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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 $ (653) $ (734)
Less: (loss) income from discontinued operations, net of income taxes (17) 75
Net loss from continuing operations (636) (809)
Adjustments to reconcile net loss to net cash provided by (used in) continuing operating activities:    
Depreciation and amortization 95 133
Write-off of patents and trademarks 88
Share-based compensation 23 111
Other 154 186
Changes in operating assets and liabilities:    
Other assets 502 629
Prepaid and other current assets 433 34
Accounts payable (82) 112
Accrued expenses and other current liabilities 274 (413)
Lease liabilities (203) (213)
Other non-current liabilities 51 1
Total adjustments 1,335 580
Net cash provided by (used in) continuing operating activities 699 (229)
Discontinued operations:    
Net cash (used in) provided by operating activities (13) 240
Net cash (used in) provided by discontinued operations (13) 240
Net increase in cash 686 11
Cash and cash equivalents - continuing operations, beginning of period 5,059 4,327
Total cash and cash equivalents, end of period $ 5,745 $ 4,338