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Note 4 - Loans, Allowance for Credit Losses and Other Real Estate Owned (Details Textual) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Financing Receivable, Allowance for Credit Loss	$ 13,914	$ 15,879	$ 14,780	$ 16,867
Financing Receivable, Modified, Commitment to Lend	0		0
Financing Receivable, Modified in Period, Amount	0	0
Financing Receivable, Held-for-Sale	0		0
Other Real Estate	0		0
Mortgage Loans in Process of Foreclosure, Amount	0		0
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	$ 6,165	5,758	$ 6,034	5,925
Number of Collateral-dependent Loans	7		7
Collateral-dependent Loans, Balance	$ 9,400		$ 17,600
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss	3,065	$ 6,092	4,280	$ 6,455
Collateral-dependent Loans, Balance	273		503
Nonperforming Financial Instruments [Member]
Financing Receivable, Allowance for Credit Loss	$ 0		$ 0

X

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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X

- Definition

Amortized cost of financing receivable modified during period for debtor experiencing financial difficulty.

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X

- Definition

Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable.

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X

- Definition

Amount, before valuation allowance, of financing receivable classified as held-for-sale.

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X

- Definition

Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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X

- Definition

Carrying amount of other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This does not include real estate assets taken in settlement of troubled loans through surrender or foreclosure.

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X

- Definition

Represents the balance of collateral-dependent loans as of the specified date. A loan is considered collateral-dependent when the borrower is experiencing financial difficult and repayment is expected to be provided substantially through the operation or sale of the collateral.

+ References

No definition available.

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X

- Definition

Represents the number of collateral-dependent loans as of the specified date.

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