" id="c10352313" unitRef="iso4217-usd">18056000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-BuildingMember" decimals="-3" id="c10352314" unitRef="iso4217-usd">12771000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-BuildingMember" decimals="-3" id="c10352315" unitRef="iso4217-usd">10860000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-OfficeEquipmentMember" decimals="-3" id="c10352316" unitRef="iso4217-usd">3041000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-OfficeEquipmentMember" decimals="-3" id="c10352317" unitRef="iso4217-usd">2810000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-LeaseholdImprovementsMember" decimals="-3" id="c10352318" unitRef="iso4217-usd">915000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-LeaseholdImprovementsMember" decimals="-3" id="c10352319" unitRef="iso4217-usd">894000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-ConstructionInProgressMember" decimals="-3" id="c10352320" unitRef="iso4217-usd">96000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-ConstructionInProgressMember" decimals="-3" id="c10352321" unitRef="iso4217-usd">1986000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-LandMember" decimals="-3" id="c10352322" unitRef="iso4217-usd">3509000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-LandMember" decimals="-3" id="c10352323" unitRef="iso4217-usd">4257000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30_PropertyPlantAndEquipmentByTypeAxis-WaterRightsMember" decimals="-3" id="c10352324" unitRef="iso4217-usd">200000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31_PropertyPlantAndEquipmentByTypeAxis-WaterRightsMember" decimals="-3" id="c10352325" unitRef="iso4217-usd">200000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2016-09-30" decimals="-3" id="c10352326" unitRef="iso4217-usd">160827000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentGross contextRef="i_2015-12-31" decimals="-3" id="c10352327" unitRef="iso4217-usd">153787000</us-gaap:PropertyPlantAndEquipmentGross>
  <us-gaap:PropertyPlantAndEquipmentNet contextRef="i_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352452" unitRef="iso4217-usd">10279000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:PropertyPlantAndEquipmentNet contextRef="i_2015-12-31_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352453" unitRef="iso4217-usd">10080000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:PropertyPlantAndEquipmentNet contextRef="i_2016-09-30" decimals="-3" id="c10352330" unitRef="iso4217-usd">70363000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:PropertyPlantAndEquipmentNet contextRef="i_2015-12-31" decimals="-3" id="c10352331" unitRef="iso4217-usd">73475000</us-gaap:PropertyPlantAndEquipmentNet>
  <us-gaap:PropertyPlantAndEquipmentTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-16">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, &lt;br /&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid; text-align: center"&gt;December 31, &lt;br /&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Construction equipment &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;121,371&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;114,724&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Transportation equipment &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;18,924&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;18,056&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Buildings &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;12,771&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,860&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Office equipment &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,041&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,810&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Leasehold improvement &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;915&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;894&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Construction in progress &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;96&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,986&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Land &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,509&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;4,257&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Water rights &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;200&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;200&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;160,827&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;153,787&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less accumulated depreciation &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(90,464&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(80,312&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 9pt"&gt;Total property and equipment, net &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;70,363&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;73,475&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:PropertyPlantAndEquipmentTextBlock>
  <us-gaap:ReceivablesLongTermContractsOrPrograms contextRef="i_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352446" unitRef="iso4217-usd">25107000</us-gaap:ReceivablesLongTermContractsOrPrograms>
  <us-gaap:ReceivablesLongTermContractsOrPrograms contextRef="i_2015-12-31_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352447" unitRef="iso4217-usd">19941000</us-gaap:ReceivablesLongTermContractsOrPrograms>
  <us-gaap:ReceivablesLongTermContractsOrPrograms contextRef="i_2016-09-30" decimals="-3" id="c10351883" unitRef="iso4217-usd">105415000</us-gaap:ReceivablesLongTermContractsOrPrograms>
  <us-gaap:ReceivablesLongTermContractsOrPrograms contextRef="i_2015-12-31" decimals="-3" id="c10351884" unitRef="iso4217-usd">82112000</us-gaap:ReceivablesLongTermContractsOrPrograms>
  <us-gaap:RepaymentsOfLinesOfCredit contextRef="d_2016-01-01_2016-09-30" id="c10352137" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:RepaymentsOfLinesOfCredit contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352138" unitRef="iso4217-usd">147450000</us-gaap:RepaymentsOfLinesOfCredit>
  <us-gaap:RepaymentsOfLongTermDebt contextRef="d_2016-07-01_2016-09-30_DebtInstrumentAxis-EquipmentBasedFacilityMember" decimals="-5" id="c10352551" unitRef="iso4217-usd">5000000</us-gaap:RepaymentsOfLongTermDebt>
  <us-gaap:RepaymentsOfLongTermDebt contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352141" unitRef="iso4217-usd">9546000</us-gaap:RepaymentsOfLongTermDebt>
  <us-gaap:RepaymentsOfLongTermDebt contextRef="d_2015-01-01_2015-09-30" id="c10352142" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:RepaymentsOfSecuredDebt contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352145" unitRef="iso4217-usd">19000000</us-gaap:RepaymentsOfSecuredDebt>
  <us-gaap:RepaymentsOfSecuredDebt contextRef="d_2015-01-01_2015-09-30" id="c10352146" unitRef="iso4217-usd" xs:nil="true"/>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-MajorityOwnedJointVenturesMember" decimals="-5" id="c10352293" unitRef="iso4217-usd">14100000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2015-12-31_VariableInterestEntitiesByClassificationOfEntityAxis-MajorityOwnedJointVenturesMember" decimals="-5" id="c10352294" unitRef="iso4217-usd">14100000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2016-09-30_BalanceSheetLocationAxis-OtherAssetsMember" decimals="-5" id="c10352295" unitRef="iso4217-usd">3000000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2015-12-31_BalanceSheetLocationAxis-OtherAssetsMember" decimals="-5" id="c10352296" unitRef="iso4217-usd">3000000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2016-09-30_BalanceSheetLocationAxis-OtherCurrentAssetsMember" decimals="-5" id="c10352299" unitRef="iso4217-usd">2000000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RestrictedCashAndCashEquivalents contextRef="i_2015-12-31_BalanceSheetLocationAxis-OtherCurrentAssetsMember" decimals="-5" id="c10352300" unitRef="iso4217-usd">2000000</us-gaap:RestrictedCashAndCashEquivalents>
  <us-gaap:RetainedEarningsAccumulatedDeficit contextRef="i_2016-09-30" decimals="-3" id="c10351951" unitRef="iso4217-usd">-95390000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:RetainedEarningsAccumulatedDeficit contextRef="i_2015-12-31" decimals="-3" id="c10351952" unitRef="iso4217-usd">-92500000</us-gaap:RetainedEarningsAccumulatedDeficit>
  <us-gaap:RevenueRecognitionPercentageOfCompletionMethod contextRef="d_2016-01-01_2016-09-30" id="c10353862">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;div style="display: inline; font-style: italic;"&gt;Revenue Recognition&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Our contracts generally take 12 to 36 months to complete. The Company generally provides a one to two-year warranty for workmanship under its contracts when completed. Warranty claims historically have been insignificant.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;Changes in estimated revenues and gross margin resulted in a net charge of $0.6 million and a net charge of $1.1 million during the three months and nine months ended September 30, 2016, respectively, included in &amp;#x201c;operating income (loss)&amp;#x201d; on the condensed consolidated statements of operations&lt;div style="display: inline; color: red"&gt;. &lt;/div&gt;Changes in estimated revenues and gross margin resulted in a net charge of $1.1 million and $12.3 million during the three months and nine months ended September 30, 2015, respectively, included in &amp;#x201c;operating income (loss)&amp;#x201d; on the condensed consolidated statements of operations&lt;div style="display: inline; color: red"&gt;.&lt;/div&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;Change orders are modifications of an original contract that effectively change the existing provisions of the contract without adding new provisions or terms. Change orders may include changes in specifications or designs, manner of performance, facilities, equipment, materials, sites and period of completion of the work. Either we or our customers may initiate change orders.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;The Company considers unapproved change orders to be contract variations for which we have customer approval for a change of scope but a price change associated with the scope change has not yet been agreed upon. Costs associated with unapproved change orders are included in the estimated costs to complete the contracts and are treated as project costs as incurred. The Company recognizes revenue equal to costs incurred on unapproved change orders when realization of price approval is probable. Unapproved change orders involve the use of estimates, and it is reasonably possible that revisions to the estimated costs and recoverable amounts may be required in future reporting periods to reflect changes in estimates or final agreements with customers. Change orders that are unapproved as to both price and scope are evaluated as claims.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;The Company considers claims to be amounts in excess of agreed contract prices that we seek to collect from our customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders that are either in dispute or are unapproved as to both scope and price, or other causes of unanticipated additional contract costs. Claims are included in the calculation of revenue when realization is probable and amounts can be reliably determined to the extent costs are incurred. To support these requirements, the existence of the following items must be satisfied: 1. The contract or other evidence provides a legal basis for the claim; or a legal opinion has been obtained, stating that under the circumstances there is a reasonable basis to support the claim; 2. Additional costs are caused by circumstances that were unforeseen at the contract date and are not the result of deficiencies in the contractor&amp;#x2019;s performance; 3. Costs associated with the claim are identifiable or otherwise determinable and are reasonable in view of the work performed; and 4. The evidence supporting the claim is objective and verifiable, not based on management&amp;#x2019;s feel for the situation or on unsupported representations. Revenues in excess of contract costs incurred on claims is recognized when an agreement is reached with customers as to the value of the claims, which in some instances may not occur until after completion of work under the contract. Costs associated with claims are included in the estimated costs to complete the contracts and are treated as project costs when incurred.&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"&gt;&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;The Company has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its customers based on completing work associated with change orders with pending change order pricing or claims related to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If additional progress with an acceptable resolution is not reached, legal action will be taken.&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;&amp;nbsp;&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;&lt;/div&gt;&lt;div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"&gt;Based upon our review of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders, claims and our entitled unpaid project price, together with the views of the Company&amp;#x2019;s outside claim consultants, we concluded that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9 million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015, in &amp;#x201c;Costs and estimated earnings in excess of billings on uncompleted contracts&amp;#x201d; on our condensed consolidated balance sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ materially from estimated and recorded amounts.&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</us-gaap:RevenueRecognitionPercentageOfCompletionMethod>
  <us-gaap:Revenues contextRef="d_2016-07-01_2016-09-30" decimals="-3" id="c10351961" unitRef="iso4217-usd">205629000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-07-01_2015-09-30" decimals="-3" id="c10351962" unitRef="iso4217-usd">176000000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10351963" unitRef="iso4217-usd">521778000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10351964" unitRef="iso4217-usd">471107000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-07-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352420" unitRef="iso4217-usd">15520000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-07-01_2015-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352421" unitRef="iso4217-usd">9458000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-01-01_2016-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352422" unitRef="iso4217-usd">44074000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-01-01_2015-09-30_LegalEntityAxis-CorporateJointVentureMember" decimals="-3" id="c10352423" unitRef="iso4217-usd">50450000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-07-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352471" unitRef="iso4217-usd">50739000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-07-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352472" unitRef="iso4217-usd">43444000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2016-01-01_2016-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352473" unitRef="iso4217-usd">121649000</us-gaap:Revenues>
  <us-gaap:Revenues contextRef="d_2015-01-01_2015-09-30_VariableInterestEntitiesByClassificationOfEntityAxis-VariableInterestEntityPrimaryBeneficiaryMember" decimals="-3" id="c10352474" unitRef="iso4217-usd">134035000</us-gaap:Revenues>
  <us-gaap:ScheduleOfCondensedBalanceSheetTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-19">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;September 30, &lt;br /&gt; 2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;December 31, &lt;br /&gt; 2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Total combined:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: left; padding-left: 20pt"&gt;Current assets&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;26,893&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;17,312&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1.1pt; padding-left: 20pt"&gt;Less current liabilities&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right"&gt;(51,181&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right"&gt;(49,371&lt;/td&gt; &lt;td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.5pt; padding-left: 40pt"&gt;Net assets&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right"&gt;(24,288&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right"&gt;(32,059&lt;/td&gt; &lt;td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; padding-left: 20pt"&gt;Backlog&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;125,850&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;35,113&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Sterling&amp;#x2019;s noncontrolling interest in backlog&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;60,947&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;11,748&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Sterling&amp;#x2019;s receivables from and equity in construction joint ventures&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;9,469&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;12,930&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCondensedBalanceSheetTableTextBlock>
  <us-gaap:ScheduleOfCondensedIncomeStatementTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-20">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td nowrap="nowrap" style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Total combined:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Revenues &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;15,520&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;9,458&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;44,074&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;50,450&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Income before tax &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,925&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;808&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,838&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,866&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Sterling&amp;#x2019;s portion of noncontrolling interest:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Revenues &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;6,103&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;3,437&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;17,567&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,986&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 22.5pt"&gt;Income before tax &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;519&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;357&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,370&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,021&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCondensedIncomeStatementTableTextBlock>
  <us-gaap:ScheduleOfCondensedIncomeStatementTableTextBlock contextRef="d_2016-01-01_2016-09-30_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-MyersAndSonsConstructionMember" id="c-22">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;Nine Months Ended&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 40%; font-size: 10pt; text-align: left; text-indent: 0in"&gt;Revenues &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;50,739&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;43,444&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;121,649&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;134,035&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Operating income &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,720&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,216&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;4,894&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,885&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt; text-indent: -10pt"&gt;Net income attributable to Sterling common stockholders&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,357&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;1,108&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,440&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;2,941&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfCondensedIncomeStatementTableTextBlock>
  <us-gaap:ScheduleOfDebtInstrumentsTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-24">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;September 30,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2016&lt;/div&gt;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;&lt;div style=" margin-top: 0; margin-bottom: 0"&gt;December 31,&lt;/div&gt; &lt;div style=" margin-top: 0; margin-bottom: 0"&gt;2015&lt;/div&gt;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Equipment-based Facility &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less deferred loan costs &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(891&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(1,119&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in; padding-left: 10pt"&gt;Equipment-based Facility, net &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;8,662&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;16,838&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt"&gt;Notes payable for transportation and construction equipment and other &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;2,943&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;3,342&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;11,605&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;20,180&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; text-indent: 0in"&gt;Current maturities of long-term debt &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,009&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;5,192&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Less current deferred loan costs &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(356&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(336&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in; padding-left: 10pt"&gt;Less current maturities of long-term debt, net &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(4,653&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;(4,856&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in"&gt;Total long-term debt &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;6,952&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;15,324&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfDebtInstrumentsTextBlock>
  <us-gaap:ScheduleOfDebtTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-25">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, 2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;December 31, 2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Carrying Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Fair Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Carrying Value&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Fair Value&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; text-indent: 0in"&gt;Revolving Loan &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in"&gt;Term Loan &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;9,527&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in"&gt;Total Equipment-based Facility debt &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;9,553&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;9,527&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;17,957&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfDebtTableTextBlock>
  <us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-23">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Three Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;Nine Months Ended &lt;br /&gt;September 30,&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Numerator:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 48%; font-size: 10pt; text-align: left; padding-left: 20pt; text-indent: -10pt"&gt;Net income (loss) attributable to Sterling common stockholders &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;2,415&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;256&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;(2,890&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 10%; font-size: 10pt; text-align: right"&gt;(19,278&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;Denominator:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-left: 10pt"&gt;Weighted average common shares outstanding &amp;#x2014; basic &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,003&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,628&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;23,915&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,269&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt"&gt;Shares for dilutive unvested stock &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;362&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;-&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 20pt; text-indent: -10pt"&gt;Weighted average common shares outstanding and incremental shares assumed repurchased&amp;#x2014; diluted &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;25,365&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;19,628&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;23,915&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;19,269&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt"&gt;Basic and diluted income (loss) per share attributable to Sterling common stockholders &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;0.10&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;0.01&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;(0.12&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;(1.00&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;)&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock>
  <us-gaap:ScheduleOfVariableInterestEntitiesTextBlock contextRef="d_2016-01-01_2016-09-30" id="c-21">&lt;div style="display: inline; font-family: times new roman; font-size: 10pt"&gt;&lt;table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"&gt; &lt;tr style="vertical-align: bottom"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;September 30, &lt;br /&gt;2016&lt;/td&gt; &lt;td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"&gt;December 31, &lt;br /&gt;2015&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Assets:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Current assets: &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Cash and cash equivalents &lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;2,074&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="width: 12%; font-size: 10pt; text-align: right"&gt;3,226&lt;/td&gt; &lt;td style="width: 1%; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Contracts receivable, including retainage &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,107&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;19,941&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other current assets &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,052&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;15,887&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 20pt"&gt;Total current assets &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;37,233&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;39,054&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Property and equipment, net &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,279&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;10,080&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt"&gt;Goodwill &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;1,501&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;1,501&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt"&gt;Total assets &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;49,013&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;50,635&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Liabilities:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Current liabilities: &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 10pt"&gt;Accounts payable &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;25,907&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;20,596&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other current liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;11,541&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;10,986&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-left: 20pt"&gt;Total current liabilities &lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;37,448&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;31,582&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify"&gt;Long-term liabilities:&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: right"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: White"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt"&gt;Other long-term liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;425&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 1pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right"&gt;3,370&lt;/td&gt; &lt;td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;tr style="vertical-align: bottom; background-color: rgb(204,238,255)"&gt; &lt;td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt"&gt;Total liabilities &lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;37,873&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="font-size: 10pt; padding-bottom: 2.25pt"&gt;&amp;nbsp;&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;$&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right"&gt;34,952&lt;/td&gt; &lt;td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left"&gt;&amp;nbsp;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;&lt;/div&gt;</us-gaap:ScheduleOfVariableInterestEntitiesTextBlock>
  <us-gaap:ShareBasedCompensation contextRef="d_2016-01-01_2016-09-30" decimals="-3" id="c10352100" unitRef="iso4217-usd">1211000</us-gaap:ShareBasedCompensation>
  <us-gaap:ShareBasedCompensation contextRef="d_2015-01-01_2015-09-30" decimals="-3" id="c10352101" unitRef="iso4217-usd">1319000</us-gaap:ShareBasedCompensation>
  <us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod contextRef="d_2016-07-01_2016-09-30_AwardTypeAxis-RestrictedStockMember" decimals="INF" id="c10352495" unitRef="xbrli-shares">0</us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod>
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<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>8
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<DOCUMENT>
<TYPE>EX-101.DEF
<SEQUENCE>9
<FILENAME>strl-20160930_def.xml
<DESCRIPTION>XBRL DEFINITION FILE
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_DocumentType" xlink:to="dei_DocumentType-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ReceivablesFromAndEquityInConstructionJointVenture" xlink:label="strl_ReceivablesFromAndEquityInConstructionJointVenture" xlink:type="locator"/>
    <link:label xlink:label="strl_ReceivablesFromAndEquityInConstructionJointVenture-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sterling&#8217;s receivables from and equity in construction joint ventures</link:label>
    <link:label xlink:label="strl_ReceivablesFromAndEquityInConstructionJointVenture-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amounts due from minority-owned entities in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle). Also, includes the entity's equity in minority-owned joint ventures.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ReceivablesFromAndEquityInConstructionJointVenture" xlink:to="strl_ReceivablesFromAndEquityInConstructionJointVenture-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsNet" xlink:label="us-gaap_AssetsNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AssetsNet</link:label>
    <link:label xlink:label="us-gaap_AssetsNet-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsNet" xlink:to="us-gaap_AssetsNet-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock" xlink:label="strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Changes in Noncontrolling Interests and Joint Ventures [Table Text Block]</link:label>
    <link:label xlink:label="strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of changes in noncontrolling interests and joint ventures.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock" xlink:to="strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock" xlink:label="strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Components of Agreement Obligation [Table Text Block]</link:label>
    <link:label xlink:label="strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Tabular disclosure of the components of an agreement obligation.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock" xlink:to="strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net loss</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="us-gaap_SharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharesOutstanding</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance (in shares)</link:label>
    <link:label xlink:label="us-gaap_SharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesOutstanding" xlink:to="us-gaap_SharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsDisclosureTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsDisclosureTextBlock" xlink:to="us-gaap_CashAndCashEquivalentsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Change in the effective portion of unrealized loss in fair market value of derivatives</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestIncomeOther" xlink:label="us-gaap_InterestIncomeOther" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestIncomeOther-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest income</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestIncomeOther" xlink:to="us-gaap_InterestIncomeOther-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="us-gaap_StockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockholdersEquity</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total Sterling common stockholders&#8217; equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="dei_EntityWellKnownSeasonedIssuer" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityWellKnownSeasonedIssuer-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Well-known Seasoned Issuer</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityWellKnownSeasonedIssuer" xlink:to="dei_EntityWellKnownSeasonedIssuer-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from financing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConstructionInProgressMember" xlink:label="us-gaap_ConstructionInProgressMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConstructionInProgressMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction in Progress [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionInProgressMember" xlink:to="us-gaap_ConstructionInProgressMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestExpenseDebt" xlink:label="us-gaap_InterestExpenseDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestExpenseDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_InterestExpenseDebt</link:label>
    <link:label xlink:label="us-gaap_InterestExpenseDebt-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Expense, Debt</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseDebt" xlink:to="us-gaap_InterestExpenseDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ComprehensiveIncomeNetOfTax</link:label>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Comprehensive income (loss)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementGeographicalAxis" xlink:label="us-gaap_StatementGeographicalAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementGeographicalAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementGeographicalAxis" xlink:to="us-gaap_StatementGeographicalAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInRestrictedCash" xlink:label="us-gaap_IncreaseDecreaseInRestrictedCash" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInRestrictedCash-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInRestrictedCash</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInRestrictedCash-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Restricted cash</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInRestrictedCash" xlink:to="us-gaap_IncreaseDecreaseInRestrictedCash-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SegmentGeographicalDomain" xlink:label="us-gaap_SegmentGeographicalDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SegmentGeographicalDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Geographical [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentGeographicalDomain" xlink:to="us-gaap_SegmentGeographicalDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementOfFinancialPositionAbstract" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfFinancialPositionAbstract" xlink:to="us-gaap_StatementOfFinancialPositionAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RevenueRecognitionPercentageOfCompletionMethod" xlink:label="us-gaap_RevenueRecognitionPercentageOfCompletionMethod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevenueRecognitionPercentageOfCompletionMethod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revenue Recognition, Percentage-of-Completion Method [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionPercentageOfCompletionMethod" xlink:to="us-gaap_RevenueRecognitionPercentageOfCompletionMethod-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other comprehensive income (loss), net of tax:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxAbstract" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SubsidiariesMember" xlink:label="us-gaap_SubsidiariesMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsidiariesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiaries [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiariesMember" xlink:to="us-gaap_SubsidiariesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_EquipmentBasedFacilityMember" xlink:label="strl_EquipmentBasedFacilityMember" xlink:type="locator"/>
    <link:label xlink:label="strl_EquipmentBasedFacilityMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equipment-based Facility [Member]</link:label>
    <link:label xlink:label="strl_EquipmentBasedFacilityMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the Equipment-based Facility.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_EquipmentBasedFacilityMember" xlink:to="strl_EquipmentBasedFacilityMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral" xlink:label="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral" xlink:type="locator"/>
    <link:label xlink:label="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral</link:label>
    <link:label xlink:label="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Percentage of Appraised Value of Collateral</link:label>
    <link:label xlink:label="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents percentage of the appraised value of collateral pledged for loans.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral" xlink:to="strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LineOfCredit" xlink:label="us-gaap_LineOfCredit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LineOfCredit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equipment-based Facility, net</link:label>
    <link:label xlink:label="us-gaap_LineOfCredit-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carrying Value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCredit" xlink:to="us-gaap_LineOfCredit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongTermDebt" xlink:label="us-gaap_LongTermDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LongTermDebt</link:label>
    <link:label xlink:label="us-gaap_LongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebt" xlink:to="us-gaap_LongTermDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_DADavidsonAndCoMember" xlink:label="strl_DADavidsonAndCoMember" xlink:type="locator"/>
    <link:label xlink:label="strl_DADavidsonAndCoMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">D.A. Davidson and Co. [Member]</link:label>
    <link:label xlink:label="strl_DADavidsonAndCoMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents D.A. Davidson and Co.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_DADavidsonAndCoMember" xlink:to="strl_DADavidsonAndCoMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NotesPayable" xlink:label="us-gaap_NotesPayable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NotesPayable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes payable for transportation and construction equipment and other</link:label>
    <link:label xlink:label="us-gaap_NotesPayable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NotesPayable" xlink:to="us-gaap_NotesPayable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:to="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="us-gaap_IncreaseDecreaseInInventories" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInInventories</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInInventories-label" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInInventories" xlink:to="us-gaap_IncreaseDecreaseInInventories-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="us-gaap_RevolvingCreditFacilityMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RevolvingCreditFacilityMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Revolving Credit Facility [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevolvingCreditFacilityMember" xlink:to="us-gaap_RevolvingCreditFacilityMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TableTextBlock" xlink:label="us-gaap_TableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_TableTextBlock</link:label>
    <link:label xlink:label="us-gaap_TableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Notes Tables</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TableTextBlock" xlink:to="us-gaap_TableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementTable" xlink:label="us-gaap_StatementTable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementTable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Table]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="us-gaap_CreditFacilityDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CreditFacilityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Credit Facility [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CreditFacilityDomain" xlink:to="us-gaap_CreditFacilityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_VariableInterestEntitiesTextBlock" xlink:label="strl_VariableInterestEntitiesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="strl_VariableInterestEntitiesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities [Text Block]</link:label>
    <link:label xlink:label="strl_VariableInterestEntitiesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disclosure of variable interest entities (VIE), including, but not limited to the nature, purpose, size, and activities of the VIE, the carrying amount and classification of consolidated assets that are collateral for the VIE's obligations, lack of recourse if creditors (or beneficial interest holders) of a consolidated VIE have no recourse to the general credit of the primary beneficiary.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_VariableInterestEntitiesTextBlock" xlink:to="strl_VariableInterestEntitiesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInContractReceivablesNet" xlink:label="us-gaap_IncreaseDecreaseInContractReceivablesNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInContractReceivablesNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInContractReceivablesNet</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInContractReceivablesNet-label" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Contracts receivable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInContractReceivablesNet" xlink:to="us-gaap_IncreaseDecreaseInContractReceivablesNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInUnbilledReceivables</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInUnbilledReceivables-label" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Costs and estimated earnings in excess of billings on uncompleted contracts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInUnbilledReceivables" xlink:to="us-gaap_IncreaseDecreaseInUnbilledReceivables-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1" xlink:label="strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1" xlink:type="locator"/>
    <link:label xlink:label="strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:label xlink:label="strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net income including the portion attributable to the noncontolling interests including the noncontrolling owners' interests in earnings of subsidiaries and joint ventures.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1" xlink:to="strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ContractsReceivableUnpaidProjectContractPrice" xlink:label="strl_ContractsReceivableUnpaidProjectContractPrice" xlink:type="locator"/>
    <link:label xlink:label="strl_ContractsReceivableUnpaidProjectContractPrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_ContractsReceivableUnpaidProjectContractPrice</link:label>
    <link:label xlink:label="strl_ContractsReceivableUnpaidProjectContractPrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contracts Receivable, Unpaid Project Contract Price</link:label>
    <link:label xlink:label="strl_ContractsReceivableUnpaidProjectContractPrice-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of unpaid project contract price that the Company is entitled to.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ContractsReceivableUnpaidProjectContractPrice" xlink:to="strl_ContractsReceivableUnpaidProjectContractPrice-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount" xlink:label="us-gaap_DebtInstrumentCarryingAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentCarryingAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equipment-based Facility</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentCarryingAmount-label" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Carrying Value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentCarryingAmount" xlink:to="us-gaap_DebtInstrumentCarryingAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementOfStockholdersEquityAbstract" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfStockholdersEquityAbstract" xlink:to="us-gaap_StatementOfStockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementAbstract" xlink:label="us-gaap_IncomeStatementAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="us-gaap_DeferredFinanceCostsNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredFinanceCostsNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DeferredFinanceCostsNet</link:label>
    <link:label xlink:label="us-gaap_DeferredFinanceCostsNet-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less deferred loan costs</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract" xlink:label="us-gaap_StatementOfCashFlowsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementOfCashFlowsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_StatementOfCashFlowsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Loss on extinguishment of debt</link:label>
    <link:label xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Loss on extinguishment of debt</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DeferredFinanceCostsCurrentNet" xlink:label="us-gaap_DeferredFinanceCostsCurrentNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DeferredFinanceCostsCurrentNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DeferredFinanceCostsCurrentNet</link:label>
    <link:label xlink:label="us-gaap_DeferredFinanceCostsCurrentNet-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less current deferred loan costs</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsCurrentNet" xlink:to="us-gaap_DeferredFinanceCostsCurrentNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsToMinorityShareholders" xlink:label="us-gaap_PaymentsToMinorityShareholders" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsToMinorityShareholders-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsToMinorityShareholders</link:label>
    <link:label xlink:label="us-gaap_PaymentsToMinorityShareholders-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Distributions to noncontrolling interest owners</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToMinorityShareholders" xlink:to="us-gaap_PaymentsToMinorityShareholders-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Other assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:to="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareBasicAndDilutedAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income (loss) per share attributable to Sterling common stockholders:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDilutedAbstract" xlink:to="us-gaap_EarningsPerShareBasicAndDilutedAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestExpenseMember" xlink:label="us-gaap_InterestExpenseMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestExpenseMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseMember" xlink:to="us-gaap_InterestExpenseMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OperatingIncomeLossMember" xlink:label="us-gaap_OperatingIncomeLossMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingIncomeLossMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating Income (Loss) [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLossMember" xlink:to="us-gaap_OperatingIncomeLossMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</link:label>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Gain on disposal of property and equipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:to="us-gaap_GainLossOnSaleOfPropertyPlantEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredIncomeTaxes" xlink:label="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInDeferredIncomeTaxes</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Deferred Income Taxes</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes" xlink:to="us-gaap_IncreaseDecreaseInDeferredIncomeTaxes-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="us-gaap_IncomeStatementLocationDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementLocationDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationDomain" xlink:to="us-gaap_IncomeStatementLocationDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount</link:label>
    <link:label xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Diluted (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="us-gaap_IncomeStatementLocationAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeStatementLocationAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementLocationAxis" xlink:to="us-gaap_IncomeStatementLocationAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MaximumMember" xlink:label="us-gaap_MaximumMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MaximumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Maximum [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MaximumMember" xlink:to="us-gaap_MaximumMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinimumMember" xlink:label="us-gaap_MinimumMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MinimumMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Minimum [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinimumMember" xlink:to="us-gaap_MinimumMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RangeAxis" xlink:label="us-gaap_RangeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RangeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeAxis" xlink:to="us-gaap_RangeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="us-gaap_DebtInstrumentAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RangeMember" xlink:label="us-gaap_RangeMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RangeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Range [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RangeMember" xlink:to="us-gaap_RangeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="us-gaap_DebtInstrumentNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="us-gaap_DebtInstrumentNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:label="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:type="locator"/>
    <link:label xlink:label="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings</link:label>
    <link:label xlink:label="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Member&#8217;s interest subject to mandatory redemption and undistributed earnings</link:label>
    <link:label xlink:label="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the increase (decrease) in member's interest subject to mandatory redemption and undistributed earnings.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:to="strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures" xlink:label="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures" xlink:type="locator"/>
    <link:label xlink:label="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures</link:label>
    <link:label xlink:label="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures-label" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Receivables from and equity in construction joint ventures</link:label>
    <link:label xlink:label="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net change during the reporting period in Equity in and Receivable from unconsolidated joint ventures.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures" xlink:to="strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SharePrice" xlink:label="us-gaap_SharePrice" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SharePrice-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_SharePrice</link:label>
    <link:label xlink:label="us-gaap_SharePrice-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Price</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharePrice" xlink:to="us-gaap_SharePrice-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EarningsPerShareBasicAndDiluted" xlink:label="us-gaap_EarningsPerShareBasicAndDiluted" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareBasicAndDiluted-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basic and diluted (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareBasicAndDiluted" xlink:to="us-gaap_EarningsPerShareBasicAndDiluted-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="us-gaap_RepaymentsOfLongTermDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RepaymentsOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RepaymentsOfLongTermDebt</link:label>
    <link:label xlink:label="us-gaap_RepaymentsOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cumulative repayments &#8211; equipment-based term loan and other</link:label>
    <link:label xlink:label="us-gaap_RepaymentsOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repayments of Long-term Debt</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLongTermDebt" xlink:to="us-gaap_RepaymentsOfLongTermDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GeneralAndAdministrativeExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GeneralAndAdministrativeExpense</link:label>
    <link:label xlink:label="us-gaap_GeneralAndAdministrativeExpense-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">General and administrative expenses</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_MyersAndSonsConstructionMember" xlink:label="strl_MyersAndSonsConstructionMember" xlink:type="locator"/>
    <link:label xlink:label="strl_MyersAndSonsConstructionMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Myers and Sons Construction [Member]</link:label>
    <link:label xlink:label="strl_MyersAndSonsConstructionMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents information pertaining to Myers &amp; Sons Construction, L.P.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_MyersAndSonsConstructionMember" xlink:to="strl_MyersAndSonsConstructionMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="us-gaap_LongTermDebtNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LongTermDebtNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total long-term debt</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtNoncurrent" xlink:to="us-gaap_LongTermDebtNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained deficit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesAndStockholdersEquity</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liabilities and equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock issued in equity offering, net of expense (in shares)</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Stock Issued During Period, Shares, New Issues</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock issued in equity offering, net of expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EquityMethodInvestmentOwnershipPercentage</link:label>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Equity Method Investment, Ownership Percentage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="us-gaap_EquityMethodInvestmentOwnershipPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis" xlink:type="locator"/>
    <link:label xlink:label="dei_LegalEntityAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_LegalEntityAxis" xlink:to="dei_LegalEntityAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherCurrentLiabilitiesMember" xlink:label="us-gaap_OtherCurrentLiabilitiesMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherCurrentLiabilitiesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Current Liabilities [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCurrentLiabilitiesMember" xlink:to="us-gaap_OtherCurrentLiabilitiesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BuildingMember" xlink:label="us-gaap_BuildingMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BuildingMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Building [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BuildingMember" xlink:to="us-gaap_BuildingMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LeaseholdImprovementsMember" xlink:label="us-gaap_LeaseholdImprovementsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LeaseholdImprovementsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Leasehold Improvements [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseholdImprovementsMember" xlink:to="us-gaap_LeaseholdImprovementsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityRegistrantName" xlink:label="dei_EntityRegistrantName" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityRegistrantName-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityRegistrantName" xlink:to="dei_EntityRegistrantName-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCentralIndexKey" xlink:label="dei_EntityCentralIndexKey" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCentralIndexKey-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCentralIndexKey" xlink:to="dei_EntityCentralIndexKey-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LandMember" xlink:label="us-gaap_LandMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LandMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Land [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LandMember" xlink:to="us-gaap_LandMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityDomain" xlink:to="dei_EntityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInAccountsPayable</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsPayable" xlink:to="us-gaap_IncreaseDecreaseInAccountsPayable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RepaymentsOfSecuredDebt" xlink:label="us-gaap_RepaymentsOfSecuredDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RepaymentsOfSecuredDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RepaymentsOfSecuredDebt</link:label>
    <link:label xlink:label="us-gaap_RepaymentsOfSecuredDebt-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cumulative repayments &#8211; equipment-based revolver</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfSecuredDebt" xlink:to="us-gaap_RepaymentsOfSecuredDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross" xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock-based compensation (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross" xlink:to="us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherCurrentAssetsMember" xlink:label="us-gaap_OtherCurrentAssetsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherCurrentAssetsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Current Assets [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCurrentAssetsMember" xlink:to="us-gaap_OtherCurrentAssetsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock-based compensation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross" xlink:to="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherAssetsMember" xlink:label="us-gaap_OtherAssetsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherAssetsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Assets [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsMember" xlink:to="us-gaap_OtherAssetsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash received&#8211; equipment-based term loan</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:to="us-gaap_ProceedsFromIssuanceOfLongTermDebt-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_InterestExpenseAndAccretedInterest" xlink:label="strl_InterestExpenseAndAccretedInterest" xlink:type="locator"/>
    <link:label xlink:label="strl_InterestExpenseAndAccretedInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_InterestExpenseAndAccretedInterest</link:label>
    <link:label xlink:label="strl_InterestExpenseAndAccretedInterest-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Interest expense</link:label>
    <link:label xlink:label="strl_InterestExpenseAndAccretedInterest-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cost of borrowed funds accounted for as interest that was charged against earnings during the period. And, includes amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_InterestExpenseAndAccretedInterest" xlink:to="strl_InterestExpenseAndAccretedInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="dei_EntityCommonStockSharesOutstanding" xlink:type="locator"/>
    <link:label xlink:label="dei_EntityCommonStockSharesOutstanding-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Entity Common Stock, Shares Outstanding (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityCommonStockSharesOutstanding" xlink:to="dei_EntityCommonStockSharesOutstanding-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeLossFromSubsidiariesBeforeTax" xlink:label="us-gaap_IncomeLossFromSubsidiariesBeforeTax" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeLossFromSubsidiariesBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeLossFromSubsidiariesBeforeTax</link:label>
    <link:label xlink:label="us-gaap_IncomeLossFromSubsidiariesBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income (Loss) from Subsidiaries, before Tax</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromSubsidiariesBeforeTax" xlink:to="us-gaap_IncomeLossFromSubsidiariesBeforeTax-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity" xlink:label="strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity" xlink:type="locator"/>
    <link:label xlink:label="strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income attributable to noncontrolling interests included in equity</link:label>
    <link:label xlink:label="strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of net income or loss for the period allocated to the non-controlling interest included in equity in order to derive to the portion attributable to the parent.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity" xlink:to="strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests" xlink:label="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests" xlink:type="locator"/>
    <link:label xlink:label="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests</link:label>
    <link:label xlink:label="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Income (loss) before income taxes and earnings attributable to noncontrolling interests</link:label>
    <link:label xlink:label="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sum of operating profit and non-operating income (expense) before income taxes, extraordinary items, cumulative effects of changes in accounting principles, and non-controlling interest.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests" xlink:to="strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:label="us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Income Statement [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:to="us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_MembersInterestSubjectToMandatoryRedemption" xlink:label="strl_MembersInterestSubjectToMandatoryRedemption" xlink:type="locator"/>
    <link:label xlink:label="strl_MembersInterestSubjectToMandatoryRedemption-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Members&#8217; interest subject to mandatory redemption</link:label>
    <link:label xlink:label="strl_MembersInterestSubjectToMandatoryRedemption-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The Member's interest subject to mandatory redemption.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_MembersInterestSubjectToMandatoryRedemption" xlink:to="strl_MembersInterestSubjectToMandatoryRedemption-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:label="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:type="locator"/>
    <link:label xlink:label="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Member&#8217;s interest subject to mandatory redemption and undistributed earnings</link:label>
    <link:label xlink:label="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total liability</link:label>
    <link:label xlink:label="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The element that represents the member's interest subject to mandatory redemption and undistributed earnings.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings" xlink:to="strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GainLossOnSaleOfDerivatives" xlink:label="us-gaap_GainLossOnSaleOfDerivatives" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GainLossOnSaleOfDerivatives-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Realized loss from settlement of derivatives</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainLossOnSaleOfDerivatives" xlink:to="us-gaap_GainLossOnSaleOfDerivatives-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:label="us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Condensed Balance Sheet [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock" xlink:to="us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at beginning of period</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents at end of period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashAndCashEquivalentsAtCarryingValue-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_WarrantyTerm" xlink:label="strl_WarrantyTerm" xlink:type="locator"/>
    <link:label xlink:label="strl_WarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_WarrantyTerm</link:label>
    <link:label xlink:label="strl_WarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Warranty Term</link:label>
    <link:label xlink:label="strl_WarrantyTerm-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the warranty term.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_WarrantyTerm" xlink:to="strl_WarrantyTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_TradingSymbol" xlink:label="dei_TradingSymbol" xlink:type="locator"/>
    <link:label xlink:label="dei_TradingSymbol-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Trading Symbol</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_TradingSymbol" xlink:to="dei_TradingSymbol-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_OwnershipInterestInJointVenture" xlink:label="strl_OwnershipInterestInJointVenture" xlink:type="locator"/>
    <link:label xlink:label="strl_OwnershipInterestInJointVenture-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_OwnershipInterestInJointVenture</link:label>
    <link:label xlink:label="strl_OwnershipInterestInJointVenture-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ownership Interest in Joint Venture</link:label>
    <link:label xlink:label="strl_OwnershipInterestInJointVenture-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the ownership interest in joint venture.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_OwnershipInterestInJointVenture" xlink:to="strl_OwnershipInterestInJointVenture-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit" xlink:label="us-gaap_RepaymentsOfLinesOfCredit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RepaymentsOfLinesOfCredit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RepaymentsOfLinesOfCredit</link:label>
    <link:label xlink:label="us-gaap_RepaymentsOfLinesOfCredit-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cumulative daily repayments &#8211; Credit Facility</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfLinesOfCredit" xlink:to="us-gaap_RepaymentsOfLinesOfCredit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="us-gaap_OtherLiabilitiesNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherLiabilitiesNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other long-term liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesNoncurrent" xlink:to="us-gaap_OtherLiabilitiesNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_RevenueRecognitionPercentageOfCompletionRange" xlink:label="strl_RevenueRecognitionPercentageOfCompletionRange" xlink:type="locator"/>
    <link:label xlink:label="strl_RevenueRecognitionPercentageOfCompletionRange-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_RevenueRecognitionPercentageOfCompletionRange</link:label>
    <link:label xlink:label="strl_RevenueRecognitionPercentageOfCompletionRange-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenue Recognition Percentage of Completion Range</link:label>
    <link:label xlink:label="strl_RevenueRecognitionPercentageOfCompletionRange-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the length of time the Company's contracts generally take to complete.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_RevenueRecognitionPercentageOfCompletionRange" xlink:to="strl_RevenueRecognitionPercentageOfCompletionRange-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" xlink:label="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other long-term liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" xlink:to="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OfficeEquipmentMember" xlink:label="us-gaap_OfficeEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OfficeEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Office Equipment [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OfficeEquipmentMember" xlink:to="us-gaap_OfficeEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesNoncurrent" xlink:label="us-gaap_LiabilitiesNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LiabilitiesNoncurrent</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total long-term liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrent" xlink:to="us-gaap_LiabilitiesNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_NotesPayableForTransportationAndConstructionEquipmentMember" xlink:label="strl_NotesPayableForTransportationAndConstructionEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="strl_NotesPayableForTransportationAndConstructionEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Notes Payable for Transportation and Construction Equipment [Member]</link:label>
    <link:label xlink:label="strl_NotesPayableForTransportationAndConstructionEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the notes payable for transportation and construction equipment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_NotesPayableForTransportationAndConstructionEquipmentMember" xlink:to="strl_NotesPayableForTransportationAndConstructionEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings" xlink:label="us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Billings in excess of costs and estimated earnings on uncompleted contracts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings" xlink:to="us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TransportationEquipmentMember" xlink:label="us-gaap_TransportationEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TransportationEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transportation Equipment [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TransportationEquipmentMember" xlink:to="us-gaap_TransportationEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_CostsOfRevenueMember" xlink:label="strl_CostsOfRevenueMember" xlink:type="locator"/>
    <link:label xlink:label="strl_CostsOfRevenueMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs of Revenue [Member]</link:label>
    <link:label xlink:label="strl_CostsOfRevenueMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to information regarding costs of revenue.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_CostsOfRevenueMember" xlink:to="strl_CostsOfRevenueMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit" xlink:label="us-gaap_ProceedsFromLinesOfCredit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromLinesOfCredit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cumulative daily drawdowns &#8211; Credit Facility</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromLinesOfCredit" xlink:to="us-gaap_ProceedsFromLinesOfCredit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesOther" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockIssuedDuringPeriodSharesOther</link:label>
    <link:label xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="us-gaap_BalanceSheetLocationAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BalanceSheetLocationAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BalanceSheetLocationAxis" xlink:to="us-gaap_BalanceSheetLocationAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_Backlog" xlink:label="strl_Backlog" xlink:type="locator"/>
    <link:label xlink:label="strl_Backlog-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Backlog</link:label>
    <link:label xlink:label="strl_Backlog-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of backlog as of the balance sheet date.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_Backlog" xlink:to="strl_Backlog-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="us-gaap_BalanceSheetLocationDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BalanceSheetLocationDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BalanceSheetLocationDomain" xlink:to="us-gaap_BalanceSheetLocationDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncreaseDecreaseInAccruedLiabilities</link:label>
    <link:label xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued compensation and other liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments</link:label>
    <link:label xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income before tax</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ConstructionEquipmentMember" xlink:label="strl_ConstructionEquipmentMember" xlink:type="locator"/>
    <link:label xlink:label="strl_ConstructionEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction Equipment [Member]</link:label>
    <link:label xlink:label="strl_ConstructionEquipmentMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the construction equipment.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ConstructionEquipmentMember" xlink:to="strl_ConstructionEquipmentMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConstructionRevenue" xlink:label="us-gaap_ConstructionRevenue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConstructionRevenue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ConstructionRevenue</link:label>
    <link:label xlink:label="us-gaap_ConstructionRevenue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Revenues</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConstructionRevenue" xlink:to="us-gaap_ConstructionRevenue-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_SharePriceNet" xlink:label="strl_SharePriceNet" xlink:type="locator"/>
    <link:label xlink:label="strl_SharePriceNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_SharePriceNet</link:label>
    <link:label xlink:label="strl_SharePriceNet-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share Price, Net</link:label>
    <link:label xlink:label="strl_SharePriceNet-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Price of a single share of a number of saleable stocks of a company, net of underwriting discounts.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_SharePriceNet" xlink:to="strl_SharePriceNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockMember" xlink:label="us-gaap_CommonStockMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current assets:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="us-gaap_EquityComponentDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityComponentDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementEquityComponentsAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_StatementEquityComponentsAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DebtInstrumentInterestRateStatedPercentage</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</link:label>
    <link:label xlink:label="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net increase (decrease) in cash and cash equivalents</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_CostsAndEstimatedEarningsInExcessOfBillingsMember" xlink:label="strl_CostsAndEstimatedEarningsInExcessOfBillingsMember" xlink:type="locator"/>
    <link:label xlink:label="strl_CostsAndEstimatedEarningsInExcessOfBillingsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs and Estimated Earnings in Excess of Billings [Member]</link:label>
    <link:label xlink:label="strl_CostsAndEstimatedEarningsInExcessOfBillingsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Primary financial statement caption encompassing costs and estimated earnings in excess of billings.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_CostsAndEstimatedEarningsInExcessOfBillingsMember" xlink:to="strl_CostsAndEstimatedEarningsInExcessOfBillingsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_TexasMember" xlink:label="strl_TexasMember" xlink:type="locator"/>
    <link:label xlink:label="strl_TexasMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Texas [Member]</link:label>
    <link:label xlink:label="strl_TexasMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the state of Texas.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_TexasMember" xlink:to="strl_TexasMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProfitLoss" xlink:label="us-gaap_ProfitLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProfitLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ProfitLoss</link:label>
    <link:label xlink:label="us-gaap_ProfitLoss-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProfitLoss" xlink:to="us-gaap_ProfitLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="us-gaap_AdditionalPaidInCapitalMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapitalMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="us-gaap_RetainedEarningsMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RetainedEarningsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_MyersMember" xlink:label="strl_MyersMember" xlink:type="locator"/>
    <link:label xlink:label="strl_MyersMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Myers [Member]</link:label>
    <link:label xlink:label="strl_MyersMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The entity acquired.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_MyersMember" xlink:to="strl_MyersMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock" xlink:to="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_IncomeTaxExpenseBenefit</link:label>
    <link:label xlink:label="us-gaap_IncomeTaxExpenseBenefit-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Income tax (expense) benefit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock" xlink:to="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementClassOfStockAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Class of Stock [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_NumberOfProjectsWithClaims" xlink:label="strl_NumberOfProjectsWithClaims" xlink:type="locator"/>
    <link:label xlink:label="strl_NumberOfProjectsWithClaims-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_NumberOfProjectsWithClaims</link:label>
    <link:label xlink:label="strl_NumberOfProjectsWithClaims-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of Projects with Claims</link:label>
    <link:label xlink:label="strl_NumberOfProjectsWithClaims-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the number of projects in process of negotiating a claim.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_NumberOfProjectsWithClaims" xlink:to="strl_NumberOfProjectsWithClaims-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="us-gaap_NoncontrollingInterestMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncontrollingInterestMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncontrollingInterestMember" xlink:to="us-gaap_NoncontrollingInterestMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accrued compensation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:to="us-gaap_EmployeeRelatedLiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and Contingencies Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:label="us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis" xlink:to="us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:label="us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ClassificationOfVariableInterestEntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Classification [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassificationOfVariableInterestEntityDomain" xlink:to="us-gaap_ClassificationOfVariableInterestEntityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentFairValue" xlink:label="us-gaap_DebtInstrumentFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DebtInstrumentFairValue</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentFairValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentFairValue" xlink:to="us-gaap_DebtInstrumentFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterest" xlink:label="us-gaap_MinorityInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MinorityInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling interests</link:label>
    <link:label xlink:label="us-gaap_MinorityInterest-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance, beginning of period</link:label>
    <link:label xlink:label="us-gaap_MinorityInterest-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance, end of period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinorityInterest" xlink:to="us-gaap_MinorityInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent" xlink:label="us-gaap_AccruedIncomeTaxesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccruedIncomeTaxesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income taxes payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedIncomeTaxesCurrent" xlink:to="us-gaap_AccruedIncomeTaxesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="us-gaap_VariableInterestEntityPrimaryBeneficiaryMember-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_RepaymentsOfLongTermDebtPrepaymentPenalty" xlink:label="strl_RepaymentsOfLongTermDebtPrepaymentPenalty" xlink:type="locator"/>
    <link:label xlink:label="strl_RepaymentsOfLongTermDebtPrepaymentPenalty-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_RepaymentsOfLongTermDebtPrepaymentPenalty</link:label>
    <link:label xlink:label="strl_RepaymentsOfLongTermDebtPrepaymentPenalty-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Repayments of Long-term Debt, Prepayment Penalty</link:label>
    <link:label xlink:label="strl_RepaymentsOfLongTermDebtPrepaymentPenalty-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow of debt initially having maturity due after one year or beyond the normal operating cycle, if longer, related to a prepayment penalty.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_RepaymentsOfLongTermDebtPrepaymentPenalty" xlink:to="strl_RepaymentsOfLongTermDebtPrepaymentPenalty-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsPayableCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounts payable</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrent" xlink:to="us-gaap_AccountsPayableCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Variable Interest Entities [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:to="us-gaap_ScheduleOfVariableInterestEntitiesTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="us-gaap_AccruedLiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccruedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AccruedLiabilitiesCurrent</link:label>
    <link:label xlink:label="us-gaap_AccruedLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other current liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedLiabilitiesCurrent" xlink:to="us-gaap_AccruedLiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_UnapprovedChangeOrdersAmount" xlink:label="us-gaap_UnapprovedChangeOrdersAmount" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UnapprovedChangeOrdersAmount-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_UnapprovedChangeOrdersAmount</link:label>
    <link:label xlink:label="us-gaap_UnapprovedChangeOrdersAmount-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Unapproved Change Orders, Amount</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnapprovedChangeOrdersAmount" xlink:to="us-gaap_UnapprovedChangeOrdersAmount-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:label="us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PriorPeriodReclassificationAdjustmentDescription-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Reclassification, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PriorPeriodReclassificationAdjustmentDescription" xlink:to="us-gaap_PriorPeriodReclassificationAdjustmentDescription-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_LongTermDebtCurrentGross" xlink:label="strl_LongTermDebtCurrentGross" xlink:type="locator"/>
    <link:label xlink:label="strl_LongTermDebtCurrentGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_LongTermDebtCurrentGross</link:label>
    <link:label xlink:label="strl_LongTermDebtCurrentGross-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Current maturities of long-term debt</link:label>
    <link:label xlink:label="strl_LongTermDebtCurrentGross-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_LongTermDebtCurrentGross" xlink:to="strl_LongTermDebtCurrentGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockParOrStatedValuePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_NoncontrollingInterestInBacklog" xlink:label="strl_NoncontrollingInterestInBacklog" xlink:type="locator"/>
    <link:label xlink:label="strl_NoncontrollingInterestInBacklog-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sterling&#8217;s noncontrolling interest in backlog</link:label>
    <link:label xlink:label="strl_NoncontrollingInterestInBacklog-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the amount of non-controlling interest in backlog as of the balance sheet date.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_NoncontrollingInterestInBacklog" xlink:to="strl_NoncontrollingInterestInBacklog-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterestDisclosureTextBlock" xlink:label="us-gaap_MinorityInterestDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MinorityInterestDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinorityInterestDisclosureTextBlock" xlink:to="us-gaap_MinorityInterestDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity of Counterparty, Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis" xlink:to="us-gaap_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable</link:label>
    <link:label xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income before tax</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable" xlink:to="us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LegalEntityTypeOfCounterpartyDomain" xlink:label="us-gaap_LegalEntityTypeOfCounterpartyDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LegalEntityTypeOfCounterpartyDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Entity Type of Counterparty [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LegalEntityTypeOfCounterpartyDomain" xlink:to="us-gaap_LegalEntityTypeOfCounterpartyDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income attributable to noncontrolling interest included in equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:to="us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ReceivablesLongTermContractsOrPrograms" xlink:label="us-gaap_ReceivablesLongTermContractsOrPrograms" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ReceivablesLongTermContractsOrPrograms-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contracts receivable, including retainage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ReceivablesLongTermContractsOrPrograms" xlink:to="us-gaap_ReceivablesLongTermContractsOrPrograms-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_UseOfEstimates" xlink:label="us-gaap_UseOfEstimates" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_UseOfEstimates-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Use of Estimates, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_WaterRightsMember" xlink:label="strl_WaterRightsMember" xlink:type="locator"/>
    <link:label xlink:label="strl_WaterRightsMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Water Rights [Member]</link:label>
    <link:label xlink:label="strl_WaterRightsMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents water rights.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_WaterRightsMember" xlink:to="strl_WaterRightsMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="us-gaap_PreferredStockSharesIssued" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, shares issued (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_MajorityOwnedJointVenturesMember" xlink:label="strl_MajorityOwnedJointVenturesMember" xlink:type="locator"/>
    <link:label xlink:label="strl_MajorityOwnedJointVenturesMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Majority Owned Joint Ventures [Member]</link:label>
    <link:label xlink:label="strl_MajorityOwnedJointVenturesMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents majority owned joint ventures of the company.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_MajorityOwnedJointVenturesMember" xlink:to="strl_MajorityOwnedJointVenturesMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfDebtTableTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Debt [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDebtTableTextBlock" xlink:to="us-gaap_ScheduleOfDebtTableTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_TermLoanMember" xlink:label="strl_TermLoanMember" xlink:type="locator"/>
    <link:label xlink:label="strl_TermLoanMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Term Loan [Member]</link:label>
    <link:label xlink:label="strl_TermLoanMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to information regarding term loans.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_TermLoanMember" xlink:to="strl_TermLoanMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="us-gaap_PreferredStockValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockValue" xlink:to="us-gaap_PreferredStockValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvestmentsDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Method Investments and Joint Ventures Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentsDisclosureTextBlock" xlink:to="us-gaap_EquityMethodInvestmentsDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfDebtInstrumentsTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDebtInstrumentsTextBlock" xlink:to="us-gaap_ScheduleOfDebtInstrumentsTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, par value (in dollars per share)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="us-gaap_PreferredStockSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PreferredStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Preferred stock, shares authorized (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AllocatedShareBasedCompensationExpense</link:label>
    <link:label xlink:label="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allocated Share-based Compensation Expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net proceeds from stock issued</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from Issuance of Common Stock</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherOperatingIncomeExpenseNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other operating income (expense), net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherOperatingIncomeExpenseNet" xlink:to="us-gaap_OtherOperatingIncomeExpenseNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="us-gaap_OtherLiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherLiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesCurrent" xlink:to="us-gaap_OtherLiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="us-gaap_OperatingIncomeLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OperatingIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Operating income</link:label>
    <link:label xlink:label="us-gaap_OperatingIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Operating income (loss)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_GrossProfit" xlink:label="us-gaap_GrossProfit" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_GrossProfit</link:label>
    <link:label xlink:label="us-gaap_GrossProfit-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Gross profit</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GrossProfit" xlink:to="us-gaap_GrossProfit-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders" xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders</link:label>
    <link:label xlink:label="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Distributions to noncontrolling interest owners</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders" xlink:to="us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="us-gaap_LiabilitiesCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less current liabilities</link:label>
    <link:label xlink:label="us-gaap_LiabilitiesCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrent" xlink:to="us-gaap_LiabilitiesCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_UndistributedEarningsOfDomesticSubsidiariesNet" xlink:label="strl_UndistributedEarningsOfDomesticSubsidiariesNet" xlink:type="locator"/>
    <link:label xlink:label="strl_UndistributedEarningsOfDomesticSubsidiariesNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net accumulated earnings</link:label>
    <link:label xlink:label="strl_UndistributedEarningsOfDomesticSubsidiariesNet-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The net amount of undistributed earnings (distributed earnings) of domestic subsidiaries or domestic joint ventures intended to be permanent.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_UndistributedEarningsOfDomesticSubsidiariesNet" xlink:to="strl_UndistributedEarningsOfDomesticSubsidiariesNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesNoncurrentAbstract" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesNoncurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrentAbstract" xlink:to="us-gaap_LiabilitiesNoncurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_GraniteConstructionCorporationMember" xlink:label="strl_GraniteConstructionCorporationMember" xlink:type="locator"/>
    <link:label xlink:label="strl_GraniteConstructionCorporationMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Granite Construction Corporation [Member]</link:label>
    <link:label xlink:label="strl_GraniteConstructionCorporationMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Refers to information regarding the investment Granite Construction Corporation.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_GraniteConstructionCorporationMember" xlink:to="strl_GraniteConstructionCorporationMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ConsolidationPolicyTextBlock" xlink:label="us-gaap_ConsolidationPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ConsolidationPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consolidation, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConsolidationPolicyTextBlock" xlink:to="us-gaap_ConsolidationPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockValue" xlink:label="us-gaap_CommonStockValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, par value $0.01 per share; 28,000,000 shares authorized, 25,002,964 and 19,753,170 shares issued</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable" xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable</link:label>
    <link:label xlink:label="us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable" xlink:to="us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtInstrumentTerm" xlink:label="us-gaap_DebtInstrumentTerm" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtInstrumentTerm-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_DebtInstrumentTerm</link:label>
    <link:label xlink:label="us-gaap_DebtInstrumentTerm-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Debt Instrument, Term</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentTerm" xlink:to="us-gaap_DebtInstrumentTerm-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Plus: Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:to="us-gaap_NetIncomeLossAttributableToNoncontrollingInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="us-gaap_CommonStockSharesIssued" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesIssued-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares issued (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BasisOfAccountingPolicyPolicyTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Basis of Accounting, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfAccountingPolicyPolicyTextBlock" xlink:to="us-gaap_BasisOfAccountingPolicyPolicyTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommonStockSharesAuthorized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Common stock, shares authorized (in shares)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccountingPoliciesAbstract" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccountingPoliciesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accounting Policies [Abstract]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementLineItems" xlink:label="us-gaap_StatementLineItems" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementLineItems-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Statement [Line Items]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PolicyTextBlockAbstract" xlink:label="us-gaap_PolicyTextBlockAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PolicyTextBlockAbstract</link:label>
    <link:label xlink:label="us-gaap_PolicyTextBlockAbstract-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accounting Policies</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PolicyTextBlockAbstract" xlink:to="us-gaap_PolicyTextBlockAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BillingsInExcessOfCostCurrent" xlink:label="us-gaap_BillingsInExcessOfCostCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BillingsInExcessOfCostCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Billings in excess of costs and estimated earnings on uncompleted contracts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BillingsInExcessOfCostCurrent" xlink:to="us-gaap_BillingsInExcessOfCostCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures" xlink:label="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures" xlink:type="locator"/>
    <link:label xlink:label="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures</link:label>
    <link:label xlink:label="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Construction Backlog Attributable to Project Performed by Joint Ventures</link:label>
    <link:label xlink:label="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Amount of construction backlog attributable to project performed by joint ventures.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures" xlink:to="strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from investing activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_EstimatedConstructionGrossProfitLossBeforeTax" xlink:label="strl_EstimatedConstructionGrossProfitLossBeforeTax" xlink:type="locator"/>
    <link:label xlink:label="strl_EstimatedConstructionGrossProfitLossBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_EstimatedConstructionGrossProfitLossBeforeTax</link:label>
    <link:label xlink:label="strl_EstimatedConstructionGrossProfitLossBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Estimated Construction Gross (Loss) Profit, Before Tax</link:label>
    <link:label xlink:label="strl_EstimatedConstructionGrossProfitLossBeforeTax-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents net estimated gross profit (loss) before tax.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_EstimatedConstructionGrossProfitLossBeforeTax" xlink:to="strl_EstimatedConstructionGrossProfitLossBeforeTax-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash flows from operating activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by operating activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</link:label>
    <link:label xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash used in investing activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations</link:label>
    <link:label xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net cash provided by (used in) financing activities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_VariableInterestEntityOwnershipPercentage" xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_VariableInterestEntityOwnershipPercentage</link:label>
    <link:label xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_VariableInterestEntityOwnershipPercentage" xlink:to="us-gaap_VariableInterestEntityOwnershipPercentage-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="us-gaap_ScenarioUnspecifiedDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScenarioUnspecifiedDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario, Unspecified [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScenarioUnspecifiedDomain" xlink:to="us-gaap_ScenarioUnspecifiedDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TitleOfIndividualAxis" xlink:label="us-gaap_TitleOfIndividualAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TitleOfIndividualAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Title of Individual [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualAxis" xlink:to="us-gaap_TitleOfIndividualAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Relationship to Entity [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="us-gaap_TitleOfIndividualWithRelationshipToEntityDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="us-gaap_LongTermDebtCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LongTermDebtCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current maturities of long-term debt</link:label>
    <link:label xlink:label="us-gaap_LongTermDebtCurrent-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less current maturities of long-term debt, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LongTermDebtCurrent" xlink:to="us-gaap_LongTermDebtCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="us-gaap_StatementScenarioAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StatementScenarioAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementScenarioAxis" xlink:to="us-gaap_StatementScenarioAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ProceedsFromPaymentsForOtherFinancingActivities</link:label>
    <link:label xlink:label="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:to="us-gaap_ProceedsFromPaymentsForOtherFinancingActivities-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_SettlementOffer" xlink:label="strl_SettlementOffer" xlink:type="locator"/>
    <link:label xlink:label="strl_SettlementOffer-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">strl_SettlementOffer</link:label>
    <link:label xlink:label="strl_SettlementOffer-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Settlement Offer</link:label>
    <link:label xlink:label="strl_SettlementOffer-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The amount offered for the settlement of a case.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_SettlementOffer" xlink:to="strl_SettlementOffer-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment</link:label>
    <link:label xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Less accumulated depreciation</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property and equipment, net</link:label>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total property and equipment, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Goodwill" xlink:label="us-gaap_Goodwill" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Goodwill-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Goodwill</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="us-gaap_Goodwill-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="us-gaap_OtherAssetsNoncurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherAssetsNoncurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other assets, net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Tax Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="us-gaap_IncomeTaxDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DebtDisclosureTextBlock" xlink:label="us-gaap_DebtDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DebtDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureTextBlock" xlink:to="us-gaap_DebtDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PropertyPlantAndEquipmentGross-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, plant and equipment, gross</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Weighted average number of common shares outstanding used in computing per share amounts:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_IncomeTaxesPaid" xlink:label="us-gaap_IncomeTaxesPaid" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_IncomeTaxesPaid-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash paid during the period for income taxes</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaid" xlink:to="us-gaap_IncomeTaxesPaid-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InterestPaid" xlink:label="us-gaap_InterestPaid" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InterestPaid-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash paid during the period for interest</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaid" xlink:to="us-gaap_InterestPaid-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EquityMethodInvesteeNameDomain" xlink:label="us-gaap_EquityMethodInvesteeNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EquityMethodInvesteeNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvesteeNameDomain" xlink:to="us-gaap_EquityMethodInvesteeNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transportation and construction equipment acquired through financing arrangements</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1" xlink:to="us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Adjustments to reconcile net loss to net cash provided by (used in) operating activities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Non-cash items:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stockholders' Equity Note Disclosure [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Award [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="us-gaap_AwardTypeAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AwardTypeAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AwardTypeAxis" xlink:to="us-gaap_AwardTypeAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_LegalDisputeMember" xlink:label="strl_LegalDisputeMember" xlink:type="locator"/>
    <link:label xlink:label="strl_LegalDisputeMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Legal Dispute [Member]</link:label>
    <link:label xlink:label="strl_LegalDisputeMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A legal dispute in which the reporting entity is involved.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_LegalDisputeMember" xlink:to="strl_LegalDisputeMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net income attributable to Sterling common stockholders</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="us-gaap_DepreciationDepletionAndAmortization" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_DepreciationDepletionAndAmortization-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="us-gaap_DepreciationDepletionAndAmortization-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CorporateJointVentureMember" xlink:label="us-gaap_CorporateJointVentureMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CorporateJointVentureMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Corporate Joint Venture [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CorporateJointVentureMember" xlink:to="us-gaap_CorporateJointVentureMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SubsidiarySaleOfStockAxis" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_SaleOfStockNameOfTransactionDomain" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="us-gaap_NetIncomeLoss" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_NetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net loss attributable to Sterling common stockholders</link:label>
    <link:label xlink:label="us-gaap_NetIncomeLoss-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Net income (loss) attributable to Sterling common stockholders</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Liabilities" xlink:label="us-gaap_Liabilities" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Liabilities-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total liabilities</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CommitmentsAndContingencies-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments and contingencies (Note 5)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_InventoryNet" xlink:label="us-gaap_InventoryNet" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_InventoryNet-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Inventories</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InventoryNet" xlink:to="us-gaap_InventoryNet-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CostOfGoodsSold" xlink:label="us-gaap_CostOfGoodsSold" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CostOfGoodsSold-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_CostOfGoodsSold</link:label>
    <link:label xlink:label="us-gaap_CostOfGoodsSold-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Cost of revenues</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsSold" xlink:to="us-gaap_CostOfGoodsSold-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xml:lang="en-US">Balance</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xml:lang="en-US">Balance</link:label>
    <link:label xlink:label="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total equity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_Assets" xlink:label="us-gaap_Assets" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:label xlink:label="us-gaap_Assets-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LossContingencyAccrualProvision" xlink:label="us-gaap_LossContingencyAccrualProvision" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LossContingencyAccrualProvision-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LossContingencyAccrualProvision</link:label>
    <link:label xlink:label="us-gaap_LossContingencyAccrualProvision-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Loss Contingency Accrual, Provision</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingencyAccrualProvision" xlink:to="us-gaap_LossContingencyAccrualProvision-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LiabilitiesCurrentAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Current liabilities:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="us-gaap_RestrictedStockMember" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedStockMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Stock [Member]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedStockMember" xlink:to="us-gaap_RestrictedStockMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_OtherAssetsCurrent" xlink:label="us-gaap_OtherAssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_OtherAssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other current assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsCurrent" xlink:to="us-gaap_OtherAssetsCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="us-gaap_ShareBasedCompensation" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensation-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Stock-based compensation expense</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="us-gaap_AdditionalPaidInCapital" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AdditionalPaidInCapital-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional paid in capital</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapital" xlink:to="us-gaap_AdditionalPaidInCapital-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ContractsReceivableClaimsAndUncertainAmounts" xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ContractsReceivableClaimsAndUncertainAmounts</link:label>
    <link:label xlink:label="us-gaap_ContractsReceivableClaimsAndUncertainAmounts-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Contracts Receivable, Claims and Uncertain Amounts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractsReceivableClaimsAndUncertainAmounts" xlink:to="us-gaap_ContractsReceivableClaimsAndUncertainAmounts-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalents" xlink:label="us-gaap_RestrictedCashAndCashEquivalents" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_RestrictedCashAndCashEquivalents</link:label>
    <link:label xlink:label="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted Cash and Cash Equivalents</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RestrictedCashAndCashEquivalents" xlink:to="us-gaap_RestrictedCashAndCashEquivalents-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</link:label>
    <link:label xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Additions to property and equipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity</link:label>
    <link:label xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Line of Credit Facility, Current Borrowing Capacity</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:to="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</link:label>
    <link:label xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_UponDeathMember" xlink:label="strl_UponDeathMember" xlink:type="locator"/>
    <link:label xlink:label="strl_UponDeathMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Upon Death [Member]</link:label>
    <link:label xlink:label="strl_UponDeathMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Represents the scenario of upon death.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_UponDeathMember" xlink:to="strl_UponDeathMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:label="us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Costs and estimated earnings in excess of billings on uncompleted contracts</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear" xlink:to="us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired</link:label>
    <link:label xlink:label="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired-label" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Business Acquisition, Percentage of Voting Interests Acquired</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired" xlink:to="us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="us-gaap_AssetsCurrent" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:label xlink:label="us-gaap_AssetsCurrent-label" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total current assets</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrent" xlink:to="us-gaap_AssetsCurrent-label" xlink:type="arc"/>
    <link:loc xlink:href="strl-20160930.xsd#strl_CEOOfRHBMember" xlink:label="strl_CEOOfRHBMember" xlink:type="locator"/>
    <link:label xlink:label="strl_CEOOfRHBMember-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">CEO of RHB [Member]</link:label>
    <link:label xlink:label="strl_CEOOfRHBMember-label" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Rerpesents information pertaining to the CEO of RHB.</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="strl_CEOOfRHBMember" xlink:to="strl_CEOOfRHBMember-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_FairValueOfFinancialInstrumentsPolicy-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value of Financial Instruments, Policy [Policy Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FairValueOfFinancialInstrumentsPolicy" xlink:to="us-gaap_FairValueOfFinancialInstrumentsPolicy-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_StockholdersEquityAbstract" xlink:label="us-gaap_StockholdersEquityAbstract" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_StockholdersEquityAbstract-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sterling stockholders&#8217; equity:</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_EarningsPerShareTextBlock" xlink:label="us-gaap_EarningsPerShareTextBlock" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_EarningsPerShareTextBlock-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Earnings Per Share [Text Block]</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareTextBlock" xlink:to="us-gaap_EarningsPerShareTextBlock-label" xlink:type="arc"/>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:type="locator"/>
    <link:label xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment-label" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from sale of property and equipment</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment-label" xlink:type="arc"/>
  </link:labelLink>
</link:linkbase>
</XBRL>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.PRE
<SEQUENCE>11
<FILENAME>strl-20160930_pre.xml
<DESCRIPTION>XBRL PRESENTATION FILE
<TEXT>
<XBRL>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748006768">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Document And Entity Information - shares<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
<th class="th" colspan="1"></th>
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<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Oct. 28, 2016</div></th>
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<td class="text">&#160;<span></span>
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<td class="text">STERLING CONSTRUCTION CO INC<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">0000874238<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">strl<span></span>
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<td class="text">&#160;<span></span>
</td>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_CurrentFiscalYearEndDate', window );">Current Fiscal Year End Date</a></td>
<td class="text">--12-31<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityFilerCategory', window );">Entity Filer Category</a></td>
<td class="text">Accelerated Filer<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCurrentReportingStatus', window );">Entity Current Reporting Status</a></td>
<td class="text">Yes<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityVoluntaryFilers', window );">Entity Voluntary Filers</a></td>
<td class="text">No<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityWellKnownSeasonedIssuer', window );">Entity Well-known Seasoned Issuer</a></td>
<td class="text">No<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_EntityCommonStockSharesOutstanding', window );">Entity Common Stock, Shares Outstanding (in shares)</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">25,002,964<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentType', window );">Document Type</a></td>
<td class="text">10-Q<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentPeriodEndDate', window );">Document Period End Date</a></td>
<td class="text">Sep. 30,  2016<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalYearFocus', window );">Document Fiscal Year Focus</a></td>
<td class="text">2016<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_DocumentFiscalPeriodFocus', window );">Document Fiscal Period Focus</a></td>
<td class="text">Q3<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_AmendmentFlag', window );">Amendment Flag</a></td>
<td class="text">false<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_dei_AmendmentFlag">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>If the value is true, then the document is an amendment to previously-filed/accepted document.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_AmendmentFlag</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:booleanItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_CurrentFiscalYearEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>End date of current fiscal year in the format --MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_CurrentFiscalYearEndDate</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:gMonthDayItemType</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_dei_DocumentFiscalPeriodFocus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>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">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalPeriodFocus</td>
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<td><strong> Data Type:</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>
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</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentFiscalYearFocus</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<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_dei_DocumentInformationLineItems">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentInformationLineItems</td>
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<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_DocumentPeriodEndDate">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentPeriodEndDate</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>na</td>
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<td><strong> Period Type:</strong></td>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other".</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_DocumentType</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>dei:submissionTypeItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCentralIndexKey">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12b<br> -Subsection 1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCentralIndexKey</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:centralIndexKeyItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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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_dei_EntityCommonStockSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCommonStockSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityCurrentReportingStatus">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityCurrentReportingStatus</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityFilerCategory">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityFilerCategory</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
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</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityRegistrantName">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher SEC<br> -Name Regulation 12B<br> -Number 240<br> -Section 12b<br> -Subsection 1<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_EntityRegistrantName</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
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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_dei_EntityVoluntaryFilers">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityVoluntaryFilers</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_EntityWellKnownSeasonedIssuer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ 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_EntityWellKnownSeasonedIssuer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>dei:yesNoItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_TradingSymbol">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Trading symbol of an instrument as listed on an exchange.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_TradingSymbol</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>dei_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:normalizedStringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>13
<FILENAME>R2.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748564768">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</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">$ 43,021<span></span>
</td>
<td class="nump">$ 4,426<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ReceivablesLongTermContractsOrPrograms', window );">Contracts receivable, including retainage</a></td>
<td class="nump">105,415<span></span>
</td>
<td class="nump">82,112<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear', window );">Costs and estimated earnings in excess of billings on uncompleted contracts</a></td>
<td class="nump">31,989<span></span>
</td>
<td class="nump">26,905<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InventoryNet', window );">Inventories</a></td>
<td class="nump">4,000<span></span>
</td>
<td class="nump">2,535<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ReceivablesFromAndEquityInConstructionJointVenture', window );">Sterling&#8217;s receivables from and equity in construction joint ventures</a></td>
<td class="nump">9,469<span></span>
</td>
<td class="nump">12,930<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">6,170<span></span>
</td>
<td class="nump">6,013<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_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">200,064<span></span>
</td>
<td class="nump">134,921<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentNet', window );">Property and equipment, net</a></td>
<td class="nump">70,363<span></span>
</td>
<td class="nump">73,475<span></span>
</td>
</tr>
<tr class="ro">
<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">54,820<span></span>
</td>
<td class="nump">54,820<span></span>
</td>
</tr>
<tr class="re">
<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, net</a></td>
<td class="nump">2,968<span></span>
</td>
<td class="nump">2,949<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Assets', window );">Total assets</a></td>
<td class="nump">328,215<span></span>
</td>
<td class="nump">266,165<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesCurrentAbstract', window );"><strong>Current liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">76,861<span></span>
</td>
<td class="nump">58,959<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BillingsInExcessOfCostCurrent', window );">Billings in excess of costs and estimated earnings on uncompleted contracts</a></td>
<td class="nump">61,896<span></span>
</td>
<td class="nump">30,556<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtCurrent', window );">Current maturities of long-term debt</a></td>
<td class="nump">4,653<span></span>
</td>
<td class="nump">4,856<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccruedIncomeTaxesCurrent', window );">Income taxes payable</a></td>
<td class="nump">63<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_EmployeeRelatedLiabilitiesCurrent', window );">Accrued compensation</a></td>
<td class="nump">10,412<span></span>
</td>
<td class="nump">5,977<span></span>
</td>
</tr>
<tr class="re">
<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 );">Other current liabilities</a></td>
<td class="nump">5,545<span></span>
</td>
<td class="nump">3,896<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_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">159,430<span></span>
</td>
<td class="nump">104,311<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesNoncurrentAbstract', window );"><strong>Long-term liabilities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Total long-term debt</a></td>
<td class="nump">6,952<span></span>
</td>
<td class="nump">15,324<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings', window );">Member&#8217;s interest subject to mandatory redemption and undistributed earnings</a></td>
<td class="nump">46,466<span></span>
</td>
<td class="nump">50,438<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent', window );">Other long-term liabilities</a></td>
<td class="nump">911<span></span>
</td>
<td class="nump">338<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_LiabilitiesNoncurrent', window );">Total long-term liabilities</a></td>
<td class="nump">54,329<span></span>
</td>
<td class="nump">66,100<span></span>
</td>
</tr>
<tr class="ro">
<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 5)</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityAbstract', window );"><strong>Sterling 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_PreferredStockValue', window );">Preferred stock, par value $0.01 per share; 1,000,000 shares authorized, none issued</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockValue', window );">Common stock, par value $0.01 per share; 28,000,000 shares authorized, 25,002,964 and 19,753,170 shares issued</a></td>
<td class="nump">250<span></span>
</td>
<td class="nump">198<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdditionalPaidInCapital', window );">Additional paid in capital</a></td>
<td class="nump">208,435<span></span>
</td>
<td class="nump">188,147<span></span>
</td>
</tr>
<tr class="re">
<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 deficit</a></td>
<td class="num">(95,390)<span></span>
</td>
<td class="num">(92,500)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquity', window );">Total Sterling common stockholders&#8217; equity</a></td>
<td class="nump">113,295<span></span>
</td>
<td class="nump">95,845<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterest', window );">Noncontrolling interests</a></td>
<td class="nump">1,161<span></span>
</td>
<td class="num">(91)<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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Total equity</a></td>
<td class="nump">114,456<span></span>
</td>
<td class="nump">95,754<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LiabilitiesAndStockholdersEquity', window );">Total liabilities and equity</a></td>
<td class="nump">$ 328,215<span></span>
</td>
<td class="nump">$ 266,165<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 element that represents the member's interest subject to mandatory redemption and undistributed earnings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_ReceivablesFromAndEquityInConstructionJointVenture">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 minority-owned entities in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle). Also, includes the entity's equity in minority-owned joint ventures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_ReceivablesFromAndEquityInConstructionJointVenture</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedIncomeTaxesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(15)(b)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(15)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedIncomeTaxesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccruedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccruedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AdditionalPaidInCapital">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdditionalPaidInCapital</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6801-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&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_BillingsInExcessOfCostCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=68068069&amp;loc=d3e57788-111642<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=68068069&amp;loc=d3e57807-111642<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=68068069&amp;loc=d3e57795-111642<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BillingsInExcessOfCostCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash<br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3044-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash Equivalents<br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommitmentsAndContingencies">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03.(a),19)<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=25496072&amp;loc=d3e14326-108349<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.25)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommitmentsAndContingencies</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=68068069&amp;loc=d3e57795-111642<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.3(c)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 605<br> -SubTopic 35<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=68068069&amp;loc=d3e57807-111642<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostsInExcessOfBillingsOnUncompletedContractsOrProgramsExpectedToBeCollectedWithinOneYear</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_EmployeeRelatedLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeRelatedLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=35741047&amp;loc=d3e13816-109267<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6388280&amp;loc=d3e13770-109266<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=64834752&amp;loc=SL49117168-202975<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_InventoryNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.6(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 330<br> -SubTopic 10<br> -Section 35<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=68049868&amp;loc=d3e3927-108312<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InventoryNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesAndStockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(32))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesAndStockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of obligation due after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(26))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(23))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(25))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 201.5-02(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LiabilitiesNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-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_LiabilitiesOtherThanLongtermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregated carrying amounts of obligations as of the balance sheet date, excluding long-term debt, incurred as part of the normal operations that are expected to be paid after one year or beyond the normal operating cycle, if longer. Alternate captions include Total Deferred Credits and Other Liabilities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19,20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MinorityInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.31)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MinorityInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<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_OtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherAssetsNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of noncurrent assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherAssetsNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ReceivablesLongTermContractsOrPrograms">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.3(c))<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_ReceivablesLongTermContractsOrPrograms</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(23)(a)(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30)(a)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RetainedEarningsAccumulatedDeficit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(30))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 310<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SAB Topic 4.E)<br> -URI http://asc.fasb.org/extlink&amp;oid=27010918&amp;loc=d3e74512-122707<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(31))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquity</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4I<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4590271-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4568740-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4568447-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>14
<FILENAME>R3.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748069200">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares<br></strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</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_PreferredStockParOrStatedValuePerShare', window );">Preferred stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PreferredStockSharesAuthorized', window );">Preferred stock, shares authorized (in shares)</a></td>
<td class="nump">1,000,000<span></span>
</td>
<td class="nump">1,000,000<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_CommonStockParOrStatedValuePerShare', window );">Common stock, par value (in dollars per share)</a></td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
</tr>
<tr class="re">
<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">28,000,000<span></span>
</td>
<td class="nump">28,000,000<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CommonStockSharesIssued', window );">Common stock, shares issued (in shares)</a></td>
<td class="nump">25,002,964<span></span>
</td>
<td class="nump">19,753,170<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_CommonStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of common stock.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of common shares permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CommonStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CommonStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockParOrStatedValuePerShare">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockParOrStatedValuePerShare</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesAuthorized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesAuthorized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PreferredStockSharesIssued">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PreferredStockSharesIssued</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>15
<FILENAME>R4.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748418272">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Operations (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenues</a></td>
<td class="nump">$ 205,629<span></span>
</td>
<td class="nump">$ 176,000<span></span>
</td>
<td class="nump">$ 521,778<span></span>
</td>
<td class="nump">$ 471,107<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CostOfGoodsSold', window );">Cost of revenues</a></td>
<td class="num">(188,597)<span></span>
</td>
<td class="num">(161,542)<span></span>
</td>
<td class="num">(484,827)<span></span>
</td>
<td class="num">(454,374)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GrossProfit', window );">Gross profit</a></td>
<td class="nump">17,032<span></span>
</td>
<td class="nump">14,458<span></span>
</td>
<td class="nump">36,951<span></span>
</td>
<td class="nump">16,733<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GeneralAndAdministrativeExpense', window );">General and administrative expenses</a></td>
<td class="num">(9,575)<span></span>
</td>
<td class="num">(11,119)<span></span>
</td>
<td class="num">(29,221)<span></span>
</td>
<td class="num">(32,320)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherOperatingIncomeExpenseNet', window );">Other operating income (expense), net</a></td>
<td class="num">(3,785)<span></span>
</td>
<td class="num">(958)<span></span>
</td>
<td class="num">(7,143)<span></span>
</td>
<td class="nump">1,128<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OperatingIncomeLoss', window );">Operating income (loss)</a></td>
<td class="nump">3,672<span></span>
</td>
<td class="nump">2,381<span></span>
</td>
<td class="nump">587<span></span>
</td>
<td class="num">(14,459)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestIncomeOther', window );">Interest income</a></td>
<td class="nump">15<span></span>
</td>
<td class="nump">32<span></span>
</td>
<td class="nump">19<span></span>
</td>
<td class="nump">464<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_InterestExpenseAndAccretedInterest', window );">Interest expense</a></td>
<td class="num">(491)<span></span>
</td>
<td class="num">(1,087)<span></span>
</td>
<td class="num">(2,176)<span></span>
</td>
<td class="num">(2,103)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on extinguishment of debt</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(240)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests', window );">Income (loss) before income taxes and earnings attributable to noncontrolling interests</a></td>
<td class="nump">3,196<span></span>
</td>
<td class="nump">1,326<span></span>
</td>
<td class="num">(1,570)<span></span>
</td>
<td class="num">(16,338)<span></span>
</td>
</tr>
<tr class="re">
<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) benefit</a></td>
<td class="num">(41)<span></span>
</td>
<td class="nump">39<span></span>
</td>
<td class="num">(68)<span></span>
</td>
<td class="nump">8<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_ProfitLoss', window );">Net income (loss)</a></td>
<td class="nump">3,155<span></span>
</td>
<td class="nump">1,365<span></span>
</td>
<td class="num">(1,638)<span></span>
</td>
<td class="num">(16,330)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable', window );">Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures</a></td>
<td class="num">(740)<span></span>
</td>
<td class="num">(1,109)<span></span>
</td>
<td class="num">(1,252)<span></span>
</td>
<td class="num">(2,948)<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_NetIncomeLoss', window );">Net income (loss) attributable to Sterling common stockholders</a></td>
<td class="nump">$ 2,415<span></span>
</td>
<td class="nump">$ 256<span></span>
</td>
<td class="num">$ (2,890)<span></span>
</td>
<td class="num">$ (19,278)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDilutedAbstract', window );"><strong>Net income (loss) per share attributable to Sterling common stockholders:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Basic and diluted (in dollars per share)</a></td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.12)<span></span>
</td>
<td class="num">$ (1)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract', window );"><strong>Weighted average number of common shares outstanding used in computing per share amounts:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic', window );">Basic (in shares)</a></td>
<td class="nump">25,002,964<span></span>
</td>
<td class="nump">19,627,674<span></span>
</td>
<td class="nump">23,914,688<span></span>
</td>
<td class="nump">19,269,123<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted (in shares)</a></td>
<td class="nump">25,364,881<span></span>
</td>
<td class="nump">19,627,674<span></span>
</td>
<td class="nump">23,914,688<span></span>
</td>
<td class="nump">19,269,123<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 operating profit and non-operating income (expense) before income taxes, extraordinary items, cumulative effects of changes in accounting principles, and non-controlling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_IncomeBeforeIncomeTaxesAndEarningsAttributableToNoncontrollingInterests</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_InterestExpenseAndAccretedInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 cost of borrowed funds accounted for as interest that was charged against earnings during the period. And, includes amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_InterestExpenseAndAccretedInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_CostOfGoodsSold">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total costs related to goods produced and sold during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.2(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CostOfGoodsSold</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EarningsPerShareBasicAndDilutedAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDilutedAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=49170532&amp;loc=d3e12317-112629<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=49170532&amp;loc=d3e12355-112629<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GeneralAndAdministrativeExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.4)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GeneralAndAdministrativeExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GrossProfit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1,2)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GrossProfit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxExpenseBenefit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -Subparagraph (a),(b)<br> -URI http://asc.fasb.org/extlink&amp;oid=65882285&amp;loc=d3e32639-109319<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Income Tax Expense (or Benefit)<br> -URI http://asc.fasb.org/extlink&amp;oid=6515339<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_InterestIncomeOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of interest income earned from interest bearing assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestIncomeOther</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) attributable to other redeemable noncontrolling equity holder.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NoncontrollingInterestInNetIncomeLossOtherNoncontrollingInterestsRedeemable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<td><strong> Balance Type:</strong></td>
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<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_OtherOperatingIncomeExpenseNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherOperatingIncomeExpenseNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProfitLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4591552-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 19<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4569616-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (c)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=64809438&amp;loc=SL4573702-111684<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4591551-111686<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64809438&amp;loc=SL4573702-111684<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProfitLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=64863997&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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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<tr>
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<td><strong> Balance Type:</strong></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=64863997&amp;loc=d3e1448-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Weighted-Average Number of Common Shares Outstanding<br> -URI http://asc.fasb.org/extlink&amp;oid=6528421<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748581808">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Sterling common stockholders</a></td>
<td class="nump">$ 2,415<span></span>
</td>
<td class="nump">$ 256<span></span>
</td>
<td class="num">$ (2,890)<span></span>
</td>
<td class="num">$ (19,278)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity', window );">Net income attributable to noncontrolling interests included in equity</a></td>
<td class="nump">740<span></span>
</td>
<td class="nump">1,109<span></span>
</td>
<td class="nump">1,252<span></span>
</td>
<td class="nump">2,948<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxAbstract', window );"><strong>Other comprehensive income (loss), net of tax:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfDerivatives', window );">Realized loss from settlement of derivatives</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">24<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="nump">107<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax', window );">Change in the effective portion of unrealized loss in fair market value of derivatives</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(6)<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="num">(6)<span></span>
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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_ComprehensiveIncomeNetOfTax', window );">Comprehensive income (loss)</a></td>
<td class="nump">$ 3,155<span></span>
</td>
<td class="nump">$ 1,383<span></span>
</td>
<td class="num">$ (1,638)<span></span>
</td>
<td class="num">$ (16,229)<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of net income or loss for the period allocated to the non-controlling interest included in equity in order to derive to the portion attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_NetincomeAttributableToNoncontrollingInterestIncludedInequity</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Balance Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831223<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=66004124&amp;loc=d3e557-108580<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTax</td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ComprehensiveIncomeNetOfTaxAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ComprehensiveIncomeNetOfTaxAbstract</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>
<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_GainLossOnSaleOfDerivatives">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The difference between the book value and the sale price of options, swaps, futures, forward contracts, and other derivative instruments. This element refers to the gain (loss) included in earnings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04.13(h))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_GainLossOnSaleOfDerivatives</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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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
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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> Balance Type:</strong></td>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax">
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<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10A<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=66004124&amp;loc=SL7669646-108580<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 220<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=66004124&amp;loc=d3e637-108580<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6441202&amp;loc=d3e80720-113993<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 815<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4C<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=64837297&amp;loc=SL5624171-113959<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax</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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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6735351120">
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<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Condensed Consolidated Statement of Changes In Equity (Unaudited) - 9 months ended Sep. 30, 2016 - USD ($)<br> shares in Thousands, $ in Thousands</strong></div></th>
<th class="th"><div>Common Stock [Member]</div></th>
<th class="th"><div>Additional Paid-in Capital [Member]</div></th>
<th class="th"><div>Retained Earnings [Member]</div></th>
<th class="th"><div>Noncontrolling Interest [Member]</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_SharesOutstanding', window );">Balance (in shares) at Dec. 31, 2015</a></td>
<td class="nump">19,753<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Dec. 31, 2015</a></td>
<td class="nump">$ 198<span></span>
</td>
<td class="nump">$ 188,147<span></span>
</td>
<td class="num">$ (92,500)<span></span>
</td>
<td class="num">$ (91)<span></span>
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<td class="nump">$ 95,754<span></span>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1', window );">Net income (loss)</a></td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<td class="num">(2,890)<span></span>
</td>
<td class="nump">1,252<span></span>
</td>
<td class="num">(1,638)<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_StockIssuedDuringPeriodSharesShareBasedCompensationGross', window );">Stock-based compensation (in shares)</a></td>
<td class="nump">79<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="text">&#160;<span></span>
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<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross', window );">Stock-based compensation</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,211<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">1,211<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_StockIssuedDuringPeriodSharesNewIssues', window );">Stock issued in equity offering, net of expense (in shares)</a></td>
<td class="nump">5,175<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodValueNewIssues', window );">Stock issued in equity offering, net of expense</a></td>
<td class="nump">$ 52<span></span>
</td>
<td class="nump">19,090<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">19,142<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_StockIssuedDuringPeriodSharesOther', window );">Other (in shares)</a></td>
<td class="num">(4)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AdjustmentsToAdditionalPaidInCapitalOther', window );">Other</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(13)<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="num">(13)<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharesOutstanding', window );">Balance (in shares) at Sep. 30, 2016</a></td>
<td class="nump">25,003<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest', window );">Balance at Sep. 30, 2016</a></td>
<td class="nump">$ 250<span></span>
</td>
<td class="nump">$ 208,435<span></span>
</td>
<td class="num">$ (95,390)<span></span>
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<td class="nump">$ 1,161<span></span>
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<td class="nump">$ 114,456<span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net income including the portion attributable to the noncontolling interests including the noncontrolling owners' interests in earnings of subsidiaries and joint ventures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_NetIncomeLossIncludingPortionAttributableToNoncontrollingInterest1</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 other increase (decrease) in additional paid in capital (APIC).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AdjustmentsToAdditionalPaidInCapitalOther</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>Number of shares issued which are neither cancelled nor held in the treasury.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodSharesOther">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 stock issued attributable to transactions 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_StockIssuedDuringPeriodSharesOther</td>
</tr>
<tr>
<td style="padding-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_StockIssuedDuringPeriodSharesShareBasedCompensationGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationGross</td>
</tr>
<tr>
<td style="padding-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_StockIssuedDuringPeriodValueNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Gross value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP). Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4I<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4590271-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4568740-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4568447-111683<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
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<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</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_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember</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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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748514768">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</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_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract', window );"><strong>Cash flows from operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Sterling common stockholders</a></td>
<td class="num">$ (2,890)<span></span>
</td>
<td class="num">$ (19,278)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest', window );">Plus: Noncontrolling owners&#8217; interests in earnings of subsidiaries and joint ventures</a></td>
<td class="nump">1,252<span></span>
</td>
<td class="nump">2,948<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest', window );">Net loss</a></td>
<td class="num">(1,638)<span></span>
</td>
<td class="num">(16,330)<span></span>
</td>
</tr>
<tr class="re">
<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 loss to net cash provided by (used in) operating activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DepreciationDepletionAndAmortization', window );">Depreciation and amortization</a></td>
<td class="nump">12,097<span></span>
</td>
<td class="nump">12,479<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainLossOnSaleOfPropertyPlantEquipment', window );">Gain on disposal of property and equipment</a></td>
<td class="num">(255)<span></span>
</td>
<td class="num">(1,205)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensation', window );">Stock-based compensation expense</a></td>
<td class="nump">1,211<span></span>
</td>
<td class="nump">1,319<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_GainsLossesOnExtinguishmentOfDebt', window );">Loss on extinguishment of debt</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">240<span></span>
</td>
</tr>
<tr class="ro">
<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_IncreaseDecreaseInContractReceivablesNet', window );">Contracts receivable</a></td>
<td class="num">(23,303)<span></span>
</td>
<td class="num">(20,770)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInUnbilledReceivables', window );">Costs and estimated earnings in excess of billings on uncompleted contracts</a></td>
<td class="num">(5,084)<span></span>
</td>
<td class="nump">10,116<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInInventories', window );">Inventories</a></td>
<td class="num">(1,465)<span></span>
</td>
<td class="nump">4,821<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures', window );">Receivables from and equity in construction joint ventures</a></td>
<td class="nump">3,461<span></span>
</td>
<td class="num">(1,936)<span></span>
</td>
</tr>
<tr class="re">
<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 );">Other assets</a></td>
<td class="num">(1,246)<span></span>
</td>
<td class="nump">9,318<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccountsPayable', window );">Accounts payable</a></td>
<td class="nump">17,902<span></span>
</td>
<td class="nump">7,291<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_IncreaseDecreaseInBillingInExcessOfCostOfEarnings', window );">Billings in excess of costs and estimated earnings on uncompleted contracts</a></td>
<td class="nump">31,340<span></span>
</td>
<td class="nump">7,400<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInAccruedLiabilities', window );">Accrued compensation and other liabilities</a></td>
<td class="nump">6,662<span></span>
</td>
<td class="nump">4,230<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings', window );">Member&#8217;s interest subject to mandatory redemption and undistributed earnings</a></td>
<td class="num">(3,972)<span></span>
</td>
<td class="nump">1,101<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations', window );">Net cash provided by operating activities</a></td>
<td class="nump">35,710<span></span>
</td>
<td class="nump">3,492<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract', window );"><strong>Cash flows from investing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment', window );">Additions to property and equipment</a></td>
<td class="num">(8,852)<span></span>
</td>
<td class="num">(7,086)<span></span>
</td>
</tr>
<tr class="re">
<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">2,187<span></span>
</td>
<td class="nump">5,859<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInRestrictedCash', window );">Restricted cash</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(4,945)<span></span>
</td>
</tr>
<tr class="reu">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations', window );">Net cash used in investing activities</a></td>
<td class="num">(6,665)<span></span>
</td>
<td class="num">(6,172)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract', window );"><strong>Cash flows from financing activities:</strong></a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromLinesOfCredit', window );">Cumulative daily drawdowns &#8211; Credit Facility</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">112,848<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfLinesOfCredit', window );">Cumulative daily repayments &#8211; Credit Facility</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(147,450)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfLongTermDebt', window );">Cash received&#8211; equipment-based term loan</a></td>
<td class="text"> <span></span>
</td>
<td class="nump">18,980<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfLongTermDebt', window );">Cumulative repayments &#8211; equipment-based term loan and other</a></td>
<td class="num">(9,546)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromSecuredLinesOfCredit', window );">Cumulative drawdowns &#8211; equipment-based revolver</a></td>
<td class="nump">19,000<span></span>
</td>
<td class="nump">13,100<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfSecuredDebt', window );">Cumulative repayments &#8211; equipment-based revolver</a></td>
<td class="num">(19,000)<span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromIssuanceOfCommonStock', window );">Net proceeds from stock issued</a></td>
<td class="nump">19,142<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_PaymentsToMinorityShareholders', window );">Distributions to noncontrolling interest owners</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(3,402)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities', window );">Other</a></td>
<td class="num">(46)<span></span>
</td>
<td class="num">(2,751)<span></span>
</td>
</tr>
<tr class="rou">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations', window );">Net cash provided by (used in) financing activities</a></td>
<td class="nump">9,550<span></span>
</td>
<td class="num">(8,675)<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_CashAndCashEquivalentsPeriodIncreaseDecrease', window );">Net increase (decrease) in cash and cash equivalents</a></td>
<td class="nump">38,595<span></span>
</td>
<td class="num">(11,355)<span></span>
</td>
</tr>
<tr class="ro">
<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 at beginning of period</a></td>
<td class="nump">4,426<span></span>
</td>
<td class="nump">22,843<span></span>
</td>
</tr>
<tr class="re">
<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 at end of period</a></td>
<td class="nump">43,021<span></span>
</td>
<td class="nump">11,488<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_SupplementalCashFlowInformationAbstract', window );"><strong>Supplemental disclosures 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_InterestPaid', window );">Cash paid during the period for interest</a></td>
<td class="nump">2,429<span></span>
</td>
<td class="nump">1,893<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxesPaid', window );">Cash paid during the period for income taxes</a></td>
<td class="nump">5<span></span>
</td>
<td class="nump">547<span></span>
</td>
</tr>
<tr class="re">
<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 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_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1', window );">Transportation and construction equipment acquired through financing arrangements</a></td>
<td class="nump">$ 735<span></span>
</td>
<td class="nump">$ 1,161<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 increase (decrease) in member's interest subject to mandatory redemption and undistributed earnings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_IncreaseDecreaseInMembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 change during the reporting period in Equity in and Receivable from unconsolidated joint ventures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_IncreaseDecreaseInReceivablesFromAndEquityInConstructionJointVentures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_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_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash<br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3044-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash Equivalents<br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsAtCarryingValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 830<br> -SubTopic 230<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=49171198&amp;loc=d3e33268-110906<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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_DepreciationDepletionAndAmortization">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_GainLossOnSaleOfPropertyPlantEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainLossOnSaleOfPropertyPlantEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_GainsLossesOnExtinguishmentOfDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=49170532&amp;loc=d3e12317-112629<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 470<br> -SubTopic 50<br> -Section 40<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=49170532&amp;loc=d3e12355-112629<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_GainsLossesOnExtinguishmentOfDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The consolidated profit or loss for the period including the portion attributable to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.18)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossIncludingPortionAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeTaxesPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (f)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_IncreaseDecreaseInAccountsPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccountsPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInAccruedLiabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInAccruedLiabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInBillingInExcessOfCostOfEarnings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 liability reflecting cash payments received before the related costs have been incurred.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_IncreaseDecreaseInBillingInExcessOfCostOfEarnings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_IncreaseDecreaseInContractReceivablesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 receivables arising from the contracting of goods and services, net for uncollectible accounts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_IncreaseDecreaseInContractReceivablesNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInInventories</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInOperatingCapitalAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of increase (decrease) in prepaid expenses, and assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_IncreaseDecreaseInRestrictedCash">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3179-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3213-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Investing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInRestrictedCash</td>
</tr>
<tr>
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</tr>
<tr>
<td><strong> Data Type:</strong></td>
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<tr>
<td><strong> Balance Type:</strong></td>
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</tr>
<tr>
<td><strong> Period Type:</strong></td>
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</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInUnbilledReceivables">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The increase (decrease) during the reporting period of the amount of revenue for work performed for which billing has not occurred, net of uncollectible accounts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncreaseDecreaseInUnbilledReceivables</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<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_InterestPaid">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 for interest during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4297-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -Subparagraph (e)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_InterestPaid</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>
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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_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3574-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
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</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 );">- 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_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract</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>
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</table></div>
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<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 26<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3574-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3521-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
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<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
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<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
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<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
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<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 24<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3521-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 25<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3536-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_NetCashProvidedByUsedInOperatingActivitiesContinuingOperationsAbstract</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> Balance Type:</strong></td>
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<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/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of Net Income (Loss) attributable to noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4J<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4591551-111686<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1A<br> -Subparagraph (a)(2)<br> -URI http://asc.fasb.org/extlink&amp;oid=64809438&amp;loc=SL4573702-111684<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLossAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 fixed assets that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4304-108586<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4332-108586<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 50<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=6367179&amp;loc=d3e4313-108586<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_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_PaymentsToAcquirePropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Investing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 13<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3213-108585<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToAcquirePropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PaymentsToMinorityShareholders">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PaymentsToMinorityShareholders</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_ProceedsFromIssuanceOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_ProceedsFromIssuanceOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromIssuanceOfLongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3255-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromIssuanceOfLongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3255-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromLinesOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3095-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3098-108585<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_ProceedsFromPaymentsForOtherFinancingActivities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 12<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3179-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Investing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6516133<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ProceedsFromSecuredLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3255-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ProceedsFromSecuredLinesOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_RepaymentsOfLinesOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfLinesOfCredit</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RepaymentsOfLongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfLongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6738959344">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 1 - Business Summary and Significant Accounting Policies<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock', window );">Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0.25in">1.</td> <td style="text-align: justify; padding-right: 0.05in">Business Summary and Significant Accounting Policies</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Business Summary</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Sterling Construction Company, Inc. (&#x201c;Sterling&#x201d; or &#x201c;the Company&#x201d;), a Delaware corporation, is a leading heavy civil construction company that specializes in the building and reconstruction of transportation and water infrastructure projects in Texas, Utah, Nevada, Colorado, Arizona, California, Hawaii and other states in which there are construction opportunities. Its transportation infrastructure projects include highways, roads, bridges, airfields, ports and light rail. Its water infrastructure projects include water, wastewater and storm drainage systems.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Presentation</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (&#x201c;SEC&#x201d;) and should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2015 (&#x201c;2015 Form 10-K&#x201d;). Certain information and note disclosures prepared in accordance with accounting principles generally accepted in the United States of America (&#x201c;GAAP&#x201d;) have been either condensed or omitted pursuant to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company&#x2019;s financial position at September 30, 2016 and the results of operations and cash flows for the periods presented. The December 31, 2015 condensed consolidated balance sheet data herein was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Significant Accounting Policies</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company&#x2019;s significant accounting policies are more fully described in Note 1 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K. These accounting policies include, but are not limited to, those related to:</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div>  <table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;">  <tr style="vertical-align: top; text-align: justify"> <td style="width: 35pt; text-align: right">&#x2022;</td> <td style="width: 5pt"></td> <td style="text-align: justify">revenue recognition</td> </tr>  </table> <table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;">  <tr style="vertical-align: top; text-align: justify"> <td style="width: 35pt; text-align: right">&#x2022;</td> <td style="width: 5pt"></td> <td style="text-align: justify">contracts receivable, including retainage</td> </tr>  </table> <table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;">  <tr style="vertical-align: top; text-align: justify"> <td style="width: 35pt; text-align: right">&#x2022;</td> <td style="width: 5pt"></td> <td style="text-align: justify">valuation of property and equipment, goodwill and other long-lived assets</td> </tr>  </table> <table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;">  <tr style="vertical-align: top; text-align: justify"> <td style="width: 35pt; text-align: right">&#x2022;</td> <td style="width: 5pt"></td> <td style="text-align: justify">income taxes</td> </tr>  </table> <table cellpadding="0" cellspacing="0" style="font-size: 10pt; margin-top: 0pt; margin-bottom: 6pt; width: 700px;">  <tr style="vertical-align: top; text-align: justify"> <td style="width: 35pt; text-align: right">&#x2022;</td> <td style="width: 5pt"></td> <td style="text-align: justify">segment reporting</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">There have been no material changes to significant accounting policies since December 31, 2015.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Principles of Consolidation</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities. For investments in subsidiaries and construction joint ventures that are not wholly-owned, but where the Company exercises control, the equity held by the remaining owners and their portions of net income (loss) are reflected in the balance sheet line item &#x201c;Noncontrolling interests&#x201d; in &#x201c;Equity&#x201d; and the statement of operations line item &#x201c;Noncontrolling owners&#x2019; interests in earnings of subsidiaries and joint ventures,&#x201d; respectively. All significant intercompany accounts and transactions have been eliminated in consolidation. For all years presented, the Company had no subsidiaries where its ownership interests were less than 50%.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Where the Company is a noncontrolling joint venture partner, and otherwise not required to consolidate the joint venture entity, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line item (&#x201c;Receivables from and equity in construction joint ventures&#x201d;) in the condensed consolidated balance sheets. This method is an acceptable modification of the equity method of accounting which is a common practice in the construction industry. Refer to Note 7 for further information regarding the Company&#x2019;s construction joint ventures.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Under GAAP, the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity (&#x201c;VIE&#x201d;). This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring the Company to consolidate the entity in which it has a noncontrolling variable interest. Refer to Note 8 for further information regarding the Company&#x2019;s consolidated VIE.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div>  <!-- Field: Page; Sequence: 8 -->   <!-- Field: /Page --> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Use of Estimates</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain of the Company&#x2019;s accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets (including goodwill) and income taxes. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Reclassification</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Reclassifications have been made to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Revenue Recognition</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Our contracts generally take 12 to 36 months to complete. The Company generally provides a one to two-year warranty for workmanship under its contracts when completed. Warranty claims historically have been insignificant.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Changes in estimated revenues and gross margin resulted in a net charge of $0.6 million and a net charge of $1.1 million during the three months and nine months ended September 30, 2016, respectively, included in &#x201c;operating income (loss)&#x201d; on the condensed consolidated statements of operations<div style="display: inline; color: red">. </div>Changes in estimated revenues and gross margin resulted in a net charge of $1.1 million and $12.3 million during the three months and nine months ended September 30, 2015, respectively, included in &#x201c;operating income (loss)&#x201d; on the condensed consolidated statements of operations<div style="display: inline; color: red">.</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div>  <div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Change orders are modifications of an original contract that effectively change the existing provisions of the contract without adding new provisions or terms. Change orders may include changes in specifications or designs, manner of performance, facilities, equipment, materials, sites and period of completion of the work. Either we or our customers may initiate change orders.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div>  <div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company considers unapproved change orders to be contract variations for which we have customer approval for a change of scope but a price change associated with the scope change has not yet been agreed upon. Costs associated with unapproved change orders are included in the estimated costs to complete the contracts and are treated as project costs as incurred. The Company recognizes revenue equal to costs incurred on unapproved change orders when realization of price approval is probable. Unapproved change orders involve the use of estimates, and it is reasonably possible that revisions to the estimated costs and recoverable amounts may be required in future reporting periods to reflect changes in estimates or final agreements with customers. Change orders that are unapproved as to both price and scope are evaluated as claims.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company considers claims to be amounts in excess of agreed contract prices that we seek to collect from our customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders that are either in dispute or are unapproved as to both scope and price, or other causes of unanticipated additional contract costs. Claims are included in the calculation of revenue when realization is probable and amounts can be reliably determined to the extent costs are incurred. To support these requirements, the existence of the following items must be satisfied: 1. The contract or other evidence provides a legal basis for the claim; or a legal opinion has been obtained, stating that under the circumstances there is a reasonable basis to support the claim; 2. Additional costs are caused by circumstances that were unforeseen at the contract date and are not the result of deficiencies in the contractor&#x2019;s performance; 3. Costs associated with the claim are identifiable or otherwise determinable and are reasonable in view of the work performed; and 4. The evidence supporting the claim is objective and verifiable, not based on management&#x2019;s feel for the situation or on unsupported representations. Revenues in excess of contract costs incurred on claims is recognized when an agreement is reached with customers as to the value of the claims, which in some instances may not occur until after completion of work under the contract. Costs associated with claims are included in the estimated costs to complete the contracts and are treated as project costs when incurred.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div>    <!-- Field: Page; Sequence: 9 -->   <!-- Field: /Page -->   <div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its customers based on completing work associated with change orders with pending change order pricing or claims related to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If additional progress with an acceptable resolution is not reached, legal action will be taken.</div> <div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</div>  <div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Based upon our review of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders, claims and our entitled unpaid project price, together with the views of the Company&#x2019;s outside claim consultants, we concluded that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9 million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015, in &#x201c;Costs and estimated earnings in excess of billings on uncompleted contracts&#x201d; on our condensed consolidated balance sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ materially from estimated and recorded amounts.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Financial Instruments and Fair Value</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties. The Company&#x2019;s financial instruments are cash and cash equivalents, restricted cash used as collateral for a letter of credit and restricted cash maintained in an escrow account, short-term contracts receivable, accounts payable, notes payable, a revolving loan (the &#x201c;Revolving Loan&#x201d;) with Nations Fund I, LLC and Nations Equipment Finance, LLC, as administrative agent and collateral agent for the lender (&#x201c;Nations&#x201d;) and a term loan (the &#x201c;Term Loan&#x201d;) with Nations (combined, the &#x201c;Equipment-based Facility&#x201d;).</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The recorded values of cash and cash equivalents, restricted cash, short-term contracts receivable and accounts payable approximate their fair values based on their liquidity and/or short-term nature.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Refer to Note 11 regarding the fair value of the Revolving Loan and the Term Loan and notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (refer to Note 12 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K).</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">In order to assess the fair value of the Company&#x2019;s financial instruments, the Company uses the fair value hierarchy established by GAAP which prioritizes the inputs used in valuation techniques into the following three levels:</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 1 Inputs &#x2013; Based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 2 Inputs &#x2013; Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 3 Inputs &#x2013; Based on unobservable inputs reflecting the Company&#x2019;s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For each financial instrument, the Company uses the highest priority level input that is available in order to appropriately value that particular instrument. In certain instances, Level 1 inputs are not available and the Company must use Level 2 or Level 3 inputs. In these cases, the Company provides a description of the valuation techniques used and the inputs used in the fair value measurement.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Recent Accounting Pronouncements</div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In August 2016, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued guidance in Accounting Standards Update (&#x201c;ASU&#x201d;) No. 2016-15 (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update addresses specific cash flow issues with the objective of reducing existing diversity in practice. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div>   <!-- Field: Page; Sequence: 10 -->   <!-- Field: /Page --> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In June 2016, the FASB issued guidance in ASU No. 2016-13 Financial Instruments&#x2014;Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Among other things, these amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts (forward-looking). Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. This new guidance is effective for public entities for annual reporting periods, beginning after December 15, 2019, including interim reporting periods therein. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In April and May 2016, the FASB issued additional revenue recognition guidance in ASU No. 2016-12, No. 2016-11 and 2016-10 (Topic 606). All three of these standards provide implementation guidance and clarifications of ASU 2014-09, &#x201c;Revenue from Contracts with Customers.&#x201d; ASU 2016-10 provides additional guidance on identifying performance obligations and licensing, ASU 2016-11 rescinds SEC guidance based on the previous revenue recognition standards and ASU 2016-12 relates to narrow-scope improvements and practical expedients. All of these amendments are effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In March 2016, the FASB issued its new stock compensation guidance in ASU No. 2016-09 (Topic 718). First, under the new guidance, companies will be required to recognize the income tax effects of share-based awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital (&#x201c;APIC&#x201d;) or APIC pools will be eliminated). In addition, the new guidance allows a withholding amount of awarded shares with a fair value up to the amount of tax owed using the maximum, instead of the minimum, statutory tax rate without triggering liability classification for the award. Lastly, the new guidance allows companies to elect whether to account for forfeitures of share-based payments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number of awards expected to be forfeited and adjusting the estimate when it is likely to change, as is currently required. The new standard is effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company has chosen to early adopt this guidance and chosen to account for forfeitures of share-based payments by recognizing forfeitures of awards as they occur. The result of adopting this guidance was immaterial to the Company&#x2019;s condensed consolidated financial statements.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In February 2016, the FASB issued its new lease accounting guidance in ASU No. 2016-02, Leases (Topic 842).&nbsp;Under the new guidance, lessees will be required to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee&#x2019;s obligation to make lease payments arising from a lease, measured on a discounted basis and a right-of-use asset, which is an asset that represents the lessee&#x2019;s right to use, or control the use of, a specified asset for the lease term. The new standard is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years.&nbsp;The Company is currently evaluating the impact of the adoption of this ASU to the Company&#x2019;s consolidated financial statements and related disclosures.</div></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 organization, consolidation and basis of presentation of financial statements disclosure.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=35735333&amp;loc=d3e288-107754<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=68058157&amp;loc=d3e18780-107790<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 272<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=6373374&amp;loc=d3e70478-108055<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=64809438&amp;loc=d3e5614-111684<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6359566&amp;loc=d3e326-107755<br></p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6889605504">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 2 - Cash and Cash Equivalents and Restricted Cash<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</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_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_CashAndCashEquivalentsDisclosureTextBlock', window );">Cash and Cash Equivalents Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">2.</td> <td style="text-align: justify; padding-right: 0.05in">Cash and Cash Equivalents and Restricted Cash</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company considers all highly liquid investments with original or remaining maturities of three months or less at the time of purchase to be cash equivalents. Cash and cash equivalents include cash balances held by our wholly owned subsidiaries, as well as cash held by majority owned subsidiaries, construction joint ventures, and the Company&#x2019;s VIE that we consolidate. Refer to Note 8 for more information regarding the Company&#x2019;s consolidated VIE. Joint venture cash balances are limited to joint venture activities and are not available for other projects, general cash needs or distribution to us without approval of the board of directors, or equivalent body, of the respective joint ventures. At September 30, 2016 and December 31, 2015, cash and cash equivalents included $14.1 million and a minimal amount, respectively, belonging to a majority-owned joint venture which generally cannot be used for purposes outside the joint venture.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Restricted cash of approximately $3.0 million is included in &#x201c;other assets, net&#x201d; on the condensed consolidated balance sheets as of September 30, 2016 and December 31, 2015, and represents cash deposited by the Company into a separate account and designated as collateral for a standby letter of credit in the same amount in accordance with contractual agreements.&nbsp;Refer to Note 5 for more information about our standby letter of credit. In addition, restricted cash of approximately $2.0 million is included in &#x201c;other current assets&#x201d; on the condensed consolidated balances sheet as of September 30, 2016 and December 31, 2015, which represents cash deposited by a customer, for the benefit of the Company, in an escrow account which is restricted until the customer releases the restriction upon the completion of the job.&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company holds cash on deposit in U.S. banks, at times, in excess of federally insured limits. Management does not believe that the risk associated with keeping cash deposits in excess of federal deposit insurance limits represents a material risk.</div></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 cash and cash equivalent footnotes,  which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) 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. Generally, only investments maturing within three months from the date of acquisition qualify.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6738929648">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Property and Equipment<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</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_PropertyPlantAndEquipmentDisclosureTextBlock', window );">Property, Plant and Equipment Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">3.</td> <td style="text-align: justify; padding-right: 0.05in">Property and Equipment</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 1in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in">Property and equipment are summarized as follows (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: -0.75in; margin: 0pt 0.05in 0pt 1in">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br />2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid; text-align: center">December 31, <br />2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Construction equipment </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">121,371</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">114,724</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Transportation equipment </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">18,924</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">18,056</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Buildings </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">12,771</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,860</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Office equipment </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,041</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,810</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Leasehold improvement </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">915</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">894</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Construction in progress </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">96</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,986</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Land </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,509</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">4,257</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Water rights </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">160,827</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">153,787</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less accumulated depreciation </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(90,464</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(80,312</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 9pt">Total property and equipment, net </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">70,363</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">73,475</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div></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 long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.13-14)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=64827811&amp;loc=d3e1361-107760<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=64862545&amp;loc=d3e2921-110230<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br></p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6899721536">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 4 - Income Taxes<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeTaxDisclosureTextBlock', window );">Income Tax Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">4.</td> <td style="text-align: justify; padding-right: 0.05in">Income Taxes</td> </tr>  </table> <div style=" margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company and its subsidiaries file U.S. federal and various U.S. state income tax returns. Current income tax expense (or benefit) represents federal and state taxes based on tax paid or expected to be payable or receivable for the periods shown in the condensed consolidated statements of operations.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is not expecting a current federal tax liability due to sufficient net operating loss carry forwards. The Company may incur current state tax liabilities in states in which the Company does not have sufficient net operating loss carry forwards. A minimal tax expense was recorded for the three and nine months ended September 30, 2016 and a minimal tax benefit was recorded for the three and nine months ended September 30, 2015. The effective income tax rate varied from the statutory rate primarily as a result of the change in the valuation allowance, net income attributable to noncontrolling interest owners which is taxable to those owners rather than to the Company, state income taxes and other permanent differences.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company&#x2019;s deferred tax expense (or benefit) reflects the change in deferred tax assets or liabilities. The Company performs an analysis at the end of each reporting period to determine whether it is more likely than not the deferred tax assets are expected to be realized in future years. Based upon this analysis, a full valuation allowance has been applied to our net deferred tax assets as of September 30, 2016 and December 31, 2015. Therefore, there has been no change in net deferred taxes for the three and nine months ended September 30, 2016.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">As a result of the Company&#x2019;s analysis, management has determined that the Company does not have any material uncertain tax positions.</div></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 income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=65882285&amp;loc=d3e32559-109319<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 15<br> -URI http://asc.fasb.org/extlink&amp;oid=65882285&amp;loc=d3e32718-109319<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 9<br> -URI http://asc.fasb.org/extlink&amp;oid=65882285&amp;loc=d3e32639-109319<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 740<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=65882285&amp;loc=d3e32537-109319<br></p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6883255856">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 5 - Commitments and Contingencies<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</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_CommitmentsAndContingenciesDisclosureTextBlock', window );">Commitments and Contingencies Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">5.</td> <td style="text-align: justify; padding-right: 0.05in">Commitments and Contingencies</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is required by our insurance provider to obtain and hold a standby letter of credit. This letter of credit serves as a guarantee by the banking institution to pay our insurance provider the incurred claim costs attributable to our general liability, workers compensation and automobile liability claims, up to the amount stated in the standby letter of credit, in the event that these claims were not paid by the Company. Due to the change to our Equipment-based Facility, we have cash collateralized the letter of credit, resulting in the cash being designated as restricted. Refer to Note 2 for more information on our restricted cash.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the first six months of 2016, the Company recorded a legal reserve of $1.0 million as a result of a dispute between one of the Company&#x2019;s wholly-owned subsidiaries and a subcontractor. This amount was recorded as &#x201c;cost of revenues&#x201d; in our condensed statements of operations and was settled for $1.0 million during the second quarter of 2016. This matter is now resolved in its entirety.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company is the subject of certain other claims and lawsuits occurring in the normal course of business. Management, after consultation with legal counsel, does not believe that the outcome of these actions will have a material impact on the condensed consolidated financial statements of the Company.</div></div><span></span>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
<td class="text">&#160;<span></span>
</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_MinorityInterestDisclosureTextBlock', window );">Noncontrolling Interest Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">6.</td> <td style="text-align: justify; padding-right: 0.05in">Subsidiaries and Joint Ventures with Noncontrolling Owners&#x2019; Interests</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">&nbsp;</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The amended agreements, as described in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, resulted in an obligation to purchase Mr. Buenting&#x2019;s and Myers&#x2019; 50% members&#x2019; interest that the Company is certain to incur, either because of Mr. Buenting&#x2019;s or Mr. Myers&#x2019; death; therefore, the Company has classified the noncontrolling interest as mandatorily redeemable and has recorded a liability in &#x201c;Members&#x2019; interest subject to mandatory redemption and undistributed earnings&#x201d; on the condensed consolidated balance sheets. In addition, all undistributed earnings at the time of the noncontrolling owners&#x2019; death or permanent disability are also mandatorily payable. The liability consists of the following (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: center; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">September 30,</div> <div style=" margin-top: 0; margin-bottom: 0">2016</div></td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">December 31,</div> <div style=" margin-top: 0; margin-bottom: 0">2015</div></td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: left; text-indent: 0in">Members&#x2019; interest subject to mandatory redemption </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">40,000</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">40,000</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Net accumulated earnings </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">6,466</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,438</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt">Total liability </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">46,466</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,438</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Earnings for the three and nine months ended September 30, 2016 were $3.4 million and $7.3 million, respectively and $1.5 million and $0.8 million for the three and nine months ended September 30, 2015. These amounts were included in &#x201c;Other operating income, net&#x201d; on the Company&#x2019;s condensed consolidated statements of operations.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Changes in Noncontrolling Interests</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The following table summarizes the changes in the noncontrolling owners&#x2019; interests in subsidiaries and joint ventures (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: left">Balance, beginning of period </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">(91</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">7,462</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">Net income attributable to noncontrolling interest included in equity </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,252</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,948</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Distributions to noncontrolling interest owners</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,402</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt">Balance, end of period </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">1,161</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">7,008</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Net income attributable to noncontrolling interests for the nine months ended September 30, 2016, is primarily from the Company&#x2019;s majority-owned construction joint venture. Due to the events described in Note 2 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K, the Company&#x2019;s subsidiaries with noncontrolling interest earnings are less than the earnings in the prior year period.</div></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 noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6882995376">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Construction Joint Ventures<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
<td class="text">&#160;<span></span>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentsDisclosureTextBlock', window );">Equity Method Investments and Joint Ventures Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0.25in">7.</td> <td style="text-align: justify; padding-right: 0.05in">Construction Joint Ventures</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company participates in various construction joint ventures. Generally, each construction joint venture is formed to construct a specific project and is jointly controlled by the joint venture partners. Refer to Note 6 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K for further information about our joint ventures. Condensed combined financial amounts of joint ventures in which the Company has a noncontrolling interest and the Company&#x2019;s share of such amounts which are included in the Company&#x2019;s condensed consolidated financial statements are shown below (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">September 30, <br /> 2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">December 31, <br /> 2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Total combined:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 70%; font-size: 10pt; text-align: left; padding-left: 20pt">Current assets</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">26,893</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">17,312</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1.1pt; padding-left: 20pt">Less current liabilities</td> <td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(51,181</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(49,371</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.5pt; padding-left: 40pt">Net assets</td> <td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(24,288</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(32,059</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; padding-left: 20pt">Backlog</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">125,850</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">35,113</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Sterling&#x2019;s noncontrolling interest in backlog</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">60,947</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">11,748</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">Sterling&#x2019;s receivables from and equity in construction joint ventures</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">9,469</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">12,930</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"></div></div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Total combined:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">15,520</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">9,458</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">44,074</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">50,450</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,925</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">808</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,838</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,866</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Sterling&#x2019;s portion of noncontrolling interest:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">6,103</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">3,437</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">17,567</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">19,986</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">519</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">357</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,370</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,021</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Approximately $61 million of the Company&#x2019;s backlog at September 30, 2016 was attributable to projects being performed by joint ventures. The majority of this amount is attributable to the Company&#x2019;s joint venture with Granite Construction Corporation, where the Company has a 49% interest.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The caption &#x201c;Receivables from and equity in construction joint ventures&#x201d; includes undistributed earnings and receivables owed to the Company. Undistributed earnings are typically released to the joint venture partners after the customer accepts the project as complete and the warranty period, if any, has passed.</div></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 equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6908506160">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Variable Interest Entities<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DisclosureTextBlockAbstract', window );"><strong>Notes to Financial Statements</strong></a></td>
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<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_VariableInterestEntitiesTextBlock', window );">Variable Interest Entities [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0.25in">8.</td> <td style="text-align: justify; padding-right: 0.05in">Variable Interest Entities</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company owns a 50% interest in Myers &amp; Sons Construction, L.P. (&#x201c;Myers&#x201d;), of which it is the primary beneficiary and has consolidated Myers into the Company&#x2019;s financial statements. Because the Company exercises primary control over activities of the partnership and it is exposed to the majority of potential losses of the partnership, the Company has consolidated Myers within the Company&#x2019;s financial statements since August 1, 2011, the date of acquisition. Refer to Note 3 of the Notes to Consolidated Financial Statements included in the 2015 Form 10-K for additional information on the acquisition of this limited partnership.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The condensed financial information of Myers, which is reflected in the Company&#x2019;s condensed consolidated balance sheets and statements of operations, is as follows (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br />2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, <br />2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Assets:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify">Current assets: </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt">Cash and cash equivalents </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">2,074</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">3,226</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Contracts receivable, including retainage </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">25,107</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,941</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current assets </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,052</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">15,887</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current assets </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">37,233</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">39,054</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Property and equipment, net </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,279</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,080</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Goodwill </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total assets </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">49,013</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,635</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify">Liabilities:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Current liabilities: </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accounts payable </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">25,907</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">20,596</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current liabilities </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">11,541</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,986</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current liabilities </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">37,448</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">31,582</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Long-term liabilities:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other long-term liabilities </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">425</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,370</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total liabilities </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">37,873</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">34,952</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">Nine Months Ended</div> <div style=" margin-top: 0; margin-bottom: 0">September 30,</div></td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 40%; font-size: 10pt; text-align: left; text-indent: 0in">Revenues </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">50,739</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">43,444</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">121,649</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">134,035</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Operating income </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,720</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,216</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">4,894</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,885</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt; text-indent: -10pt">Net income attributable to Sterling common stockholders</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,357</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,108</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,440</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,941</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div></div><span></span>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of variable interest entities (VIE), including, but not limited to the nature, purpose, size, and activities of the VIE, the carrying amount and classification of consolidated assets that are collateral for the VIE's obligations, lack of recourse if creditors (or beneficial interest holders) of a consolidated VIE have no recourse to the general credit of the primary beneficiary.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></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;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6895886032">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Stockholders' Equity<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">9.</td> <td style="text-align: justify; padding-right: 0.05in">Stockholders&#x2019; Equity</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Stock Offering</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">On May 9, 2016, the Company completed an underwritten public offering of 5,175,000 shares of the Company&#x2019;s common stock, which included the full exercise of the sole underwriter&#x2019;s over-allotment option, at a price to the public of $4.00 per share ($3.77 per share net of underwriting discounts). The net proceeds from the offering of $19.1 million, after deducting underwriting discounts and other offering expenses, were used for working capital, repayment of our indebtedness under the revolving loan portion of our Equipment-based Facility and for general corporate purposes.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div>  <!-- Field: Page; Sequence: 15 -->   <!-- Field: /Page --> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Stock-Based Compensation</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company has a stock-based incentive plan which is administered by the Compensation Committee of the Board of Directors. Refer to Note 14 of the Notes to Consolidated Financial Statements included in the 2015 Form 10-K for further information.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the three and nine months ended September 30, 2016, the Company awarded a total of zero and 79,240 shares of common stock, respectively, at a weighted-average grant date value of zero and $4.36 per share, respectively, based on the closing price of the Company&#x2019;s common stock on the date of award. The Company recorded stock-based compensation expense of $0.4 million and $1.2 million for the three months and nine months ended September 30, 2016, respectively, and $0.8 million and $1.3 million for the three and nine months ended September 30, 2015, respectively.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">At September 30, 2016, total unrecognized compensation cost related to unvested common stock awards was $2.3 million. This cost is expected to be recognized over a weighted average period of 1.5 years. At September 30, 2016, there were 0.8 million shares of common stock covered by outstanding unvested common stock.</div></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 shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6631103296">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Net Income (Loss) Per Share Attributable to Sterling Common Stockholders<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
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<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">10.</td> <td style="text-align: justify; padding-right: 0.05in">Net Income (Loss) per Share Attributable to Sterling Common Stockholders</td> </tr>  </table> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Basic net income (loss) per share attributable to Sterling common stockholders is computed by dividing net income (loss) attributable to Sterling common stockholders by the weighted average number of common shares outstanding during the period. Diluted net income (loss) per common share attributable to Sterling common stockholders is the same as basic net income (loss) per share attributable to Sterling common stockholders but includes dilutive unvested stock using the treasury stock method. 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text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">Numerator:</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 48%; font-size: 10pt; text-align: left; padding-left: 20pt; text-indent: -10pt">Net income (loss) attributable to Sterling common stockholders </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">2,415</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">256</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">(2,890</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">(19,278</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Denominator:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Weighted average common shares outstanding &#x2014; basic </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">25,003</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,628</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">23,915</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,269</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt">Shares for dilutive unvested stock </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">362</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 20pt; text-indent: -10pt">Weighted average common shares outstanding and incremental shares assumed repurchased&#x2014; diluted </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">25,365</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,628</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">23,915</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,269</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt">Basic and diluted income (loss) per share attributable to Sterling common stockholders </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.10</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.01</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(0.12</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(1.00</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td> </tr>  </table> </div> <div style=" font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In accordance with the treasury stock method, zero and approximately 0.3 million shares of unvested common stock were excluded from the calculation of the diluted weighted average common shares outstanding for the three and nine months ended September 30, 2016, as the Company incurred a loss during the nine month period and the impact of such shares would have been antidilutive. 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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Debt<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</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_DebtDisclosureTextBlock', window );">Debt Disclosure [Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="font-size: 10pt; font-weight: bold; margin-top: 0pt; margin-bottom: 0pt; width: 700px;">  <tr style="vertical-align: top"> <td style="width: 0"></td> <td style="width: 0.25in">11.</td> <td style="text-align: justify; padding-right: 0.05in">Debt</td> </tr>  </table> <div style=" font-size: 10pt; font-weight: bold; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Debt consists of the following (in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">September 30,</div> <div style=" margin-top: 0; margin-bottom: 0">2016</div></td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">December 31,</div> <div style=" margin-top: 0; margin-bottom: 0">2015</div></td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Equipment-based Facility </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">9,553</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less deferred loan costs </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(891</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,119</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in; padding-left: 10pt">Equipment-based Facility, net </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">8,662</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">16,838</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Notes payable for transportation and construction equipment and other </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,943</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,342</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">11,605</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">20,180</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Current maturities of long-term debt </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,009</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,192</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less current deferred loan costs </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(356</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(336</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in; padding-left: 10pt">Less current maturities of long-term debt, net </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,653</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,856</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total long-term debt </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">6,952</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">15,324</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Equipment-based Facility</div></div></div> <div style=" font-size: 10pt; text-align: left; text-indent: -0.25in; margin: 0pt 0 0pt 0.25in">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">At September 30, 2016, the Company had a borrowing base of $27.0 million, which was the result of calculating 65% of the appraised value (where appraised value equals net operating liquidated value) of the Company&#x2019;s collateral.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">During the three months ended September 30, 2016 the Company prepaid $5 million of the principal balance of our Term Loan and paid approximately $0.2 million as a prepayment fee which was recorded as &#x201c;interest expense&#x201d; in our condensed consolidated statement of operations.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Fair Value</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company&#x2019;s debt is recorded at its carrying amount in the condensed consolidated balance sheets. The Company uses an income approach to determine the fair value of its 12% Term Loan due May 29, 2019 using estimated cash flows, which is a Level&nbsp;3 fair value measurement. As of September 30, 2016, the carrying values and fair values are as follows (amounts in thousands):</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div> <div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 700px;">  <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, 2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, 2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Revolving Loan </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 48%; font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Term Loan </td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,553</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,527</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total Equipment-based Facility debt </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,553</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,527</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr>  </table> </div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Notes Payable for Transportation and Construction Equipment</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The Company has purchased and financed various transportation and construction equipment to enhance the Company&#x2019;s fleet of equipment. The total long-term notes payable related to the purchase of financed equipment was $2.9 million at September 30, 2016 and $3.3 million at December 31, 2015. The purchases have payment terms ranging from 3 to 5 years and the associated interest rates range from 3.12% to 7.13%. The fair value of these notes payable approximates their book value.</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-weight: bold;"><div style="display: inline; font-style: italic;">Interest Expense</div></div></div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div> <div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Interest expense related to our Equipment-based Facility and other debt for the three and nine months ended September 30, 2016 was $0.5 million and $2.2 million, respectively, and $1.1 million and $2.1 million for the three and nine months ended September 30, 2015, respectively. The decrease in interest expense for the three months ended September 30, 2016 was due to the decreased debt outstanding during the period. The slight increase in interest expense for the nine months ended September 30, 2016, was due to the prepayment fee discussed above and the higher interest rate on the Equipment-based Facility compared to the interest rate on our prior credit facility.</div></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 information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748353216">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Significant Accounting Policies (Policies)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</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, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Presentation</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The condensed consolidated financial statements included herein have been prepared by Sterling, without audit, in accordance with the rules and regulations of the Securities and Exchange Commission (&#x201c;SEC&#x201d;) and should be read in conjunction with the Annual Report on Form 10-K for the year ended December 31, 2015 (&#x201c;2015 Form 10-K&#x201d;). Certain information and note disclosures prepared in accordance with accounting principles generally accepted in the United States of America (&#x201c;GAAP&#x201d;) have been either condensed or omitted pursuant to SEC rules and regulations. The condensed consolidated financial statements reflect, in the opinion of management, all normal recurring adjustments necessary to present fairly the Company&#x2019;s financial position at September 30, 2016 and the results of operations and cash flows for the periods presented. The December 31, 2015 condensed consolidated balance sheet data herein was derived from audited financial statements, but as discussed above, does not include all disclosures required by GAAP. Interim results may be subject to significant seasonal variations and the results of operations for the three and nine months ended September 30, 2016 are not necessarily indicative of the results to be expected for the full year or subsequent quarters.</div></div></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_ConsolidationPolicyTextBlock', window );">Consolidation, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Principles of Consolidation</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The accompanying condensed consolidated financial statements include the accounts of subsidiaries and construction joint ventures in which the Company has a greater than 50% ownership interest or otherwise controls such entities. For investments in subsidiaries and construction joint ventures that are not wholly-owned, but where the Company exercises control, the equity held by the remaining owners and their portions of net income (loss) are reflected in the balance sheet line item &#x201c;Noncontrolling interests&#x201d; in &#x201c;Equity&#x201d; and the statement of operations line item &#x201c;Noncontrolling owners&#x2019; interests in earnings of subsidiaries and joint ventures,&#x201d; respectively. All significant intercompany accounts and transactions have been eliminated in consolidation. For all years presented, the Company had no subsidiaries where its ownership interests were less than 50%.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Where the Company is a noncontrolling joint venture partner, and otherwise not required to consolidate the joint venture entity, its share of the operations of such construction joint venture is accounted for on a pro rata basis in the condensed consolidated statements of operations and as a single line item (&#x201c;Receivables from and equity in construction joint ventures&#x201d;) in the condensed consolidated balance sheets. This method is an acceptable modification of the equity method of accounting which is a common practice in the construction industry. Refer to Note 7 for further information regarding the Company&#x2019;s construction joint ventures.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Under GAAP, the Company must determine whether each entity, including joint ventures in which it participates, is a variable interest entity (&#x201c;VIE&#x201d;). This determination focuses on identifying which owner or joint venture partner, if any, has the power to direct the activities of the entity and the obligation to absorb losses of the entity or the right to receive benefits from the entity disproportionate to its interest in the entity, which could have the effect of requiring the Company to consolidate the entity in which it has a noncontrolling variable interest. Refer to Note 8 for further information regarding the Company&#x2019;s consolidated VIE.</div></div></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_UseOfEstimates', window );">Use of Estimates, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Use of Estimates</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The preparation of the accompanying condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Certain of the Company&#x2019;s accounting policies require higher degrees of judgment than others in their application. These include the recognition of revenue and earnings from construction contracts under the percentage-of-completion method, the valuation of long-term assets (including goodwill) and income taxes. Management continually evaluates all of its estimates and judgments based on available information and experience; however, actual results could differ from these estimates.</div></div></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, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Reclassification</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Reclassifications have been made to historical financial data on our condensed consolidated financial statements to conform to our current year presentation.</div></div></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_RevenueRecognitionPercentageOfCompletionMethod', window );">Revenue Recognition, Percentage-of-Completion Method [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Revenue Recognition</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company is a general contractor which engages in various types of heavy civil construction projects principally for public (government) owners. Credit risk is minimal with public owners since the Company ascertains that funds have been appropriated by the governmental project owner prior to commencing work on such projects. While most public contracts are subject to termination at the election of the government entity, in the event of termination the Company is entitled to receive the contract price for completed work and reimbursement of termination-related costs. Credit risk with private owners is minimized because of statutory mechanics liens, which give the Company high priority in the event of lien foreclosures following financial difficulties of private owners.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Our contracts generally take 12 to 36 months to complete. The Company generally provides a one to two-year warranty for workmanship under its contracts when completed. Warranty claims historically have been insignificant.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Revenues are recognized on the percentage-of-completion method, measured by the ratio of costs incurred up to a given date to estimated total costs for each contract. This cost to cost measure is used because management considers it to be the best available measure of progress on these contracts. Contract costs include all direct material, labor, subcontract and other costs and those indirect costs related to contract performance, such as indirect salaries and wages, equipment repairs and depreciation, insurance and payroll taxes. Administrative and general expenses are charged to expense as incurred. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. Changes in job performance, job conditions and estimated profitability, including those changes arising from contract penalty provisions and final contract settlements may result in revisions to costs and income and are recognized in the period in which the revisions are determined.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">Changes in estimated revenues and gross margin resulted in a net charge of $0.6 million and a net charge of $1.1 million during the three months and nine months ended September 30, 2016, respectively, included in &#x201c;operating income (loss)&#x201d; on the condensed consolidated statements of operations<div style="display: inline; color: red">. </div>Changes in estimated revenues and gross margin resulted in a net charge of $1.1 million and $12.3 million during the three months and nine months ended September 30, 2015, respectively, included in &#x201c;operating income (loss)&#x201d; on the condensed consolidated statements of operations<div style="display: inline; color: red">.</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Change orders are modifications of an original contract that effectively change the existing provisions of the contract without adding new provisions or terms. Change orders may include changes in specifications or designs, manner of performance, facilities, equipment, materials, sites and period of completion of the work. Either we or our customers may initiate change orders.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company considers unapproved change orders to be contract variations for which we have customer approval for a change of scope but a price change associated with the scope change has not yet been agreed upon. Costs associated with unapproved change orders are included in the estimated costs to complete the contracts and are treated as project costs as incurred. The Company recognizes revenue equal to costs incurred on unapproved change orders when realization of price approval is probable. Unapproved change orders involve the use of estimates, and it is reasonably possible that revisions to the estimated costs and recoverable amounts may be required in future reporting periods to reflect changes in estimates or final agreements with customers. Change orders that are unapproved as to both price and scope are evaluated as claims.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">The Company considers claims to be amounts in excess of agreed contract prices that we seek to collect from our customers or others for customer-caused delays, errors in specifications and designs, contract terminations, change orders that are either in dispute or are unapproved as to both scope and price, or other causes of unanticipated additional contract costs. Claims are included in the calculation of revenue when realization is probable and amounts can be reliably determined to the extent costs are incurred. To support these requirements, the existence of the following items must be satisfied: 1. The contract or other evidence provides a legal basis for the claim; or a legal opinion has been obtained, stating that under the circumstances there is a reasonable basis to support the claim; 2. Additional costs are caused by circumstances that were unforeseen at the contract date and are not the result of deficiencies in the contractor&#x2019;s performance; 3. Costs associated with the claim are identifiable or otherwise determinable and are reasonable in view of the work performed; and 4. The evidence supporting the claim is objective and verifiable, not based on management&#x2019;s feel for the situation or on unsupported representations. Revenues in excess of contract costs incurred on claims is recognized when an agreement is reached with customers as to the value of the claims, which in some instances may not occur until after completion of work under the contract. Costs associated with claims are included in the estimated costs to complete the contracts and are treated as project costs when incurred.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0"></div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">The Company has projects where we are in the process of negotiating, or awaiting final approval of, unapproved change orders and claims with our customers. The Company is proceeding with its contractual rights to recoup additional costs incurred from its customers based on completing work associated with change orders with pending change order pricing or claims related to significant changes in scope which resulted in substantial delays and additional costs in completing the work. Unapproved change order and claim information has been provided to our customers and negotiations with the customers are ongoing. If additional progress with an acceptable resolution is not reached, legal action will be taken.</div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">&nbsp;</div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in"></div><div style=" font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.25in">Based upon our review of the provisions of our contracts, specific costs incurred and other related evidence supporting the unapproved change orders, claims and our entitled unpaid project price, together with the views of the Company&#x2019;s outside claim consultants, we concluded that including the unapproved change order, claim and entitled unpaid project price amounts of $2.4 million, $9.1 million and $3.9 million, respectively, at September 30, 2016, and $1.6 million, $5.2 million and $3.9 million, respectively, at December 31, 2015, in &#x201c;Costs and estimated earnings in excess of billings on uncompleted contracts&#x201d; on our condensed consolidated balance sheets was in accordance with GAAP. We expect these matters will be resolved without a material adverse effect on our financial statements. However, unapproved change order and claim amounts are subject to negotiations which may cause actual results to differ materially from estimated and recorded amounts.</div></div></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, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Financial Instruments and Fair Value</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The fair value of financial instruments is the amount at which the instrument could be exchanged in a current transaction between willing parties. The Company&#x2019;s financial instruments are cash and cash equivalents, restricted cash used as collateral for a letter of credit and restricted cash maintained in an escrow account, short-term contracts receivable, accounts payable, notes payable, a revolving loan (the &#x201c;Revolving Loan&#x201d;) with Nations Fund I, LLC and Nations Equipment Finance, LLC, as administrative agent and collateral agent for the lender (&#x201c;Nations&#x201d;) and a term loan (the &#x201c;Term Loan&#x201d;) with Nations (combined, the &#x201c;Equipment-based Facility&#x201d;).</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">The recorded values of cash and cash equivalents, restricted cash, short-term contracts receivable and accounts payable approximate their fair values based on their liquidity and/or short-term nature.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">Refer to Note 11 regarding the fair value of the Revolving Loan and the Term Loan and notes payable. The Company does not have any off-balance sheet financial instruments other than operating leases (refer to Note 12 of the Notes to Consolidated Financial Statements in the 2015 Form 10-K).</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">In order to assess the fair value of the Company&#x2019;s financial instruments, the Company uses the fair value hierarchy established by GAAP which prioritizes the inputs used in valuation techniques into the following three levels:</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0; background-color: white">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 1 Inputs &#x2013; Based upon quoted prices for identical assets in active markets that the Company has the ability to access at the measurement date.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 2 Inputs &#x2013; Based upon quoted prices (other than Level 1) in active markets for similar assets, quoted prices for identical or similar assets in markets that are not active, inputs other than quoted prices that are observable for the asset such as interest rates, yield curves, volatilities and default rates and inputs that are derived principally from or corroborated by observable market data.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">Level 3 Inputs &#x2013; Based on unobservable inputs reflecting the Company&#x2019;s own assumptions about the assumptions that market participants would use in pricing the asset based on the best information available.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0.25in">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">For each financial instrument, the Company uses the highest priority level input that is available in order to appropriately value that particular instrument. In certain instances, Level 1 inputs are not available and the Company must use Level 2 or Level 3 inputs. In these cases, the Company provides a description of the valuation techniques used and the inputs used in the fair value measurement.</div></div></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_NewAccountingPronouncementsPolicyPolicyTextBlock', window );">New Accounting Pronouncements, Policy [Policy Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style="display: inline; font-family: times new roman; font-size: 10pt"><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0"><div style="display: inline; font-style: italic;">Recent Accounting Pronouncements</div></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In August 2016, the Financial Accounting Standards Board (&#x201c;FASB&#x201d;) issued guidance in Accounting Standards Update (&#x201c;ASU&#x201d;) No. 2016-15 (Topic 230): Classification of Certain Cash Receipts and Cash Payments. This update addresses specific cash flow issues with the objective of reducing existing diversity in practice. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0"></div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In June 2016, the FASB issued guidance in ASU No. 2016-13 Financial Instruments&#x2014;Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments. Among other things, these amendments require the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts (forward-looking). Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. This new guidance is effective for public entities for annual reporting periods, beginning after December 15, 2019, including interim reporting periods therein. Early adoption is permitted for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In April and May 2016, the FASB issued additional revenue recognition guidance in ASU No. 2016-12, No. 2016-11 and 2016-10 (Topic 606). All three of these standards provide implementation guidance and clarifications of ASU 2014-09, &#x201c;Revenue from Contracts with Customers.&#x201d; ASU 2016-10 provides additional guidance on identifying performance obligations and licensing, ASU 2016-11 rescinds SEC guidance based on the previous revenue recognition standards and ASU 2016-12 relates to narrow-scope improvements and practical expedients. All of these amendments are effective for public entities for annual reporting periods beginning after December 15, 2017, including interim reporting periods therein. The Company is currently evaluating the impact of the adoption of this guidance to the Company&#x2019;s consolidated financial statements and related disclosures.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In March 2016, the FASB issued its new stock compensation guidance in ASU No. 2016-09 (Topic 718). First, under the new guidance, companies will be required to recognize the income tax effects of share-based awards in the income statement when the awards vest or are settled (i.e., additional paid-in capital (&#x201c;APIC&#x201d;) or APIC pools will be eliminated). In addition, the new guidance allows a withholding amount of awarded shares with a fair value up to the amount of tax owed using the maximum, instead of the minimum, statutory tax rate without triggering liability classification for the award. Lastly, the new guidance allows companies to elect whether to account for forfeitures of share-based payments by (1) recognizing forfeitures of awards as they occur or (2) estimating the number of awards expected to be forfeited and adjusting the estimate when it is likely to change, as is currently required. The new standard is effective for annual periods beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted. The Company has chosen to early adopt this guidance and chosen to account for forfeitures of share-based payments by recognizing forfeitures of awards as they occur. The result of adopting this guidance was immaterial to the Company&#x2019;s condensed consolidated financial statements.</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">&nbsp;</div><div style=" font-size: 10pt; text-align: justify; text-indent: 0.25in; margin: 0pt 0.05in 0pt 0">In February 2016, the FASB issued its new lease accounting guidance in ASU No. 2016-02, Leases (Topic 842).&nbsp;Under the new guidance, lessees will be required to recognize for all leases (with the exception of short-term leases) a lease liability, which is a lessee&#x2019;s obligation to make lease payments arising from a lease, measured on a discounted basis and a right-of-use asset, which is an asset that represents the lessee&#x2019;s right to use, or control the use of, a specified asset for the lease term. The new standard is effective for annual periods beginning after December 15, 2018, including interim periods within those fiscal years.&nbsp;The Company is currently evaluating the impact of the adoption of this ASU to the Company&#x2019;s consolidated financial statements and related disclosures.</div></div></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 regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting.  The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.</p></div>
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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 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 recognition for long-term construction-type contracts accounted for using the percentage-of-completion method. The disclosure would generally be expected to include the method or methods of measuring extent of progress toward completion. If the entity departs from using the percentage-of-completion method for a single contract or a group of contracts for which reasonably dependable estimates cannot be made, such a departure from the basic policy is disclosed. The disclosure may also describe the accounting for significant changes in estimate.</p></div>
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.</p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6738927440">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 3 - Property and Equipment (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2016</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_PropertyPlantAndEquipmentTextBlock', window );">Property, Plant and Equipment [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br />2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; border-bottom: Black 1pt solid; text-align: center">December 31, <br />2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Construction equipment </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">121,371</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">114,724</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Transportation equipment </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">18,924</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">18,056</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Buildings </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">12,771</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,860</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Office equipment </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,041</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,810</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Leasehold improvement </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">915</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">894</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Construction in progress </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">96</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,986</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Land </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,509</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">4,257</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Water rights </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">200</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">160,827</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">153,787</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less accumulated depreciation </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(90,464</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(80,312</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; text-indent: 9pt">Total property and equipment, net </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">70,363</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; 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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6907838688">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2016</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_TableTextBlock', window );"><strong>Notes Tables</strong></a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ScheduleOfComponentsOfAgreementObligationTableTextBlock', window );">Schedule of Components of Agreement Obligation [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">September 30,</div> <div style=" margin-top: 0; margin-bottom: 0">2016</div></td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">December 31,</div> <div style=" margin-top: 0; margin-bottom: 0">2015</div></td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: left; text-indent: 0in">Members&#x2019; interest subject to mandatory redemption </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">40,000</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">40,000</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; text-indent: 0in">Net accumulated earnings </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">6,466</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,438</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt">Total liability </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">46,466</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,438</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> </table></div><span></span>
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<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ScheduleOfChangesInNoncontrollingInterestsAndJointVenturesTableTextBlock', window );">Schedule of Changes in Noncontrolling Interests and Joint Ventures [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: left">Balance, beginning of period </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">(91</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">7,462</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">Net income attributable to noncontrolling interest included in equity </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,252</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,948</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt">Distributions to noncontrolling interest owners</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(3,402</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt">Balance, end of period </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">1,161</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">7,008</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </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 changes in noncontrolling interests and joint ventures.</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>Tabular disclosure of the components of an agreement obligation.</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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<DOCUMENT>
<TYPE>XML
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<DESCRIPTION>IDEA: XBRL DOCUMENT
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6739651680">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Construction Joint Ventures (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2016</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_TableTextBlock', window );"><strong>Notes Tables</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_ScheduleOfCondensedBalanceSheetTableTextBlock', window );">Condensed Balance Sheet [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">September 30, <br /> 2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">December 31, <br /> 2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Total combined:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 70%; font-size: 10pt; text-align: left; padding-left: 20pt">Current assets</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">26,893</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">17,312</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1.1pt; padding-left: 20pt">Less current liabilities</td> <td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(51,181</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1.1pt">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: right">(49,371</td> <td style="border-bottom: Black 1.1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.5pt; padding-left: 40pt">Net assets</td> <td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(24,288</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 2.5pt">&nbsp;</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: right">(32,059</td> <td style="border-bottom: Black 2.5pt double; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; padding-left: 20pt">Backlog</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">125,850</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">35,113</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Sterling&#x2019;s noncontrolling interest in backlog</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">60,947</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">11,748</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">Sterling&#x2019;s receivables from and equity in construction joint ventures</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">9,469</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">12,930</td> <td style="font-size: 10pt; text-align: left">&nbsp;</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_ScheduleOfCondensedIncomeStatementTableTextBlock', window );">Condensed Income Statement [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Total combined:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">15,520</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">9,458</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">44,074</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">50,450</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,925</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">808</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,838</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,866</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Sterling&#x2019;s portion of noncontrolling interest:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">6,103</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">3,437</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">17,567</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">19,986</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">519</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">357</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,370</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,021</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> </table></div><span></span>
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Variable Interest Entities (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</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_AccountsNotesLoansAndFinancingReceivablesByLegalEntityOfCounterpartyTypeAxis=strl_MyersAndSonsConstructionMember', window );">Myers and Sons Construction [Member]</a></td>
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<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TableTextBlock', window );"><strong>Notes Tables</strong></a></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_ScheduleOfCondensedIncomeStatementTableTextBlock', window );">Condensed Income Statement [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">Nine Months Ended</div> <div style=" margin-top: 0; margin-bottom: 0">September 30,</div></td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 40%; font-size: 10pt; text-align: left; text-indent: 0in">Revenues </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">50,739</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">43,444</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">121,649</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">134,035</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Operating income </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,720</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,216</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">4,894</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,885</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt; text-indent: -10pt">Net income attributable to Sterling common stockholders</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,357</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,108</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,440</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,941</td> <td style="font-size: 10pt; text-align: left">&nbsp;</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_ScheduleOfVariableInterestEntitiesTextBlock', window );">Schedule of Variable Interest Entities [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, <br />2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, <br />2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Assets:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify">Current assets: </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; padding-left: 10pt">Cash and cash equivalents </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">2,074</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">3,226</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Contracts receivable, including retainage </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">25,107</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,941</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current assets </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,052</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">15,887</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current assets </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">37,233</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">39,054</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Property and equipment, net </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,279</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">10,080</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Goodwill </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">1,501</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total assets </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">49,013</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">50,635</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify">Liabilities:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Current liabilities: </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 10pt">Accounts payable </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">25,907</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">20,596</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other current liabilities </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">11,541</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">10,986</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-left: 20pt">Total current liabilities </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">37,448</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">31,582</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify">Long-term liabilities:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; padding-left: 10pt">Other long-term liabilities </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">425</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,370</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; padding-left: 20pt">Total liabilities </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">37,873</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">34,952</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</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_ScheduleOfCondensedIncomeStatementTableTextBlock', window );">Condensed Income Statement [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td nowrap="nowrap" style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1.1pt">&nbsp;</td> <td nowrap="nowrap" colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1.1pt solid">2015</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Total combined:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 48%; font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">15,520</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">9,458</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">44,074</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">50,450</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,925</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">808</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">3,838</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,866</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Sterling&#x2019;s portion of noncontrolling interest:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Revenues </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">6,103</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">3,437</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">17,567</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">19,986</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 22.5pt">Income before tax </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">519</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">357</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">1,370</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">2,021</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </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 condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations.</p></div>
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<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock</td>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6620022160">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Net Income (Loss) Per Share Attributable to Sterling Common Stockholders (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
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<tr><th class="th"><div>Sep. 30, 2016</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_TableTextBlock', window );"><strong>Notes Tables</strong></a></td>
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<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Three Months Ended <br />September 30,</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Nine Months Ended <br />September 30,</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">Numerator:</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 48%; font-size: 10pt; text-align: left; padding-left: 20pt; text-indent: -10pt">Net income (loss) attributable to Sterling common stockholders </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">2,415</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">256</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">(2,890</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 10%; font-size: 10pt; text-align: right">(19,278</td> <td style="width: 1%; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left">Denominator:</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-left: 10pt">Weighted average common shares outstanding &#x2014; basic </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">25,003</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,628</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">23,915</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">19,269</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 1pt; padding-left: 20pt; text-indent: -10pt">Shares for dilutive unvested stock </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">362</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">-</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 20pt; text-indent: -10pt">Weighted average common shares outstanding and incremental shares assumed repurchased&#x2014; diluted </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">25,365</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,628</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">23,915</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">19,269</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; padding-bottom: 2.25pt; padding-left: 10pt; text-indent: -10pt">Basic and diluted income (loss) per share attributable to Sterling common stockholders </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.10</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">0.01</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(0.12</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">(1.00</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">)</td> </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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6903750080">
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<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Debt (Tables)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2016</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_TableTextBlock', window );"><strong>Notes Tables</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_ScheduleOfDebtInstrumentsTextBlock', window );">Schedule of Long-term Debt Instruments [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">September 30,</div> <div style=" margin-top: 0; margin-bottom: 0">2016</div></td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid"><div style=" margin-top: 0; margin-bottom: 0">December 31,</div> <div style=" margin-top: 0; margin-bottom: 0">2015</div></td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 70%; font-size: 10pt; text-align: justify; text-indent: 0in">Equipment-based Facility </td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">9,553</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt">&nbsp;</td> <td style="width: 1%; font-size: 10pt; text-align: left">$</td> <td style="width: 12%; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less deferred loan costs </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(891</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(1,119</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in; padding-left: 10pt">Equipment-based Facility, net </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">8,662</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">16,838</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt">Notes payable for transportation and construction equipment and other </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">2,943</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">3,342</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">11,605</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">20,180</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; text-indent: 0in">Current maturities of long-term debt </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,009</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; text-align: right">5,192</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Less current deferred loan costs </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(356</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(336</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in; padding-left: 10pt">Less current maturities of long-term debt, net </td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,653</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> <td style="font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">(4,856</td> <td style="border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">)</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total long-term debt </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">6,952</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">15,324</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> </table></div><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_ScheduleOfDebtTableTextBlock', window );">Schedule of Debt [Table Text Block]</a></td>
<td class="text"><div style="display: inline; font-family: times new roman; font-size: 10pt"><table cellpadding="0" cellspacing="0" style="border-collapse: collapse;; width: 700px;"> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: justify">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">September 30, 2016</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="7" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">December 31, 2015</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Carrying Value</td> <td style="font-size: 10pt; font-weight: bold; padding-bottom: 1pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; font-weight: bold; text-align: center; border-bottom: Black 1pt solid">Fair Value</td> </tr> <tr style="vertical-align: bottom"> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td colspan="3" style="font-size: 10pt; text-align: right">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: left; text-indent: 0in">Revolving Loan </td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt">&nbsp;</td> <td style="font-size: 10pt; text-align: left">$</td> <td style="font-size: 10pt; text-align: right">-</td> <td style="font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 48%; font-size: 10pt; text-align: justify; padding-bottom: 1pt; text-indent: 0in">Term Loan </td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,553</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">9,527</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 1%; font-size: 10pt; padding-bottom: 1pt">&nbsp;</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> <td style="width: 10%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: right">17,957</td> <td style="width: 1%; border-bottom: Black 1pt solid; font-size: 10pt; text-align: left">&nbsp;</td> </tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-size: 10pt; text-align: justify; padding-bottom: 2.25pt; text-indent: 0in">Total Equipment-based Facility debt </td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,553</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">9,527</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> <td style="font-size: 10pt; padding-bottom: 2.25pt">&nbsp;</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">$</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: right">17,957</td> <td style="border-bottom: Black 2.25pt double; font-size: 10pt; text-align: left">&nbsp;</td> </tr> </table></div><span></span>
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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>Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21475-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 470<br> -Section 50<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=6479336&amp;loc=d3e64711-112823<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(e),(f))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 55<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=64930739&amp;loc=d3e28878-108400<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 8<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21538-112644<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21506-112644<br><br>Reference 8: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 1A<br> -URI http://asc.fasb.org/extlink&amp;oid=64930785&amp;loc=d3e28541-108399<br><br>Reference 9: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=64930785&amp;loc=d3e28551-108399<br><br>Reference 10: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 7<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21521-112644<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">
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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>Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
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<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_TableTextBlock</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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</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>37
<FILENAME>R26.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748187104">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 1 - Business Summary and Significant Accounting Policies (Details Textual)<br> $ in Millions</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th">
<div>Sep. 30, 2016 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2015 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2016 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Sep. 30, 2015 </div>
<div>USD ($)</div>
</th>
<th class="th">
<div>Dec. 31, 2015 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RangeAxis=us-gaap_MinimumMember', window );">Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_OwnershipInterestInJointVenture', window );">Ownership Interest in Joint Venture</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_RevenueRecognitionPercentageOfCompletionRange', window );">Revenue Recognition Percentage of Completion Range</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_WarrantyTerm', window );">Warranty Term</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</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_us-gaap_RangeAxis=us-gaap_MaximumMember', window );">Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_RevenueRecognitionPercentageOfCompletionRange', window );">Revenue Recognition Percentage of Completion Range</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_strl_WarrantyTerm', window );">Warranty Term</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">2 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_IncomeStatementLocationAxis=us-gaap_OperatingIncomeLossMember', window );">Operating Income (Loss) [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_EstimatedConstructionGrossProfitLossBeforeTax', window );">Estimated Construction Gross (Loss) Profit, Before Tax</a></td>
<td class="num">$ (0.6)<span></span>
</td>
<td class="num">$ (1.1)<span></span>
</td>
<td class="num">$ (1.1)<span></span>
</td>
<td class="num">$ (12.3)<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_StatementGeographicalAxis=strl_TexasMember', window );">Texas [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_NumberOfProjectsWithClaims', window );">Number of Projects with Claims</a></td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="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_BalanceSheetLocationAxis=strl_CostsAndEstimatedEarningsInExcessOfBillingsMember', window );">Costs and Estimated Earnings in Excess of Billings [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_UnapprovedChangeOrdersAmount', window );">Unapproved Change Orders, Amount</a></td>
<td class="nump">$ 2.4<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2.4<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 1.6<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ContractsReceivableClaimsAndUncertainAmounts', window );">Contracts Receivable, Claims and Uncertain Amounts</a></td>
<td class="nump">9.1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">9.1<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 5.2<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ContractsReceivableUnpaidProjectContractPrice', window );">Contracts Receivable, Unpaid Project Contract Price</a></td>
<td class="nump">3.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3.9<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_strl_OwnershipInterestInJointVenture', window );">Ownership Interest in Joint Venture</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ContractsReceivableUnpaidProjectContractPrice', window );">Contracts Receivable, Unpaid Project Contract Price</a></td>
<td class="nump">$ 3.9<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3.9<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_strl_ContractsReceivableUnpaidProjectContractPrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of unpaid project contract price that the Company is entitled to.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_ContractsReceivableUnpaidProjectContractPrice</td>
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<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
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<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
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<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_strl_EstimatedConstructionGrossProfitLossBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 net estimated gross profit (loss) before tax.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_EstimatedConstructionGrossProfitLossBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_NumberOfProjectsWithClaims">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 number of projects in process of negotiating a claim.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_NumberOfProjectsWithClaims</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_strl_OwnershipInterestInJointVenture">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 ownership interest in joint venture.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_OwnershipInterestInJointVenture</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_strl_RevenueRecognitionPercentageOfCompletionRange">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 length of time the Company's contracts generally take to complete.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_RevenueRecognitionPercentageOfCompletionRange</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_strl_WarrantyTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 warranty 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;">strl_WarrantyTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_ContractsReceivableClaimsAndUncertainAmounts">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of billed or unbilled claims or other similar items subject to uncertainty concerning their determination or ultimate realization under long-term contracts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.3(c)(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_ContractsReceivableClaimsAndUncertainAmounts</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_UnapprovedChangeOrdersAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 costs incurred on unapproved change orders when it is probable that the cost will be recovered through a change in the contract price.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(3)(c)(3))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 910<br> -SubTopic 310<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=68065756&amp;loc=d3e49324-109356<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 910<br> -SubTopic 340<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=68053980&amp;loc=d3e50000-109363<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_UnapprovedChangeOrdersAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_RangeAxis=us-gaap_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;">us-gaap_RangeAxis=us-gaap_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_us-gaap_RangeAxis=us-gaap_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;">us-gaap_RangeAxis=us-gaap_MaximumMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingIncomeLossMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_OperatingIncomeLossMember</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_StatementGeographicalAxis=strl_TexasMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_StatementGeographicalAxis=strl_TexasMember</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_BalanceSheetLocationAxis=strl_CostsAndEstimatedEarningsInExcessOfBillingsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_BalanceSheetLocationAxis=strl_CostsAndEstimatedEarningsInExcessOfBillingsMember</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>38
<FILENAME>R27.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6908660400">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 2 - Cash and Cash Equivalents and Restricted Cash (Details Textual) - USD ($)<br> $ in Millions</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MajorityOwnedJointVenturesMember', window );">Majority Owned Joint Ventures [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalents', window );">Restricted Cash and Cash Equivalents</a></td>
<td class="nump">$ 14.1<span></span>
</td>
<td class="nump">$ 14.1<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_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember', window );">Other Assets [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalents', window );">Restricted Cash and Cash Equivalents</a></td>
<td class="nump">3.0<span></span>
</td>
<td class="nump">3.0<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember', window );">Other Current Assets [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RestrictedCashAndCashEquivalents', window );">Restricted Cash and Cash Equivalents</a></td>
<td class="nump">$ 2.0<span></span>
</td>
<td class="nump">$ 2.0<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_RestrictedCashAndCashEquivalents">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.1)<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_RestrictedCashAndCashEquivalents</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MajorityOwnedJointVenturesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MajorityOwnedJointVenturesMember</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_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember</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_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember</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>39
<FILENAME>R28.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6737372000">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 3 - Property and Equipment - Property and Equipment (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=strl_ConstructionEquipmentMember', window );">Construction Equipment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">$ 121,371<span></span>
</td>
<td class="nump">$ 114,724<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_TransportationEquipmentMember', window );">Transportation Equipment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">18,924<span></span>
</td>
<td class="nump">18,056<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember', window );">Building [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">12,771<span></span>
</td>
<td class="nump">10,860<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_OfficeEquipmentMember', window );">Office Equipment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">3,041<span></span>
</td>
<td class="nump">2,810<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LeaseholdImprovementsMember', window );">Leasehold Improvements [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">915<span></span>
</td>
<td class="nump">894<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ConstructionInProgressMember', window );">Construction in Progress [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">96<span></span>
</td>
<td class="nump">1,986<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember', window );">Land [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">3,509<span></span>
</td>
<td class="nump">4,257<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=strl_WaterRightsMember', window );">Water Rights [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">200<span></span>
</td>
<td class="nump">200<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_PropertyPlantAndEquipmentGross', window );">Property, plant and equipment, gross</a></td>
<td class="nump">160,827<span></span>
</td>
<td class="nump">153,787<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment', window );">Less accumulated depreciation</a></td>
<td class="num">(90,464)<span></span>
</td>
<td class="num">(80,312)<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_PropertyPlantAndEquipmentNet', window );">Total property and equipment, net</a></td>
<td class="nump">$ 70,363<span></span>
</td>
<td class="nump">$ 73,475<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.14)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.13)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentByTypeAxis=strl_ConstructionEquipmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=strl_ConstructionEquipmentMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_TransportationEquipmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_TransportationEquipmentMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_BuildingMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_OfficeEquipmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_OfficeEquipmentMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LeaseholdImprovementsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LeaseholdImprovementsMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ConstructionInProgressMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_ConstructionInProgressMember</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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=us-gaap_LandMember</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_PropertyPlantAndEquipmentByTypeAxis=strl_WaterRightsMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_PropertyPlantAndEquipmentByTypeAxis=strl_WaterRightsMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
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<SEQUENCE>40
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<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6896938880">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 4 - Income Taxes (Details Textual) - USD ($)<br></strong></div></th>
<th class="th" colspan="1">3 Months Ended</th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes', window );">Increase (Decrease) in Deferred Income Taxes</a></td>
<td class="nump">$ 0<span></span>
</td>
<td class="nump">$ 0<span></span>
</td>
</tr>
</table>
<div style="display: none;"><table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncreaseDecreaseInDeferredIncomeTaxes">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 account that represents the temporary difference that results from Income or Loss that is recognized for accounting purposes but not for tax purposes and vice versa.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_IncreaseDecreaseInDeferredIncomeTaxes</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6890673120">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 5 - Commitments and Contingencies (Details Textual)<br> $ in Millions</strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th">
<div>Sep. 30, 2016 </div>
<div>USD ($)</div>
</th></tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=strl_LegalDisputeMember', window );">Legal Dispute [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LossContingencyAccrualProvision', window );">Loss Contingency Accrual, Provision</a></td>
<td class="nump">$ 1<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_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember', window );">Other Current Liabilities [Member] | Costs of Revenue [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_SettlementOffer', window );">Settlement Offer</a></td>
<td class="nump">$ 1<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_SettlementOffer">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 offered for the settlement of a case.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_SettlementOffer</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_LossContingencyAccrualProvision">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 450<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=25496072&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_LossContingencyAccrualProvision</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_dei_LegalEntityAxis=strl_LegalDisputeMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=strl_LegalDisputeMember</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_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember</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_IncomeStatementLocationAxis=strl_CostsOfRevenueMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=strl_CostsOfRevenueMember</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>42
<FILENAME>R31.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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							} else { e.nextSibling.style.display='none'; }
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</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6735209584">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests (Details Textual) - USD ($)<br> $ in Millions</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=strl_CEOOfRHBMember', window );">CEO of RHB [Member] | Upon Death [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired', window );">Business Acquisition, Percentage of Voting Interests Acquired</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_TitleOfIndividualAxis=strl_MyersMember', window );">Myers [Member] | Upon Death [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired', window );">Business Acquisition, Percentage of Voting Interests Acquired</a></td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">50.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromSubsidiariesBeforeTax', window );">Income (Loss) from Subsidiaries, before Tax</a></td>
<td class="nump">$ 3.4<span></span>
</td>
<td class="nump">$ 0.8<span></span>
</td>
<td class="nump">$ 7.3<span></span>
</td>
<td class="nump">$ 1.5<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_BusinessAcquisitionPercentageOfVotingInterestsAcquired">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of voting equity interests acquired at the acquisition date in the business combination.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 805<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)<br> -URI http://asc.fasb.org/extlink&amp;oid=65885119&amp;loc=d3e1392-128463<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromSubsidiariesBeforeTax">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount before tax of income (loss) of subsidiary attributable to the parent entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromSubsidiariesBeforeTax</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_TitleOfIndividualAxis=strl_CEOOfRHBMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=strl_CEOOfRHBMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_StatementScenarioAxis=strl_UponDeathMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementScenarioAxis=strl_UponDeathMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_TitleOfIndividualAxis=strl_MyersMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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=strl_MyersMember</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>43
<FILENAME>R32.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
							}</script>
</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6883896288">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests - Components of Noncontrolling Interest Subject to Mandatory Redemption (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_MembersInterestSubjectToMandatoryRedemption', window );">Members&#8217; interest subject to mandatory redemption</a></td>
<td class="nump">$ 40,000<span></span>
</td>
<td class="nump">$ 40,000<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_strl_UndistributedEarningsOfDomesticSubsidiariesNet', window );">Net accumulated earnings</a></td>
<td class="nump">6,466<span></span>
</td>
<td class="nump">10,438<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_strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings', window );">Total liability</a></td>
<td class="nump">$ 46,466<span></span>
</td>
<td class="nump">$ 50,438<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_MembersInterestSubjectToMandatoryRedemption">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 Member's interest subject to mandatory redemption.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_MembersInterestSubjectToMandatoryRedemption</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 element that represents the member's interest subject to mandatory redemption and undistributed earnings.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_MembersInterestSubjectToMandatoryRedemptionAndUndistributedEarnings</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_UndistributedEarningsOfDomesticSubsidiariesNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 amount of undistributed earnings (distributed earnings) of domestic subsidiaries or domestic joint ventures intended to be permanent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_UndistributedEarningsOfDomesticSubsidiariesNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>44
<FILENAME>R33.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6737754096">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 6 - Subsidiaries and Joint Ventures with Noncontrolling Owners' Interests - Changes in Noncontrolling Owners' Interests in Subsidiaries and Consolidated Joint Ventures (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=us-gaap_SubsidiariesMember', window );">Subsidiaries [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterest', window );">Balance, beginning of period</a></td>
<td class="num">$ (91)<span></span>
</td>
<td class="nump">$ 7,462<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest', window );">Net income attributable to noncontrolling interest included in equity</a></td>
<td class="nump">1,252<span></span>
</td>
<td class="nump">2,948<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders', window );">Distributions to noncontrolling interest owners</a></td>
<td class="text"> <span></span>
</td>
<td class="num">(3,402)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterest', window );">Balance, end of period</a></td>
<td class="nump">1,161<span></span>
</td>
<td class="nump">$ 7,008<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_MinorityInterest', window );">Balance, beginning of period</a></td>
<td class="num">(91)<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_MinorityInterest', window );">Balance, end of period</a></td>
<td class="nump">$ 1,161<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_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 21<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4613674-111683<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 45<br> -Paragraph 20<br> -URI http://asc.fasb.org/extlink&amp;oid=68079674&amp;loc=SL4569643-111683<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 55<br> -Paragraph 4K<br> -URI http://asc.fasb.org/extlink&amp;oid=65897068&amp;loc=SL4591552-111686<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_MinorityInterest">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(24))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.31)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_MinorityInterest</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 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_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_dei_LegalEntityAxis=us-gaap_SubsidiariesMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=us-gaap_SubsidiariesMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>45
<FILENAME>R34.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6631731200">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 7 - Construction Joint Ventures (Details Textual)<br> $ in Millions</strong></div></th>
<th class="th">
<div>Sep. 30, 2016 </div>
<div>USD ($)</div>
</th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=strl_GraniteConstructionCorporationMember', window );">Granite Construction Corporation [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EquityMethodInvestmentOwnershipPercentage', window );">Equity Method Investment, Ownership Percentage</a></td>
<td class="nump">49.00%<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures', window );">Construction Backlog Attributable to Project Performed by Joint Ventures</a></td>
<td class="nump">$ 61<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of construction backlog attributable to project performed by joint ventures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_ConstructionBacklogAttributableToProjectPerformedByJointVentures</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_EquityMethodInvestmentOwnershipPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 323<br> -SubTopic 10<br> -Section 50<br> -Paragraph 3<br> -Subparagraph (a)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=66011266&amp;loc=d3e33918-111571<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EquityMethodInvestmentOwnershipPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=strl_GraniteConstructionCorporationMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=strl_GraniteConstructionCorporationMember</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>46
<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">
							function toggleNextSibling (e) {
							if (e.nextSibling.style.display=='none') {
							e.nextSibling.style.display='block';
							} else { e.nextSibling.style.display='none'; }
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</head>
<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6908560848">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 7 - Construction Joint Ventures - Construction Joint Ventures, Partner Share (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember', window );">Corporate Joint Venture [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">$ 26,893<span></span>
</td>
<td class="nump">$ 17,312<span></span>
</td>
</tr>
<tr class="re">
<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 );">Less current liabilities</a></td>
<td class="num">(51,181)<span></span>
</td>
<td class="num">(49,371)<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_AssetsNet', window );">Net assets</a></td>
<td class="num">(24,288)<span></span>
</td>
<td class="num">(32,059)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_Backlog', window );">Backlog</a></td>
<td class="nump">125,850<span></span>
</td>
<td class="nump">35,113<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_NoncontrollingInterestInBacklog', window );">Sterling&#8217;s noncontrolling interest in backlog</a></td>
<td class="nump">60,947<span></span>
</td>
<td class="nump">11,748<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ReceivablesFromAndEquityInConstructionJointVenture', window );">Sterling&#8217;s receivables from and equity in construction joint ventures</a></td>
<td class="nump">9,469<span></span>
</td>
<td class="nump">12,930<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">200,064<span></span>
</td>
<td class="nump">134,921<span></span>
</td>
</tr>
<tr class="re">
<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 );">Less current liabilities</a></td>
<td class="num">(159,430)<span></span>
</td>
<td class="num">(104,311)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_ReceivablesFromAndEquityInConstructionJointVenture', window );">Sterling&#8217;s receivables from and equity in construction joint ventures</a></td>
<td class="nump">$ 9,469<span></span>
</td>
<td class="nump">$ 12,930<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_Backlog">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the amount of backlog 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>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_Backlog</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_NoncontrollingInterestInBacklog">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the amount of non-controlling interest in backlog 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>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_NoncontrollingInterestInBacklog</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_strl_ReceivablesFromAndEquityInConstructionJointVenture">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 minority-owned entities in which the reporting entity shares joint control with another party or group, due within 1 year (or 1 business cycle). Also, includes the entity's equity in minority-owned joint ventures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_ReceivablesFromAndEquityInConstructionJointVenture</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6801-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&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_AssetsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of net assets (liabilities).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 225<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(6))<br> -URI http://asc.fasb.org/extlink&amp;oid=6488393&amp;loc=d3e606914-122999<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 210<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.6-05(4))<br> -URI http://asc.fasb.org/extlink&amp;oid=6488278&amp;loc=d3e604008-122996<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 205<br> -SubTopic 30<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=64830158&amp;loc=SL35686385-199418<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 946<br> -SubTopic 225<br> -Section S99<br> -Paragraph 3<br> -Subparagraph (SX 210.6-09(7))<br> -URI http://asc.fasb.org/extlink&amp;oid=6488393&amp;loc=d3e606914-122999<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember</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>R36.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
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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;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748162912">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 7 - Construction Joint Ventures - Construction Joint Ventures, Partner Income (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember', window );">Corporate Joint Venture [Member] | Noncontrolling Interest [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ConstructionRevenue', window );">Revenues</a></td>
<td class="nump">$ 6,103<span></span>
</td>
<td class="nump">$ 3,437<span></span>
</td>
<td class="nump">$ 17,567<span></span>
</td>
<td class="nump">$ 19,986<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable', window );">Income before tax</a></td>
<td class="nump">519<span></span>
</td>
<td class="nump">357<span></span>
</td>
<td class="nump">1,370<span></span>
</td>
<td class="nump">2,021<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember', window );">Corporate Joint Venture [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenues</a></td>
<td class="nump">15,520<span></span>
</td>
<td class="nump">9,458<span></span>
</td>
<td class="nump">44,074<span></span>
</td>
<td class="nump">50,450<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments', window );">Income before tax</a></td>
<td class="nump">1,925<span></span>
</td>
<td class="nump">808<span></span>
</td>
<td class="nump">3,838<span></span>
</td>
<td class="nump">5,866<span></span>
</td>
</tr>
<tr class="re">
<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 );">Revenues</a></td>
<td class="nump">$ 205,629<span></span>
</td>
<td class="nump">$ 176,000<span></span>
</td>
<td class="nump">$ 521,778<span></span>
</td>
<td class="nump">$ 471,107<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_ConstructionRevenue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 revenue from building and real estate development, which may include improvements (such as drainage, utilities, grading and subdividing) to a parcel of land, and general contracting services during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1(e))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ConstructionRevenue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 235<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.4-08.(h)(1)(i))<br> -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after tax of income (loss) attributable to nonredeemable noncontrolling shareholder, unit holder, partner, or other equity holder of a joint venture.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.19)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">dei_LegalEntityAxis=us-gaap_CorporateJointVentureMember</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_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StatementEquityComponentsAxis=us-gaap_NoncontrollingInterestMember</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>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>48
<FILENAME>R37.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6738833264">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Variable Interest Entities (Details Textual)<br></strong></div></th>
<th class="th" colspan="1">9 Months Ended</th>
</tr>
<tr><th class="th"><div>Sep. 30, 2016</div></th></tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MyersMember', window );">Myers [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntityOwnershipPercentage', window );">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</a></td>
<td class="nump">50.00%<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_VariableInterestEntityOwnershipPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 810<br> -SubTopic 10<br> -Section 50<br> -Paragraph 5A<br> -Subparagraph (d)<br> -URI http://asc.fasb.org/extlink&amp;oid=64801991&amp;loc=SL6759159-111685<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_VariableInterestEntityOwnershipPercentage</td>
</tr>
<tr>
<td style="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_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MyersMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableInterestEntitiesByClassificationOfEntityAxis=strl_MyersMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>49
<FILENAME>R38.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6735168048">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 8 - Variable Interest Entities - Consolidated Balance Sheet - Myers (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2014</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember', window );">Variable Interest Entity, Primary Beneficiary [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AssetsCurrentAbstract', window );"><strong>Current 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>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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">$ 2,074<span></span>
</td>
<td class="nump">$ 3,226<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_ReceivablesLongTermContractsOrPrograms', window );">Contracts receivable, including retainage</a></td>
<td class="nump">25,107<span></span>
</td>
<td class="nump">19,941<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_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">10,052<span></span>
</td>
<td class="nump">15,887<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_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">37,233<span></span>
</td>
<td class="nump">39,054<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_PropertyPlantAndEquipmentNet', window );">Property and equipment, net</a></td>
<td class="nump">10,279<span></span>
</td>
<td class="nump">10,080<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">1,501<span></span>
</td>
<td class="nump">1,501<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_Assets', window );">Total assets</a></td>
<td class="nump">49,013<span></span>
</td>
<td class="nump">50,635<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_LiabilitiesCurrentAbstract', window );"><strong>Current 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>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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">25,907<span></span>
</td>
<td class="nump">20,596<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_OtherLiabilitiesCurrent', window );">Other current liabilities</a></td>
<td class="nump">11,541<span></span>
</td>
<td class="nump">10,986<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_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">37,448<span></span>
</td>
<td class="nump">31,582<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_LiabilitiesNoncurrentAbstract', window );"><strong>Long-term 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>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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">425<span></span>
</td>
<td class="nump">3,370<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_Liabilities', window );">Total liabilities</a></td>
<td class="nump">37,873<span></span>
</td>
<td class="nump">34,952<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_CashAndCashEquivalentsAtCarryingValue', window );">Cash and cash equivalents</a></td>
<td class="nump">43,021<span></span>
</td>
<td class="nump">4,426<span></span>
</td>
<td class="nump">$ 11,488<span></span>
</td>
<td class="nump">$ 22,843<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ReceivablesLongTermContractsOrPrograms', window );">Contracts receivable, including retainage</a></td>
<td class="nump">105,415<span></span>
</td>
<td class="nump">82,112<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_OtherAssetsCurrent', window );">Other current assets</a></td>
<td class="nump">6,170<span></span>
</td>
<td class="nump">6,013<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_AssetsCurrent', window );">Total current assets</a></td>
<td class="nump">200,064<span></span>
</td>
<td class="nump">134,921<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_PropertyPlantAndEquipmentNet', window );">Property and equipment, net</a></td>
<td class="nump">70,363<span></span>
</td>
<td class="nump">73,475<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Goodwill', window );">Goodwill</a></td>
<td class="nump">54,820<span></span>
</td>
<td class="nump">54,820<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_Assets', window );">Total assets</a></td>
<td class="nump">328,215<span></span>
</td>
<td class="nump">266,165<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_AccountsPayableCurrent', window );">Accounts payable</a></td>
<td class="nump">76,861<span></span>
</td>
<td class="nump">58,959<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_LiabilitiesCurrent', window );">Total current liabilities</a></td>
<td class="nump">$ 159,430<span></span>
</td>
<td class="nump">$ 104,311<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_AccountsPayableCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(a))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AccountsPayableCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_Assets">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(12))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(11))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Assets</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.9)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6801-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AssetsCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AssetsCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_CashAndCashEquivalentsAtCarryingValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash<br> -URI http://asc.fasb.org/extlink&amp;oid=6506951<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6676-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 4<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3044-108585<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Cash Equivalents<br> -URI http://asc.fasb.org/extlink&amp;oid=6507016<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 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_Goodwill">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 350<br> -SubTopic 20<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=35741047&amp;loc=d3e13816-109267<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<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=6388280&amp;loc=d3e13770-109266<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<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=64834752&amp;loc=SL49117168-202975<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_Liabilities">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19-26)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Liabilities</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.21)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesCurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- References</a><div><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LiabilitiesCurrentAbstract</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:stringItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LiabilitiesNoncurrentAbstract">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_LiabilitiesNoncurrentAbstract</td>
</tr>
<tr>
<td style="padding-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_OtherAssetsCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 assets classified as other.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<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_OtherAssetsCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_OtherLiabilitiesCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 within one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 5<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6904-107765<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section 45<br> -Paragraph 6<br> -URI http://asc.fasb.org/extlink&amp;oid=28358313&amp;loc=d3e6911-107765<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_OtherLiabilitiesNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.24)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_OtherLiabilitiesNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_PropertyPlantAndEquipmentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(13))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(14))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(8))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 360<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6391035&amp;loc=d3e2868-110229<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_PropertyPlantAndEquipmentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ReceivablesLongTermContractsOrPrograms">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.3(c))<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_ReceivablesLongTermContractsOrPrograms</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
<SEQUENCE>50
<FILENAME>R39.htm
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6737496736">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 8 - Variable Interest Entities - Consolidated Statements of Operations - Myers (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember', window );">Variable Interest Entity, Primary Beneficiary [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_Revenues', window );">Revenues</a></td>
<td class="nump">$ 50,739<span></span>
</td>
<td class="nump">$ 43,444<span></span>
</td>
<td class="nump">$ 121,649<span></span>
</td>
<td class="nump">$ 134,035<span></span>
</td>
</tr>
<tr class="re">
<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">2,720<span></span>
</td>
<td class="nump">2,216<span></span>
</td>
<td class="nump">4,894<span></span>
</td>
<td class="nump">5,885<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic', window );">Net income attributable to Sterling common stockholders</a></td>
<td class="nump">1,357<span></span>
</td>
<td class="nump">1,108<span></span>
</td>
<td class="nump">2,440<span></span>
</td>
<td class="nump">2,941<span></span>
</td>
</tr>
<tr class="re">
<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 );">Revenues</a></td>
<td class="nump">205,629<span></span>
</td>
<td class="nump">176,000<span></span>
</td>
<td class="nump">521,778<span></span>
</td>
<td class="nump">471,107<span></span>
</td>
</tr>
<tr class="ro">
<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">$ 3,672<span></span>
</td>
<td class="nump">$ 2,381<span></span>
</td>
<td class="nump">$ 587<span></span>
</td>
<td class="num">$ (14,459)<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_NetIncomeLossAvailableToCommonStockholdersBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 11<br> -URI http://asc.fasb.org/extlink&amp;oid=64863997&amp;loc=d3e1377-109256<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_NetIncomeLossAvailableToCommonStockholdersBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_OperatingIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The net result for the period of deducting operating expenses from operating revenues.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><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_Revenues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.1)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_Revenues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityPrimaryBeneficiaryMember</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></div>
</div></td></tr>
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<DOCUMENT>
<TYPE>XML
<SEQUENCE>51
<FILENAME>R40.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;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6735351152">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 9 - Stockholders' Equity (Details Textual) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="1"></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>May 09, 2016</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SubsidiarySaleOfStockAxis=strl_DADavidsonAndCoMember', window );">D.A. Davidson and Co. [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_StockIssuedDuringPeriodSharesNewIssues', window );">Stock Issued During Period, Shares, New Issues</a></td>
<td class="nump">5,175,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_SharePrice', window );">Share Price</a></td>
<td class="nump">$ 4<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_SharePriceNet', window );">Share Price, Net</a></td>
<td class="nump">$ 3.77<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_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from Issuance of Common Stock</a></td>
<td class="nump">$ 19,100<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember', window );">Restricted Stock [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<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 );">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period</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="nump">79,240<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue', window );">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value</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="nump">$ 4.36<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_ProceedsFromIssuanceOfCommonStock', window );">Proceeds from Issuance of Common Stock</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 19,142<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_AllocatedShareBasedCompensationExpense', window );">Allocated Share-based Compensation Expense</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 400<span></span>
</td>
<td class="nump">$ 800<span></span>
</td>
<td class="nump">1,200<span></span>
</td>
<td class="nump">$ 1,300<span></span>
</td>
</tr>
<tr class="re">
<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 );">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,300<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition</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">1 year 182 days<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber', window );">Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">800,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">800,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_SharePriceNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company, net of underwriting discounts.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_SharePriceNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_AllocatedShareBasedCompensationExpense">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SAB Topic 14.F)<br> -URI http://asc.fasb.org/extlink&amp;oid=27013229&amp;loc=d3e301413-122809<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5047-113901<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (h)(1)(i)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_AllocatedShareBasedCompensationExpense</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Unrecognized cost of unvested share-based compensation awards.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Weighted average period over which 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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (i)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&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_ProceedsFromIssuanceOfCommonStock">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 additional capital contribution to the entity.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 14<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&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_ProceedsFromIssuanceOfCommonStock</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(iii)(1)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>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_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 718<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -Subparagraph (c)(2)(i)-(ii)<br> -URI http://asc.fasb.org/extlink&amp;oid=6415400&amp;loc=d3e5070-113901<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SharePrice">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Price of a single share of a number of saleable stocks of a company.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SharePrice</td>
</tr>
<tr>
<td style="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_StockIssuedDuringPeriodSharesNewIssues">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of new stock issued during the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(29))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section 50<br> -Paragraph 2<br> -URI http://asc.fasb.org/extlink&amp;oid=6928386&amp;loc=d3e21463-112644<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(28))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 505<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.3-04)<br> -URI http://asc.fasb.org/extlink&amp;oid=27012166&amp;loc=d3e187085-122770<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_StockIssuedDuringPeriodSharesNewIssues</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_SubsidiarySaleOfStockAxis=strl_DADavidsonAndCoMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_SubsidiarySaleOfStockAxis=strl_DADavidsonAndCoMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.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>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
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<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6900551456">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Net Income (Loss) Per Share Attributable to Sterling Common Stockholders (Details Textual) - shares<br></strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount', window );">Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount</a></td>
<td class="nump">0<span></span>
</td>
<td class="nump">200,000<span></span>
</td>
<td class="nump">300,000<span></span>
</td>
<td class="nump">400,000<span></span>
</td>
</tr>
</table>
<div style="display: none;"><table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Antidilution<br> -URI http://asc.fasb.org/extlink&amp;oid=6505113<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Diluted Earnings Per Share<br> -URI http://asc.fasb.org/extlink&amp;oid=6510752<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Contingent Stock Agreement<br> -URI http://asc.fasb.org/extlink&amp;oid=6508534<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 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></div>
</body>
</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>XML
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<TEXT>
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="report.css">
<script type="text/javascript" src="Show.js">/* Do Not Remove This Comment */</script><script type="text/javascript">
							function toggleNextSibling (e) {
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<body>
<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6895204416">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 10 - Net Income (Loss) Per Share Attributable to Sterling Common Stockholders - Basic Net Income (Loss) Per Share Attributable to Sterling Common Stockholders (Details) - USD ($)<br> $ / shares in Units, $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NetIncomeLoss', window );">Net loss attributable to Sterling common stockholders</a></td>
<td class="nump">$ 2,415<span></span>
</td>
<td class="nump">$ 256<span></span>
</td>
<td class="num">$ (2,890)<span></span>
</td>
<td class="num">$ (19,278)<span></span>
</td>
</tr>
<tr class="ro">
<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">25,002,964<span></span>
</td>
<td class="nump">19,627,674<span></span>
</td>
<td class="nump">23,914,688<span></span>
</td>
<td class="nump">19,269,123<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding', window );">Diluted (in shares)</a></td>
<td class="nump">25,364,881<span></span>
</td>
<td class="nump">19,627,674<span></span>
</td>
<td class="nump">23,914,688<span></span>
</td>
<td class="nump">19,269,123<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_EarningsPerShareBasicAndDiluted', window );">Basic and diluted (in dollars per share)</a></td>
<td class="nump">$ 0.10<span></span>
</td>
<td class="nump">$ 0.01<span></span>
</td>
<td class="num">$ (0.12)<span></span>
</td>
<td class="num">$ (1)<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_EarningsPerShareBasicAndDiluted">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements.  Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period.  Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_EarningsPerShareBasicAndDiluted</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:perShareItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NetIncomeLoss">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Net Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831255<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 28<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3602-108585<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 4: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-04(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879574&amp;loc=d3e536633-122882<br><br>Reference 5: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 225<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-04(18))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879464&amp;loc=d3e573970-122913<br><br>Reference 6: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Other Comprehensive Income<br> -URI http://asc.fasb.org/extlink&amp;oid=51831270<br><br>Reference 7: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03(20))<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NetIncomeLoss</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 16<br> -URI http://asc.fasb.org/extlink&amp;oid=64863997&amp;loc=d3e1505-109256<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 50<br> -Paragraph 1<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=6371337&amp;loc=d3e3550-109257<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 260<br> -SubTopic 10<br> -Section 45<br> -Paragraph 10<br> -URI http://asc.fasb.org/extlink&amp;oid=64863997&amp;loc=d3e1448-109256<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Weighted-Average Number of Common Shares Outstanding<br> -URI http://asc.fasb.org/extlink&amp;oid=6528421<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_WeightedAverageNumberOfSharesOutstandingBasic</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:sharesItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
</div>
</body>
</html>
</TEXT>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6748371968">
<tr>
<th class="tl" colspan="1" rowspan="2"><div style="width: 200px;"><strong>Note 11 - Debt (Details Textual) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th" colspan="2">3 Months Ended</th>
<th class="th" colspan="2">9 Months Ended</th>
<th class="th" colspan="1"></th>
</tr>
<tr>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Sep. 30, 2015</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember', window );">Equipment-based Facility [Member] | Interest Expense [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_RepaymentsOfLongTermDebtPrepaymentPenalty', window );">Repayments of Long-term Debt, Prepayment Penalty</a></td>
<td class="nump">$ 200<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember', window );">Equipment-based Facility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity', window );">Line of Credit Facility, Current Borrowing Capacity</a></td>
<td class="nump">$ 27,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 27,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral', window );">Debt Instrument, Percentage of Appraised Value of Collateral</a></td>
<td class="nump">65.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">65.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfLongTermDebt', window );">Repayments of Long-term Debt</a></td>
<td class="nump">$ 5,000<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">12.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">12.00%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_NotesPayableForTransportationAndConstructionEquipmentMember', window );">Notes Payable for Transportation and Construction Equipment [Member] | Minimum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<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_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">3.12%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">3.12%<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_DebtInstrumentTerm', window );">Debt Instrument, Term</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">3 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_NotesPayableForTransportationAndConstructionEquipmentMember', window );">Notes Payable for Transportation and Construction Equipment [Member] | Maximum [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentInterestRateStatedPercentage', window );">Debt Instrument, Interest Rate, Stated Percentage</a></td>
<td class="nump">7.13%<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">7.13%<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_DebtInstrumentTerm', window );">Debt Instrument, Term</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">5 years<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_NotesPayableForTransportationAndConstructionEquipmentMember', window );">Notes Payable for Transportation and Construction Equipment [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">Notes Payable</a></td>
<td class="nump">$ 2,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 2,900<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3,300<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_RepaymentsOfLongTermDebt', window );">Repayments of Long-term Debt</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">9,546<span></span>
</td>
<td class="text"> <span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">Notes Payable</a></td>
<td class="nump">2,943<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">2,943<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
<td class="nump">$ 3,342<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_InterestExpenseDebt', window );">Interest Expense, Debt</a></td>
<td class="nump">$ 500<span></span>
</td>
<td class="nump">$ 1,100<span></span>
</td>
<td class="nump">$ 2,200<span></span>
</td>
<td class="nump">$ 2,100<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_strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 percentage of the appraised value of collateral pledged for loans.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_DebtInstrumentPercentageOfAppraisedValueOfCollateral</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</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_strl_RepaymentsOfLongTermDebtPrepaymentPenalty">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 of debt initially having maturity due after one year or beyond the normal operating cycle, if longer, related to a prepayment penalty.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_RepaymentsOfLongTermDebtPrepaymentPenalty</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentInterestRateStatedPercentage">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Contractual interest rate for funds borrowed, under the debt agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22(a)(1))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentInterestRateStatedPercentage</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>num:percentItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentTerm">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentTerm</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:durationItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>duration</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_InterestExpenseDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<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 for debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 225<br> -SubTopic 10<br> -Section S99<br> -Paragraph 2<br> -Subparagraph (SX 210.5-03.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=63488584&amp;loc=d3e20235-122688<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_InterestExpenseDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19(b),22(b))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_NotesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NotesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_RepaymentsOfLongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 230<br> -SubTopic 10<br> -Section 45<br> -Paragraph 15<br> -Subparagraph (b)<br> -URI http://asc.fasb.org/extlink&amp;oid=66902209&amp;loc=d3e3291-108585<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Glossary Financing Activities<br> -URI http://asc.fasb.org/extlink&amp;oid=6513228<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_RepaymentsOfLongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember</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_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_DebtInstrumentAxis=strl_NotesPayableForTransportationAndConstructionEquipmentMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=strl_NotesPayableForTransportationAndConstructionEquipmentMember</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_RangeAxis=us-gaap_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;">us-gaap_RangeAxis=us-gaap_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_us-gaap_RangeAxis=us-gaap_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;">us-gaap_RangeAxis=us-gaap_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>
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<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
<html>
<head>
<title></title>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6742507824">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 11 - Debt - Long-term Debt (Details) - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember', window );">Equipment-based Facility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Equipment-based Facility</a></td>
<td class="nump">$ 9,553<span></span>
</td>
<td class="nump">$ 17,957<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsNet', window );">Less deferred loan costs</a></td>
<td class="num">(891)<span></span>
</td>
<td class="num">(1,119)<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Equipment-based Facility, net</a></td>
<td class="nump">8,662<span></span>
</td>
<td class="nump">16,838<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_NotesPayable', window );">Notes payable for transportation and construction equipment and other</a></td>
<td class="nump">2,943<span></span>
</td>
<td class="nump">3,342<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebt', window );"></a></td>
<td class="nump">11,605<span></span>
</td>
<td class="nump">20,180<span></span>
</td>
</tr>
<tr class="re">
<td class="pl custom" style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_strl_LongTermDebtCurrentGross', window );">Current maturities of long-term debt</a></td>
<td class="nump">5,009<span></span>
</td>
<td class="nump">5,192<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DeferredFinanceCostsCurrentNet', window );">Less current deferred loan costs</a></td>
<td class="num">(356)<span></span>
</td>
<td class="num">(336)<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtCurrent', window );">Less current maturities of long-term debt, net</a></td>
<td class="num">(4,653)<span></span>
</td>
<td class="num">(4,856)<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtNoncurrent', window );">Total long-term debt</a></td>
<td class="nump">$ 6,952<span></span>
</td>
<td class="nump">$ 15,324<span></span>
</td>
</tr>
</table>
<div style="display: none;">
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_strl_LongTermDebtCurrentGross">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">strl_LongTermDebtCurrentGross</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>strl_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentCarryingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DeferredFinanceCostsCurrentNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs classified as current. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.8)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=64930785&amp;loc=d3e28555-108399<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsCurrentNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>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_DeferredFinanceCostsNet">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 835<br> -SubTopic 30<br> -Section 45<br> -Paragraph 3<br> -URI http://asc.fasb.org/extlink&amp;oid=64930785&amp;loc=d3e28555-108399<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.17)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DeferredFinanceCostsNet</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>debit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_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://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_LongTermDebt">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebt</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtCurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.19,20)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtCurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LongTermDebtNoncurrent">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02.22)<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtNoncurrent</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_NotesPayable">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 944<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.7-03(a)(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6879938&amp;loc=d3e572229-122910<br><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_NotesPayable</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>na</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td></td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td></td>
</tr>
</table></div>
</div></td></tr>
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<span style="display: none;">v3.5.0.2</span><table class="report" border="0" cellspacing="2" id="idp6738133040">
<tr>
<th class="tl" colspan="1" rowspan="1"><div style="width: 200px;"><strong>Note 11 - Debt - Carrying Values and Fair Values of Debt (Details) - Equipment-based Facility [Member] - USD ($)<br> $ in Thousands</strong></div></th>
<th class="th"><div>Sep. 30, 2016</div></th>
<th class="th"><div>Dec. 31, 2015</div></th>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember', window );">Revolving Credit Facility [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LineOfCredit', window );">Carrying Value</a></td>
<td class="text"> <span></span>
</td>
<td class="text"> <span></span>
</td>
</tr>
<tr class="rh">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember', window );">Term Loan [Member]</a></td>
<td class="text">&#160;<span></span>
</td>
<td class="text">&#160;<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Carrying Value</a></td>
<td class="nump">9,553<span></span>
</td>
<td class="nump">17,957<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_LongTermDebtFairValue', window );">Fair Value</a></td>
<td class="nump">9,527<span></span>
</td>
<td class="nump">17,957<span></span>
</td>
</tr>
<tr class="ro">
<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 );">Carrying Value</a></td>
<td class="nump">8,662<span></span>
</td>
<td class="nump">16,838<span></span>
</td>
</tr>
<tr class="re">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentCarryingAmount', window );">Carrying Value</a></td>
<td class="nump">9,553<span></span>
</td>
<td class="nump">17,957<span></span>
</td>
</tr>
<tr class="ro">
<td class="pl " style="border-bottom: 0px;" valign="top"><a class="a" href="javascript:void(0);" onclick="top.Show.showAR( this, 'defref_us-gaap_DebtInstrumentFairValue', window );">Fair Value</a></td>
<td class="nump">$ 9,527<span></span>
</td>
<td class="nump">$ 17,957<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_DebtInstrumentCarryingAmount">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentCarryingAmount</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 10<br> -Subparagraph (a)<br> -URI http://asc.fasb.org/extlink&amp;oid=73719730&amp;loc=d3e13433-108611<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 825<br> -SubTopic 10<br> -Section 50<br> -Paragraph 12<br> -URI http://asc.fasb.org/extlink&amp;oid=73719730&amp;loc=d3e13476-108611<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<td>xbrli:monetaryItemType</td>
</tr>
<tr>
<td><strong> Balance Type:</strong></td>
<td>credit</td>
</tr>
<tr>
<td><strong> Period Type:</strong></td>
<td>instant</td>
</tr>
</table></div>
</div></td></tr>
</table>
<table border="0" cellpadding="0" cellspacing="0" class="authRefData" style="display: none;" id="defref_us-gaap_LineOfCredit">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Definition</a><div><p>The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>Reference 1: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 210<br> -SubTopic 10<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.5-02(22))<br> -URI http://asc.fasb.org/extlink&amp;oid=6877327&amp;loc=d3e13212-122682<br><br>Reference 2: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 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><br>Reference 3: http://www.xbrl.org/2003/role/presentationRef<br> -Publisher FASB<br> -Name Accounting Standards Codification<br> -Topic 942<br> -SubTopic 210<br> -Section S99<br> -Paragraph 1<br> -Subparagraph (SX 210.9-03(16))<br> -URI http://asc.fasb.org/extlink&amp;oid=6876686&amp;loc=d3e534808-122878<br></p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_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_LongTermDebtFairValue">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></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 fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ References</a><div style="display: none;"><p>No definition available.</p></div>
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">+ Details</a><div style="display: none;"><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_LongTermDebtFairValue</td>
</tr>
<tr>
<td style="padding-right: 4px;white-space:nowrap;"><strong> Namespace Prefix:</strong></td>
<td>us-gaap_</td>
</tr>
<tr>
<td><strong> Data Type:</strong></td>
<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_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember">
<tr><td class="hide"><a style="color: white;" href="javascript:void(0);" onclick="top.Show.hideAR();">X</a></td></tr>
<tr><td><div class="body" style="padding: 2px;">
<a href="javascript:void(0);" onclick="top.Show.toggleNext( this );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_DebtInstrumentAxis=strl_EquipmentBasedFacilityMember</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>
<td></td>
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<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>
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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 );">- Details</a><div><table border="0" cellpadding="0" cellspacing="0">
<tr>
<td><strong> Name:</strong></td>
<td style="white-space:nowrap;">us-gaap_CreditFacilityAxis=strl_TermLoanMember</td>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
