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Note 7 - Income Taxes (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Income Tax Expense (Benefit) | $ 50 | $ 163 | $ 730 | $ 220
Effective Income Tax Rate Reconciliation, Percent | 7.70% | 11.80% | 13.90% | 9.50%
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount |  |  | $ 500 |
Supplemental Executive Retirement Plan (SERP) [Member] |  |  |  |
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount |  | $ 200 |  |

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