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Condensed Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash flows from operating activities:    
Net loss $ (5,104) $ (25,223)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation and amortization 5,430 7,243
Provision for bad debts 41 (14)
Impairment of capitalized software 504 0
Provision for excess and obsolete inventory 217 247
Share-based compensation expense 1,800 11,199
Amortization of debt discount and debt issuance costs 489 1,650
Fair value adjustment on derivative instrument 0 (609)
Loss on debt conversion and extinguishment, net 0 450
Deferred income taxes 101 189
Finance Lease, Right-of-Use Asset, Amortization 592 342
Changes in assets and liabilities, net of effects of divestiture:    
Accounts receivable (1,997) 5,477
Inventories 3,097 (355)
Prepaid expenses and other assets (1,940) 2,701
Accounts payable 5,544 (10,400)
Accrued expenses, income taxes, and other (490) 6,819
Increase (Decrease) in Operating Lease Liability (625) (354)
Net cash provided by (used in) operating activities 7,659 (638)
Cash flows from investing activities:    
Purchases of property, plant and equipment (61) (763)
Additions to capitalized software development costs (2,443) (3,127)
Net cash used in investing activities (2,504) (3,890)
Cash flows from financing activities:    
Net (repayment) borrowing of bank and overdraft facilities 0 (54)
Principal payments under finance lease obligations (199) (62)
Proceeds from a public offering, net of issuance costs 529 0
Principal payments on financed assets (360) (1,007)
Proceeds from Lines of Credit (3,385) 0
Proceeds from stock option exercises and employee stock purchase plan, net of taxes paid on vested restricted stock units 75 63
Net cash used in financing activities (3,340) (1,060)
Effect of exchange rates on cash (272) 957
Net increase (decrease) in cash, cash equivalents and restricted cash 1,543 (4,631)
Cash, cash equivalents and restricted cash, beginning of period 7,143 49,812
Cash, and cash equivalents, and restricted cash, end of period 8,686 45,181
Cash paid during the year for:    
Interest 117 0
Income taxes 59 41
Supplemental disclosures of non-cash activities:    
Transfer of inventories to rental assets 0 225
Capital expenditures financed through accounts payable or accrued liabilities 2,164 2,105
Right-of-use assets obtained in exchange for operating leases liabilities $ 50 $ 79