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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Cash flows from operating activities:    
Net loss $ (15,825) $ (14,180)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation 4,979 4,651
Impairment of goodwill 5,282
Amortization of intangible assets 262 280
Provision for doubtful accounts (180) (113)
Amortization of debt issuance costs 83 136
Deferred income taxes (732) 888
Stock based compensation expense 813 1,133
Unrealized (gain) loss on foreign currency forward contracts 430 (50)
Adjustments to contingent consideration (599) 62
Other, net (10) (3)
Changes in operating assets and liabilities:    
Trade and other receivables, net 10,912 27,052
Insurance settlements 2,625
Costs and estimated earnings in excess of billings on uncompleted contracts, net (4,893) (5,849)
Inventories 3,968 21,931
Refundable income taxes 3,104 (2,084)
Prepaid expenses and other assets 581 667
Accounts payable 515 (356)
Accrued and other liabilities (1,878) (307)
Net cash provided by operating activities 1,530 41,765
Cash flows from investing activities:    
Additions to property and equipment (1,336) (6,016)
Proceeds from sale of business 4,300
Proceeds from sale of property & equipment 20 55
Collections on notes receivable 1,080
Net cash used in investing activities (1,316) (581)
Cash flows from financing activities:    
Tax withholdings related to net share settlements of restricted stock and performance stock awards (31) (423)
Borrowings on line of credit 56,250
Repayments on line of credit (94,785)
Payments on capital lease obligations (194) (2,084)
Payments of contingent consideration (1,233)
Other financing activities 19
Net cash used in financing activities (1,458) (41,023)
Change in cash and cash equivalents (1,244) 161
Cash and cash equivalents, beginning of period 10,309 527
Cash and cash equivalents, end of period 9,065 688
Non-Cash Investing Activity:    
Accrued property and equipment purchases 118 718
Capital lease additions $ 259