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Note 4 - Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Gain on reversal of contingent loss of discontinued operations |  |  | $ 0 | $ (700) |
Income from discontinued operations, net of tax | $ 150 | $ 0 | 450 | 0 |
Noncurrent assets from discontinued operations | 459 |  | 459 |  | $ 1,025
Transport Financial Services [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |  |  |
Gain on reversal of contingent loss of discontinued operations | (200) | 0 | (600) | 0 |
Income before income taxes | 200 | 0 | 600 | 0 |
Income tax expense | 50 | $ 0 | 150 | $ 0 |
Noncurrent deferred tax asset | 459 |  | 459 |  | 1,025
Noncurrent assets from discontinued operations | 459 |  | 459 |  | 1,025
Total assets from discontinued operations | 459 |  | 459 |  | 1,025
Long-term contingent loss liability | 1,835 |  | 1,835 |  | 4,100
Long-term liabilities of discontinued operations | 1,835 |  | 1,835 |  | 4,100
Total liabilities from discontinued operations | $ 1,835 |  | $ 1,835 |  | $ 4,100

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