Note 11 - Fair Values (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-Sale	$ 609,153	$ 617,092
Loan, Mortgage, Held-for-Sale, Fair Value Disclosure	$ 14,600	19,000
Real Estate Dependent Loans and Foreclosed Assets Estimated Selling Costs [Member]
Fair Value Inputs, Discount Factor	10.00%
Maximum [Member] \| Real Estate Dependent Loans and Foreclosed Assets [Member] \| Commercial Real Estate [Member]
Fair Value Inputs, Discount Factor	35.00%
Maximum [Member] \| Real Estate Dependent Loans and Foreclosed Assets [Member] \| Residential Real Estate [Member]
Fair Value Inputs, Discount Factor	50.00%
Minimum [Member] \| Real Estate Dependent Loans and Foreclosed Assets [Member] \| Commercial Real Estate [Member]
Fair Value Inputs, Discount Factor	25.00%
Minimum [Member] \| Real Estate Dependent Loans and Foreclosed Assets [Member] \| Residential Real Estate [Member]
Fair Value Inputs, Discount Factor	25.00%
Municipal General Obligation Bonds [Member]
Debt Securities, Available-for-Sale	$ 166,632	167,860
Fair Value, Inputs, Level 1 [Member]
Debt Securities, Available-for-Sale	0	0
Fair Value, Inputs, Level 3 [Member] \| Municipal General Obligation Bonds [Member] \| Maximum [Member]
Debt Securities, Available-for-Sale, Decrease Due to Scheduled Maturities		100
Available-for-Sale Securities [Member]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount, Ending Balance	$ 0	$ 0

Amount of increase in debt securities classified as available for sale due to schedule maturities.

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- Definition

Discount factor used to further reduce the balance sheet carrying amount of property or other assets.

+ References

No definition available.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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- Definition

Fair value portion of mortgage loans held-for-sale.

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- Definition

Amount of valuation and qualifying accounts and reserves.

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