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Note 4 - Allowance for Credit Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Balance	$ 7,446	$ 5,710
Charge-offs	(3,993)	(529)
Recoveries	418	415
Financing Receivable, Credit Loss, Expense (Reversal)	5,917	1,850
Balance	11,974	7,446
Individually evaluated	2,705	888
Collectively evaluated	9,269	6,558
Loans	969,430	920,523
Individually evaluated	6,763	2,673
Collectively evaluated	962,667	917,850
Accounting Standards Update 2016-13 [Member]
Financing Receivable, Credit Loss, Expense (Reversal)	107
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	2,186
Balance		2,186
Real Estate 1 [Member] | Construction and Land Development [Member]
Balance	546	345
Charge-offs	0	0
Recoveries	0	10
Financing Receivable, Credit Loss, Expense (Reversal)	79	191
Balance	312	546
Individually evaluated	0	0
Collectively evaluated	312	546
Loans	52,680	51,840
Individually evaluated	38	1,045
Collectively evaluated	52,642	50,795
Real Estate 1 [Member] | Construction and Land Development [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	(313)
Balance		(313)
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Balance	1,108	1,077
Charge-offs	(59)	(6)
Recoveries	47	19
Financing Receivable, Credit Loss, Expense (Reversal)	654	18
Balance	3,159	1,108
Individually evaluated	0	0
Collectively evaluated	3,159	1,108
Loans	344,369	331,421
Individually evaluated	495	530
Collectively evaluated	343,874	330,891
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	1,409
Balance		1,409
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Balance	3,609	3,230
Charge-offs	(34)	0
Recoveries	14	15
Financing Receivable, Credit Loss, Expense (Reversal)	(593)	364
Balance	4,698	3,609
Individually evaluated	0	0
Collectively evaluated	4,698	3,609
Loans	447,272	418,456
Individually evaluated	0	13
Collectively evaluated	447,272	418,443
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	1,702
Balance		1,702
Commercial and Industrial Loans [Member]
Balance	1,874	718
Charge-offs	(3,452)	(32)
Recoveries	145	145
Financing Receivable, Credit Loss, Expense (Reversal)	5,526	1,043
Balance	3,706	1,874
Individually evaluated	2,705	888
Collectively evaluated	1,001	986
Loans	113,074	111,225
Individually evaluated	6,230	1,085
Collectively evaluated	106,844	110,140
Commercial and Industrial Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	(387)
Balance		(387)
Consumer and Other Loans [Member]
Balance	309	340
Charge-offs	(448)	(491)
Recoveries	212	226
Financing Receivable, Credit Loss, Expense (Reversal)	251	234
Balance	99	309
Individually evaluated	0	0
Collectively evaluated	99	309
Loans	12,035	7,581
Individually evaluated	0	0
Collectively evaluated	12,035	7,581
Consumer and Other Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance	$ (225)
Balance		$ (225)

X

- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

No definition available.

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X

- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

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- Definition

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

+ References

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- Definition

Amount of increase in allowance for credit loss on financing receivable from recovery.

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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The balance of financing receivables that were collectively evaluated for impairment.

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Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

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