Note 3 - Loans and Allowance for Credit Losses - Loans and Allowance for Loan Losses by Evaluation Method (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Allowance for loan losses	$ 10,328	$ 9,094	$ 10,181	$ 8,225
Loans, individually evaluated	10,713	10,544
Loans, collectively evaluated	991,528	846,631
Loans	1,002,241	857,175
Individually Evaluated [Member]
Allowance for loan losses	85	572
Collectively Evaluated [Member]
Allowance for loan losses	10,243	8,522
Real Estate Construction Portfolio Segment[Member]
Allowance for loan losses	461	408	562	450
Loans, individually evaluated	0	286
Loans, collectively evaluated	71,920	55,093
Loans	71,920	55,379
Real Estate Construction Portfolio Segment[Member] \| Individually Evaluated [Member]
Allowance for loan losses	0	0
Real Estate Construction Portfolio Segment[Member] \| Collectively Evaluated [Member]
Allowance for loan losses	461	408
Consumer Real Estate Portfolio Segment [Member]
Allowance for loan losses	3,956	3,162	3,193	2,199
Loans, individually evaluated	591	1,183
Loans, collectively evaluated	305,421	240,381
Loans	306,012	241,564
Consumer Real Estate Portfolio Segment [Member] \| Individually Evaluated [Member]
Allowance for loan losses	34	74
Consumer Real Estate Portfolio Segment [Member] \| Collectively Evaluated [Member]
Allowance for loan losses	3,922	3,088
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses	4,261	3,576	4,167	3,642
Loans, individually evaluated	10,122	8,805
Loans, collectively evaluated	462,896	410,325
Loans	473,018	419,130
Commercial Real Estate Portfolio Segment [Member] \| Individually Evaluated [Member]
Allowance for loan losses	51	367
Commercial Real Estate Portfolio Segment [Member] \| Collectively Evaluated [Member]
Allowance for loan losses	4,210	3,209
Commercial Non Real Estate Segment [Member]
Allowance for loan losses	659	682	839	930
Loans, individually evaluated	0	227
Loans, collectively evaluated	52,699	41,328
Loans	52,699	41,555
Commercial Non Real Estate Segment [Member] \| Individually Evaluated [Member]
Allowance for loan losses	0	126
Commercial Non Real Estate Segment [Member] \| Collectively Evaluated [Member]
Allowance for loan losses	659	556
Public Sector and IDA Portfolio Segment[Member]
Allowance for loan losses	338	333	314	319
Loans, individually evaluated	0	0
Loans, collectively evaluated	58,109	60,551
Loans	58,109	60,551
Public Sector and IDA Portfolio Segment[Member] \| Individually Evaluated [Member]
Allowance for loan losses	0	0
Public Sector and IDA Portfolio Segment[Member] \| Collectively Evaluated [Member]
Allowance for loan losses	338	333
Consumer Non Real Estate Portfolio Segment [Member]
Allowance for loan losses	570	583	621	506
Loans, individually evaluated	0	43
Loans, collectively evaluated	40,483	38,953
Loans	40,483	38,996
Consumer Non Real Estate Portfolio Segment [Member] \| Individually Evaluated [Member]
Allowance for loan losses	0	5
Consumer Non Real Estate Portfolio Segment [Member] \| Collectively Evaluated [Member]
Allowance for loan losses	570	578
Unallocated Financing Receivables [Member]
Allowance for loan losses	83	350	$ 485	$ 179
Unallocated Financing Receivables [Member] \| Individually Evaluated [Member]
Allowance for loan losses	0	0
Unallocated Financing Receivables [Member] \| Collectively Evaluated [Member]
Allowance for loan losses	$ 83	$ 350

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

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