Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ 2,723	$ (9,498)
Adjustments to reconcile net income (loss) to net cash provided by (used in)
Depreciation and amortization	25,765	18,831
Deferred financing cost amortization	921	0
Bad debt expense	0	67
Deferred income taxes	957	(2,665)
Stock-based compensation	1,842	1,750
Gain (loss) on sale of property and equipment	(1,260)	2,007
Change in operating assets and liabilities:
Accounts receivable	(24,290)	(33,000)
Income tax receivable	0	233
Inventory	1,241	(397)
Prepaid expenses and other	2,127	(3,266)
Costs and estimated earnings in excess of billings on uncompleted contracts	6,888	1,440
Accounts payable	(2,638)	10,114
Accrued liabilities	(1,942)	6,271
Income tax payable	13	(1,891)
Billings in excess of costs and estimated earnings on uncompleted contracts	1,084	7,417
Deferred revenue	0	(34)
Net cash provided by (used in) operating activities	13,431	(2,621)
Cash flows from investing activities:
Proceeds from sale of property and equipment	1,737	667
Contributions to CSV life insurance	(634)	0
TAS acquisition adjustment	(369)	0
Acquisition of TAS	0	(111,977)
Acquisition of HITS, net	0	(357)
Purchase of property and equipment	(16,334)	(13,577)
Net cash used in investing activities	(15,600)	(125,244)
Cash flows from financing activities:
Borrowings from Credit Facility	47,000	149,021
Payments made on borrowings from Credit Facility	(42,552)	(6,268)
Loan costs from Credit Facility	(486)	0
Extinguishment of debt	0	(32,427)
Exercise of stock options	8	28
Purchase of shares into treasury	0	(3,101)
Net cash provided by financing activities	3,970	107,253
Net change in cash and cash equivalents	1,801	(20,612)
Cash and cash equivalents at beginning of period	1,345	38,893
Cash and cash equivalents at end of period	3,146	18,281
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	3,864	978
Taxes (net of refunds)	$ 999	$ 490

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.5)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

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Balance Type:	debit
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- References

No definition available.

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Balance Type:	na
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