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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Cash flows from operating activities    
Net loss $ (4,172) $ (7,590)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 138 157
Provision for inventory obsolescence 28 7
Loss on disposal of property and equipment 0 20
Stock-based compensation 451 1,128
Non-cash lease expense 26 31
Non-cash interest expense 234 221
Changes in operating assets and liabilities:    
Trade receivables 3,942 1,478
Prepaid expenses and other assets 37 241
Inventories (199) 138
Accounts payable (331) (599)
Accrued expenses and other liabilities (856) (1,573)
Net cash used in operating activities (702) (6,341)
Cash flows from investing activities    
Purchases of property and equipment (55) (35)
Net cash used in investing activities (55) (35)
Cash flows from financing activities    
Repayment of finance lease liabilities (5) (5)
Contributions from non-controlling interest 30 0
Net cash provided by (used in) financing activities 25 (5)
Effect of exchange rates on cash 2 11
Net change in cash and cash equivalents (730) (6,370)
Cash and cash equivalents, beginning of period 31,741 43,652
Cash and cash equivalents, end of period 31,011 37,282
Cash paid for:    
Interest 1,145 1,175
Income taxes $ 1 $ 6