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Note 22 - Qualified Affordable Housing Project Investments (Details Textual) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Investment, Proportional Amortization Method, Elected, Amount | $ 10,100,000 | $ 6,400,000 |
Investment Program, Proportional Amortization Method, Elected, Commitment | 4,800,000 | 2,300,000 |
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization Expense | 1,200,000 | 1,000,000 | $ 991,000
Affordable Housing Project Investment, Write-down, Amount | 0 | 0 | 0
Investment Program, Proportional Amortization Method, Applied, Amortization Expense | $ 1,300,000 | $ 1,100,000 | $ 1,100,000
Investment, Proportional Amortization Method, Elected, Statement of Financial Position [Extensible Enumeration] | Interest Receivable and Other Assets |  |
Investment Program, Proportional Amortization Method, Elected, Income Tax Credit and Other Income Tax Benefit, before Amortization, Statement of Income or Comprehensive Income [Extensible Enumeration] | Other Comprehensive Income (Loss), Net of Tax |  |
Investment Program Proportional Amortization Method Elected Income Tax Credit And Other Income Tax Benefit Before Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag | true |  |
Investment Program, Proportional Amortization Method, Applied, Amortization Expense, Statement of Income or Comprehensive Income [Extensible Enumeration] | Income Tax Expense (Benefit) |  |
Investment Program Proportional Amortization Method Applied Income Tax Credit And Other Tax Benefit Amortization Statement Of Cash Flows Extensible Enumeration Not Disclosed Flag | true |  |
Minimum [Member] |  |  |
Investment Program, Proportional Amortization Method, Elected, Commitment, Year to be Paid | 2025 |  |
Maximum [Member] |  |  |
Investment Program, Proportional Amortization Method, Elected, Commitment, Year to be Paid | 2041 |  |

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