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Note 3 - Loans and Allowance for Credit Losses - Financing Receivable, Troubled Debt Restructurings (Details) $ in Thousands | 9 Months Ended
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Sep. 30, 2025 USD ($)
Commercial Real Estate Portfolio Segment [Member] | Commercial Real Estate, Owner Occupied [Member] | Interest Only Payments [Member] |
amortized cost | $ 6,396
Percentage | 4.40%
Commercial real estate owner-occupied (Month) | 3 months
Commercial and industrial (Month) | 3 months
Commercial Non Real Estate Segment [Member] | Commercial and Industrial [Member] | Extended Maturity [Member] |
amortized cost | $ 6
Percentage | 0.01%

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