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Note 2 - Summary of Significant Accounting Policies - Schedule of Earnings Per Share (Details) - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Net loss from continuing operations $ (1,964) $ (2,149) $ (5,294) $ (4,998)
Less: Increase to accumulated deficit due to adjustment to Preferred Stock conversion price (0) (0) (0) 380
Net loss from continuing operations attributable to common stockholders (1,964) (2,149) (5,294) (5,378)
Net income from discontinued operations, net of taxes (Notes 14, 15 and 16) 42 564 11,042 199
Net (loss) income $ (1,922) $ (1,585) $ 5,748 $ (5,179)
Basic (and diluted for net loss) (in shares) 5,818 1,155 5,564 930
Effect of dilutive Unsecured Convertible Notes (in shares) 0 0 107 0
Diluted earnings (loss) per share attributable to common stockholders (in shares) 5,818 1,155 5,671 930