Note 4 - Loans and Allowance for Credit Losses - Major Categories of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Loans	$ 620,479	$ 587,962
Loans	620,479	587,962
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	4,233	4,260	$ 4,081	$ 4,284
Deferred origination fees net of costs	777	709
Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss	615,469	582,993
Commercial Real Estate Portfolio Segment [Member]
Loans	416,202	398,126
Loans	416,202	398,126
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	2,946	2,481	2,550	2,448
Construction and Land Development [Member]
Loans	31,032	27,357
Loans	31,032	27,357
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	460	478	205	253
Residential Portfolio Segment [Member]
Loans	115,726	111,898
Loans	115,726	111,898
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	219	751	868	1,013
Commercial Portfolio Segment [Member]
Loans	56,975	50,405
Loans	56,975	50,405
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	608	513	438	494
Consumer Portfolio Segment [Member]
Loans	544	176
Loans	544	176
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	$ 0	$ 4	$ 3	$ 2

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Amount of fee received for commitment to originate or purchase financing receivable where likelihood of commitment being exercised is remote, to be recognized as service income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481598/310-20-45-2

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+ References

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: 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

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-5

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