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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:    
Net (loss) $ (90) $ (705)
Adjustments to reconcile net (loss) to net cash (used in) operating activities:    
Depreciation and amortization 405 451
Stock-based compensation expense 14 14
Adjustment to reconcile operating lease expense to cash paid (6) (1)
Deferred income taxes (93) (161)
Changes in operating assets and liabilities:    
Accounts receivable (618) (438)
Inventories 12 391
Prepaid expenses and other assets (46) 55
Accounts payable (525) (114)
Accrued liabilities 96 (54)
Accrued income taxes 22 153
Net cash (used in) operating activities (829) (409)
Cash flows from investing activities:    
Purchases of property, plant and equipment (1) (34)
Net cash (used in) investing activities (1) (34)
Cash flows from financing activities:    
Payment of dividends on preferred stock   (200)
Net cash (used in) financing activities   (200)
Effect of exchange rate changes on cash (63) 22
Net (decrease) in cash and cash equivalents (893) (621)
Cash and cash equivalents, beginning of period 2,724 2,950
Cash and cash equivalents, end of period 1,831 2,329
Supplemental disclosure of cash flow information:    
Income taxes paid 2 39
Supplemental disclosure of non-cash investing and financing activities:    
Lease liabilities arising from obtaining right-of-use assets $ 400 $ 31