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Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)
In Thousands, unless otherwise specified
 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Cash Flows From Operating Activities:    
Net income (loss) $ (8,912) $ 15,067
Adjustments to reconcile net income (loss) to net cash provided by operating activities:    
Depreciation 6,075 7,182
Amortization of intangible assets 275 13
Provision for doubtful accounts (224) (656)
Amortization of debt issuance costs 220 317
Deferred income taxes 851 765
Loss on sale of business 12,083  
Stock based compensation expense 1,185 1,292
Unrealized (gain) loss on foreign currency forward contracts 152 (291)
Adjustments to contingent consideration (877)  
Other, net 25 26
Changes in operating assets and liabilities:    
Trade and other receivables, net 19,658 (15,792)
Costs and estimated earnings in excess of billings on uncompleted contracts, net 3,005 4,784
Inventories 13,296 (2,027)
Refundable income taxes (5,260)  
Prepaid expenses and other assets 284 1,040
Accounts payable (3,521) 9,710
Accrued and other liabilities (5,080) (8,241)
Net cash provided by operating activities 33,235 13,189
Cash Flows From Investing Activities:    
Additions to property and equipment (9,005) (18,394)
Proceeds from sale of business 31,609  
Proceeds from the sale of property and equipment   1,680
Issuance of notes receivable   (2,850)
Other investing activities 22  
Net cash provided by (used in) investing activities 22,626 (19,564)
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 111,581 85,971
Payments on note payable to financial institution (159,576) (72,754)
Payments on capital lease obligations (767) (1,678)
Net cash provided by (used in) financing activities (56,374) 6,523
Change in cash and cash equivalents (513) 148
Cash and cash equivalents, beginning of period 588 46
Cash and cash equivalents, end of period 75 194
Non-Cash Investing Activity:    
Escrow account related to capital lease financing   898
Accrued property and equipment purchases $ 940 $ 1,553