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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Cash flows from operating activities:    
Net (loss) income $ (2,933) $ 2,838
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 1,671 1,545
Amortization of acquisition related intangible assets 1,946 1,963
Amortization of acquisition related inventory step-up 0 2,578
Non-cash operating lease cost 403 405
Change in fair value of contingent consideration 0 (4,820)
Loss on disposal of fixed assets 0 831
Stock-based compensation expense 2,545 2,259
Deferred income taxes (273) (1,162)
Provision (recovery) for credit losses 5 (21)
Provision for inventory 586 277
Changes in operating assets and liabilities:    
Accounts receivable 383 (2,478)
Inventories (602) (4,040)
Prepaid expenses, other current and long-term assets (1,189) 87
Accounts payable (473) 188
Operating lease liabilities (387) (385)
Accrued expenses, other current and long-term liabilities (2,929) (1,254)
Income taxes (622) (1,242)
Net cash used in operating activities (1,869) (2,431)
Cash flows from investing activities:    
Acquisition of Parcus Medical and Arthrosurface, net of cash acquired 0 (350)
Proceeds from maturities of investments 0 2,501
Purchases of property and equipment (1,326) (417)
Net cash (used in) provided by investing activities (1,326) 1,734
Cash flows from financing activities:    
Cash paid for tax withheld on vested restricted stock awards (846) (332)
Proceeds from exercises of equity awards 15 0
Payments made on finance leases (31) (119)
Net cash used in financing activities (862) (451)
Exchange rate impact on cash (4) (70)
Decrease in cash and cash equivalents (4,061) (1,218)
Cash and cash equivalents at beginning of period 94,386 95,817
Cash and cash equivalents at end of period 90,325 94,599
Non-cash Investing Activities:    
Purchases of property and equipment included in accounts payable and accrued expenses 728 570
Accounting Standards Update 2016-02 [Member]    
Non-cash Investing Activities:    
Right-of-use assets obtained in exchange for operating lease liabilities $ 0 $ 220