Note 2 - Loans and Allowance for Credit Losses (Details Textual) $ in Thousands	3 Months Ended
Mar. 31, 2024 USD ($)	Mar. 31, 2023	Dec. 31, 2023 USD ($)
Financing Receivable, Accrued Interest, before Allowance for Credit Loss	$ 3,035		$ 3,032
Financing Receivable, Modifications, Number of Contracts	2	0
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	0
Real Estate Construction Portfolio Segment[Member] \| Construction, 1-4 Family Residential [Member]
Mortgage Loans in Process of Foreclosure, Amount	$ 126		$ 7

Number of financing receivables that have been modified by troubled debt restructurings.

No definition available.

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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- Definition

Amount, before allowance for credit loss, of accrued interest on financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 35
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-35

+ Details

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Period Type:	instant

- Details

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- Details

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