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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Cash flows from operating activities:    
Net loss $ (1,951) $ (3,868)
Loss on discontinued operations (326)
Loss from continuing operations (1,951) (3,542)
Adjustments to reconcile loss from continuing operations to net cash used in operating activities:    
Depreciation and capital lease amortization 1,522 1,729
Amortization of intangible assets 119 128
Amortization of debt issuance costs 42 42
Provision for doubtful accounts 87 261
Deferred income taxes (330) (238)
(Gain) loss on disposal of property and equipment 71 (19)
Share-based compensation expense 81 271
Adjustments to contingent consideration 27
Unrealized (gain) loss on foreign currency forward contracts (32) 30
Changes in operating assets and liabilities:    
Trade and other receivables 4,196 6,678
Contract assets, net (3,236) (2,498)
Inventories 610 2,038
Prepaid expenses and other assets 650 387
Accounts payable (3,045) (1,714)
Accrued and other liabilities (1,050) (3,657)
Net cash used in operating activities from continuing operations (2,266) (77)
Net cash used in operating activities from discontinued operations (205)
Net cash used in operating activities (2,266) (282)
Cash flows from investing activities:    
Additions to property and equipment (744) (529)
Proceeds from sale of property and equipment 25
Net cash used in investing activities from continuing operations (744) (504)
Net cash provided by investing activities from discontinued operations 750
Net cash provided by (used in) investing activities 6 (504)
Cash flows from financing activities:    
Tax withholdings related to net share settlements of restricted stock and performance share awards (1,301) (24)
Payments on capital lease obligations (94) (100)
Payments of contingent consideration (112)
Net cash used in financing activities from continuing operations (1,395) (236)
Change in cash and cash equivalents (3,655) (1,022)
Cash and cash equivalents, beginning of period 43,646 21,829
Cash and cash equivalents, end of period 39,991 20,807
Noncash investing and financing activities:    
Accrued property and equipment purchases 168 133
Capital lease additions $ 458