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Note 3 - Loans and Allowance for Credit Losses - Financing Receivable, Troubled Debt Restructurings (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Interest Only Payments [Member] |  |
amortized cost | $ 6,396 | $ 6,396
Percentage | 5.57% | 5.40%
Commercial real estate owner-occupied (Month) | 6 months | 6 months
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Extended Maturity [Member] |  |
amortized cost | $ 7 |
Percentage | 0.01% |
Commercial and industrial (Month) | 3 months |

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