Note 23 - Fair Value of Assets and Liabilities - Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques (Details) - Fair Value, Inputs, Level 3 [Member] $ in Thousands		Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member] | Impaired Loans [Member]
Impaired Loans, Fair Value Disclosure		$ 28,930	$ 3,998
Impaired Loans, Measurement Input		0.10	0.10
Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member] | Impaired Loans [Member] | Weighted Average [Member]
Impaired Loans, Measurement Input		0.10	0.10
Measurement Input, Comparability Adjustment [Member] | Valuation, Market Approach [Member] | Foreclosed Assets [Member]
Foreclosed assets	[1]		$ 32
Measurement Input, Prepayment Rate [Member] | Servicing Rights [Member]
Servicing Asset at Fair Value, Amount			$ 2,062
Measurement Input, Prepayment Rate [Member] | Servicing Rights [Member] | Weighted Average [Member]
Servicing Asset, Measurement Input			104
Measurement Input, Prepayment Rate [Member] | Servicing Rights [Member] | Minimum [Member]
Servicing Asset, Measurement Input			85
Measurement Input, Prepayment Rate [Member] | Servicing Rights [Member] | Maximum [Member]
Servicing Asset, Measurement Input			151
Measurement Input, Prepayment Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] | Servicing Rights [Member]
Servicing Asset at Fair Value, Amount		$ 1,874
Measurement Input, Prepayment Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] | Servicing Rights [Member] | Weighted Average [Member]
Servicing Asset, Measurement Input		169
Measurement Input, Prepayment Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] | Servicing Rights [Member] | Minimum [Member]
Servicing Asset, Measurement Input		100
Measurement Input, Prepayment Rate [Member] | Valuation Technique, Discounted Cash Flow [Member] | Servicing Rights [Member] | Maximum [Member]
Servicing Asset, Measurement Input		847
Measurement Input, Discount Rate [Member] | Servicing Rights [Member]
Servicing Asset, Measurement Input		10.5	11.1
Measurement Input, Discount Rate [Member] | Servicing Rights [Member] | Weighted Average [Member]
Servicing Asset, Measurement Input		10.5	11.1

[1] There were no discounts taken on the collateral that comprises the balance of foreclosed assets as of December 31, 2023.