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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Cash flows from operating activities:    
Net loss $ (1,984) $ (383)
Adjustments to reconcile net loss to net cash (used in) operating activities:    
Depreciation and amortization 892 863
Stock-based compensation expense 34 15
Adjustment to reconcile operating lease expense to cash paid 48 11
Deferred income taxes (165) (83)
Changes in operating assets and liabilities:    
Accounts receivable 538 (291)
Inventories 465 284
Prepaid expenses and other assets 5 (170)
Accounts payable 47 87
Accrued liabilities (44) (184)
Accrued income taxes (203) (265)
Net cash (used in) operating activities (367) (116)
Cash flows from investing activities:    
Purchases of property, plant and equipment (177) (123)
Acquisition of Conductive Transfers and Global Print Solutions (314)  
Acquisition of Calman Technology Limited, net of cash acquired   (4,873)
Acquisition of SPEC and KWJ, net of cash acquired   111
Net cash (used in) investing activities (491) (4,885)
Cash flows from financing activities:    
Payment of dividends on preferred stock (400) (400)
Repurchases of common stock   (350)
Net cash (used in) financing activities (400) (750)
Effect of exchange rate changes on cash (99) (36)
Net (decrease) in cash and cash equivalents (1,354) (5,787)
Cash and cash equivalents, beginning of period 4,304 10,091
Cash and cash equivalents, end of period 2,950 4,304
Supplemental disclosure of cash flow information:    
Income taxes paid 384 487
Interest paid 0 0
Supplemental non-cash investing and financing activities:    
Lease liabilities arising from obtaining right-of-use assets $ 1,200 $ 55