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Note 5 - Loans and the Allowance for Credit Losses - Aging of Modified Loans (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Commercial Portfolio Segment [Member] |  |  |  |
Modified | $ 11,150 | $ 0 | $ 11,276 | $ 53
Commercial Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified |  |  | 21,559 |
Commercial Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified |  |  | 0 |
Commercial Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified |  |  | 0 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |
Modified |  | $ 213 |  | $ 213
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified |  |  | 7,272 |
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified |  |  | 0 |
Commercial Real Estate Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified |  |  | 0 |
Residential Portfolio Segment [Member] |  |  |  |
Modified | $ 1,417 |  | 1,417 |
Residential Portfolio Segment [Member] | Financial Asset, Not Past Due [Member] |  |  |  |
Modified |  |  | 1,417 |
Residential Portfolio Segment [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |  |  |
Modified |  |  | 0 |
Residential Portfolio Segment [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |  |  |
Modified |  |  | $ 0 |

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