Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (6)	$ (9,138)
Adjustments to reconcile net loss to net cash (used in) provided by:
Depreciation and amortization	21,134	22,422
Unamortized debt issuance costs on debt extinguishment	2,164	0
Deferred financing cost amortization	676	942
Deferred income taxes	(561)	(5,478)
Stock-based compensation	1,710	1,800
Gain on sale of property and equipment	(2,527)	(590)
Other gain from continuing operations	(5,448)	0
Change in operating assets and liabilities:
Accounts receivable	11,036	19,930
Income tax receivable	(56)	(2,203)
Inventory	763	74
Prepaid expenses and other	3,410	1,481
Costs and estimated earnings in excess of billings on uncompleted contracts	(11,405)	(6,859)
Accounts payable	(14,266)	2,225
Accrued liabilities	(1,925)	(836)
Income tax payable	(256)	2,364
Billings in excess of costs and estimated earnings on uncompleted contracts	(9,395)	5,721
Other	(287)	0
Net cash (used in) provided by operating activities	(5,239)	31,855
Cash flows from investing activities:
Proceeds from sale of property and equipment	2,320	6,361
Purchase of property and equipment	(15,043)	(7,234)
Contributions to CSV life insurance	(424)	(430)
Acquisition of TBC	0	(6,000)
TBC acquisition adjustment	0	(557)
Proceeds from return of investment	94	0
Insurance claim proceeds related to property and equipment	1,346	0
Net cash used in investing activities	(11,707)	(7,860)
Cash flows from financing activities:
Borrowings from Credit Facility	29,861	52,000
Payments made on borrowings from Credit Facility	(21,361)	(74,438)
Loan costs from Credit Facility	(861)	(210)
Exercise of stock options	2,815	1,007
Net cash provided by (used in) financing activities	10,454	(21,641)
Net change in cash and cash equivalents	(6,492)	2,354
Cash and cash equivalents at beginning of period	9,086	305
Cash and cash equivalents at end of period	2,594	2,659
Supplemental disclosures of cash flow information, cash paid during the period for:
Interest	2,994	3,232
Taxes, net of refunds	$ 472	$ 1,067

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-Paragraph 1A
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=84161450&loc=SL4573702-111684

+ Details

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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

Name:	us-gaap_RepaymentsOfDebt
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Data Type:	xbrli:monetaryItemType
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- 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

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Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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