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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Cash Flows From Operating Activities:    
Net income (loss) $ (3,891) $ 16,083
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation 10,098 10,111
Amortization of intangible assets 409 20
Provision for doubtful accounts (294) (1,029)
Amortization of debt issuance costs 305 476
Loss on impairment   250
Deferred income taxes 1,144 3,603
Loss on sale of business 13,497   
Stock based compensation expense 2,067 2,167
Unrealized (gain) loss on foreign currency forward contracts (23) (193)
Adjustments to contingent consideration (1,736)  
Other, net 25 16
Changes in operating assets and liabilities:    
Trade and other receivables, net 19,113 (22,082)
Costs and estimated earnings in excess of billings on uncompleted contracts, net (7,362) 19,775
Inventories 1,435 3,901
Refundable income taxes (2,815) (1,339)
Prepaid expenses and other assets 1,524 1,702
Accounts payable 2,246 2,566
Accrued and other liabilities (4,576) (14,642)
Net cash provided by operating activities 31,166 21,385
Cash Flows From Investing Activities:    
Additions to property and equipment (11,619) (22,080)
Proceeds from sale of business 29,791  
Proceeds from the sale of property and equipment 8 1,695
Issuance of notes receivable   (5,700)
Other investing activities 22 (250)
Net cash provided by (used in) investing activities 18,202 (26,335)
Cash Flows From Financing Activities:    
Proceeds from issuance of common stock 28 72
Tax withholdings related to net share settlements of restricted stock awards and performance shares (1,283) (802)
Payments on long-term debt (6,357) (4,286)
Borrowings under note payable to financial institution 184,081 138,971
Payments on note payable to financial institution (225,351) (126,553)
Payments on capital lease obligations (1,002) (2,465)
Net cash provided by (used in) financing activities (49,884) 4,937
Change in cash and cash equivalents (516) (13)
Cash and cash equivalents, beginning of period 588 46
Cash and cash equivalents, end of period 72 33
Non-Cash Investing Activity:    
Accrued property and equipment purchases $ 222 $ 1,233