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Note 2 - Discontinued Operations - Results of Discontinued Operations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Noncurrent assets from discontinued operations | $ 409 | $ 1,025 |
Contingent liabilities | 1,635 | 4,100 |
Transport Financial Services [Member] |  |  |
Discontinued Operation, Tax Effect of Discontinued Operation | 200 | 200 | $ 800
Transport Financial Services [Member] | Discontinued Operations, Disposed of by Sale [Member] |  |  |
Operating expenses | 0 | 0 | 25
(Reversal of) loss contingency | (800) | (1,000) | (3,412)
Operating income | 800 | 1,000 | 3,387
Income before income taxes | 800 | 1,000 | 3,387
Discontinued Operation, Tax Effect of Discontinued Operation | 200 | 250 | 847
Net income from discontinued operations, net of tax | 600 | 750 | $ 2,540
Noncurrent deferred tax asset | 409 | 1,025 |
Noncurrent assets from discontinued operations | 409 | 1,025 |
Total assets from discontinued operations | 409 | 1,025 |
Accounts payable | 0 | 0 |
Current liabilities of discontinued operations | 0 | 0 |
Total liabilities from discontinued operations | $ 1,635 | $ 4,100 |

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