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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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Amount of impairment loss for investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under tax credit program not meeting condition for accounting under proportional amortization method.

+ References

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-Topic 740
-SubTopic 323
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (f)
-Publisher FASB
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Amount, before amortization expense, of income tax credit and other tax benefit generated by investment under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under tax credit program not meeting condition for accounting under proportional amortization method.

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Year in which contingent commitment for investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method, is expected to be paid, in YYYY format. Includes, but is not limited to, contingent commitment related to investment under tax credit program not meeting condition for accounting under proportional amortization method.

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Amount of investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, investment under program not meeting condition for accounting under proportional amortization method.

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Amount of commitment and contingent commitment, including amount of delayed equity contribution, for investment that generates income tax credit and other income tax benefit under tax credit program elected to be accounted for using proportional amortization method. Includes, but is not limited to, commitment and contingent commitment related to investment under tax credit program not meeting condition for accounting under proportional amortization method.

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