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Note 8 - Deposits and Borrowed Funds - Short-term Borrowed Funds (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Agency residential MBS | $ 439,287 | $ 434,205
Total short-term borrowed funds | 113,219 | 120,322
Agency Residential MBS [Member] |  |
Agency residential MBS | 20,576 | 21,284
Corporate Debt Securities [Member] |  |
Agency residential MBS | $ 418,711 | $ 412,921

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