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Note 13 - Financial Instruments With Off-balance Sheet Risk - Financial Instruments Outstanding Representing Credit Risk (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Commitments to Extend Credit [Member] |  |
Offsetting Assets [Line Items] |  |
Off balance sheet liability, amount | $ 230,755 | $ 248,661
Standby Letters of Credit 1 [Member] |  |
Offsetting Assets [Line Items] |  |
Off balance sheet liability, amount | 20,016 | 21,081
Interest Rate Lock Commitments [Member] |  |
Offsetting Assets [Line Items] |  |
Off balance sheet liability, amount | $ 14,246 | $ 10,303

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