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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Cash flows from operating activities:    
Net loss $ (7,195) $ (5,237)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation 1,453 1,497
Impairment charges 0 1,401
Amortization of intangible assets 4,258 4,289
Amortization of deferred financing costs 295 287
Stock-based compensation expense 2,641 2,193
Provision for allowance for doubtful accounts 24 394
Other 5 41
Changes in operating assets and liabilities:    
Accounts receivable 6,805 3,805
Inventories (511) 635
Other assets (878) (147)
Accounts payable 665 (2,059)
Accrued income taxes 102 (591)
Other current liabilities (181) 180
Deferred revenue (380) (255)
Other long-term liabilities (262) (608)
Net cash provided by operating activities 6,841 5,825
Cash flows from investing activities:    
Additions to property, plant and equipment (1,088) (778)
Disposition of business 0 1,020
Other 0 (15)
Net cash (used in) provided by investing activities (1,088) 227
Cash flows from financing activities:    
Proceeds from borrowings 9,615 4,300
Repayments of debt (20,251) (11,103)
Taxes paid for net share settlement of equity awards (688) (392)
Net cash used in financing activities (11,324) (7,195)
Effect of exchange rate changes on cash 42 (185)
Decrease in cash and cash equivalents (5,529) (1,328)
Cash and cash equivalents at beginning of period 8,335 8,173
Cash and cash equivalents at end of period 2,806 6,845
Supplemental disclosures of cash flow information:    
Cash paid for interest 3,795 4,226
Cash paid for income taxes, net of refunds $ 410 $ 411