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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Cash flows from operating activities:    
Net (loss) income $ (9,951) $ 9,927
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation 4,984 4,702
Amortization of acquisition related intangible assets 5,837 5,885
Amortization of acquisition related inventory step-up 0 6,244
Non-cash operating lease cost 1,322 1,312
Change in fair value of contingent consideration 0 (21,920)
Loss on disposal of fixed assets 0 831
Stock-based compensation expense 10,502 7,919
Deferred income taxes (3,491) 1,018
Provision (recovery) for doubtful accounts 379 (60)
Provision for inventory 3,701 3,702
Other (13)
Changes in operating assets and liabilities:    
Accounts receivable (4,983) (8,321)
Inventories (3,933) (7,117)
Prepaid expenses, other current and long-term assets (456) 1,864
Accounts payable 533 (702)
Operating lease liabilities (1,054) (1,247)
Accrued expenses, other current and long-term liabilities 115 3,104
Contingent consideration 0 (2,780)
Income taxes 423 (423)
Net cash provided by operating activities 3,928 3,925
Cash flows from investing activities:    
Acquisition of Parcus Medical and Arthrosurface, net of cash acquired 0 (363)
Proceeds from maturities of investments 0 2,501
Purchases of property and equipment (4,957) (4,016)
Net cash used in investing activities (4,957) (1,878)
Cash flows from financing activities:    
Payments made on finance leases (284) (210)
Cash paid for tax withheld on vested restricted stock awards (935) (423)
Proceeds from exercises of equity awards 15 1,014
Contingent consideration payout (4,315) (7,220)
Net cash used in financing activities (5,519) (6,839)
Exchange rate impact on cash (61) (49)
Decrease in cash and cash equivalents (6,609) (4,841)
Cash and cash equivalents at beginning of period 94,386 95,817
Cash and cash equivalents at end of period 87,777 90,976
Supplemental disclosure of cash flow information:    
Purchases of property and equipment included in accounts payable and accrued expenses 108 220
Accounting Standards Update 2016-02 [Member]    
Supplemental disclosure of cash flow information:    
Right-of-use assets obtained in exchange for operating lease liabilities $ 11,589 $ 195