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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Cash flows from operating activities:    
Net loss $ (3,868) $ (9,583)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation and capital lease amortization 1,850 2,181
Amortization of intangible assets 128 131
Amortization of debt issuance costs 42 41
Provision for doubtful accounts 261 (8)
Deferred income taxes (238) (602)
(Gain) Loss on disposal of property and equpiment (19) 10
Share-based compensation expense 271 178
Adjustments to contingent consideration 27 (20)
Unrealized loss on foreign currency forward contracts 30 415
Changes in operating assets and liabilities:    
Trade and other receivables 6,678 5,606
Costs and estimated earnings in excess of billings on uncompleted contracts, net (2,498) 4,434
Inventories 2,038 119
Prepaid expenses and other assets 387 285
Accounts payable (1,714) (735)
Accrued and other liabilities (3,657) (1,263)
Net cash provided by (used in) operating activities (282) 1,189
Cash flows from investing activities:    
Additions to property and equipment (529) (736)
Proceeds from sale of property and equipment 25
Net cash used in investing activities (504) (736)
Cash flows from financing activities:    
Tax withholdings related to net share settlements of restricted stock and performance share awards (24) (31)
Payments on capital lease obligations (100) (96)
Payments of contingent consideration (112) (1,233)
Net cash used in financing activities (236) (1,360)
Change in cash and cash equivalents (1,022) (907)
Cash and cash equivalents, beginning of period 21,829 10,309
Cash and cash equivalents, end of period 20,807 9,402
Noncash investing and financing activities:    
Accrued property and equipment purchases 133 131
Capital lease additions $ 71