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CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net income (loss) $ (2,486) $ (1,911)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 369 451
Equipment transferred to cost of goods sold 59 259
Share-based compensation 539 967
Net change in:    
Trade accounts receivable 681 3,119
Inventories 471 (704)
Other current assets 7 140
Accounts payable and accrued liabilities 125 (1,582)
Deferred revenue (336) (68)
Other long-term liabilities (581) 184
Deposits and other long-term assets 576 (300)
Net cash provided by (used in) operating activities (576) 555
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property, plant and equipment (352) (279)
Cash provided by (used in) investing activities (352) (279)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax (107) (216)
Cash provided by (used in) financing activities (107) (216)
Increase (decrease) in cash and cash equivalents (1,035) 60
Effects of exchange rate changes on cash 373 (29)
Cash and cash equivalents at beginning of period 10,326 12,341
Cash and cash equivalents at end of period 9,664 12,372
Cash paid during the period for:    
Income taxes $ 9 $ 458