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Note 4 - Allowance for Credit Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Balance	$ 11,974	$ 7,446	$ 7,446
Charge-offs	(2,601)	(1,228)	(3,993)
Recoveries	185	326	418
Provision for (recovery of) credit losses on loans	3,146	166	5,917
Balance	12,704	8,896	11,974
Individually evaluated	3,377	307	2,705
Collectively evaluated	9,327	8,589	9,269
Loans	994,720	952,499	969,430
Individually evaluated	5,993	3,116	6,763
Collectively evaluated	988,727	949,383	962,667
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance		2,186	2,186
Real Estate 1 [Member] | Construction and Land Development [Member]
Balance	312	546	546
Charge-offs	(4)	0	0
Recoveries	0	1	0
Provision for (recovery of) credit losses on loans	83	68	79
Balance	391	302	312
Individually evaluated	0	0	0
Collectively evaluated	391	302	312
Loans	61,446	50,405	52,680
Individually evaluated	34	39	38
Collectively evaluated	61,412	50,366	52,642
Real Estate 1 [Member] | Construction and Land Development [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance		(313)	(313)
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Balance	3,159	1,108	1,108
Charge-offs	(10)	0	(59)
Recoveries	8	13	47
Provision for (recovery of) credit losses on loans	(313)	(97)	654
Balance	2,844	2,433	3,159
Individually evaluated	0	0	0
Collectively evaluated	2,844	2,433	3,159
Loans	351,004	340,773	344,369
Individually evaluated	836	546	495
Collectively evaluated	350,168	340,227	343,874
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	1,409
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Balance	4,698	3,609	3,609
Charge-offs	0	0	(34)
Recoveries	2	13	14
Provision for (recovery of) credit losses on loans	422	(179)	(593)
Balance	5,122	5,145	4,698
Individually evaluated	0	0	0
Collectively evaluated	5,122	5,145	4,698
Loans	449,746	433,177	447,272
Individually evaluated	0	67	0
Collectively evaluated	449,746	433,110	447,272
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	1,702
Commercial and Industrial Loans [Member]
Balance	3,706	1,874	1,874
Charge-offs	(2,355)	(877)	(3,452)
Recoveries	67	145	145
Provision for (recovery of) credit losses on loans	2,805	165	5,526
Balance	4,223	920	3,706
Individually evaluated	3,377	307	2,705
Collectively evaluated	846	613	1,001
Loans	114,823	117,130	113,074
Individually evaluated	5,123	2,464	6,230
Collectively evaluated	109,700	114,666	106,844
Commercial and Industrial Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance		(387)	(387)
Consumer and Other Loans [Member]
Balance	99	309	309
Charge-offs	(232)	(351)	(448)
Recoveries	108	154	212
Provision for (recovery of) credit losses on loans	149	209	251
Balance	124	96	99
Individually evaluated	0	0	0
Collectively evaluated	124	96	99
Loans	17,701	11,014	12,035
Individually evaluated	0	0	0
Collectively evaluated	$ 17,701	11,014	12,035
Consumer and Other Loans [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Balance		$ (225)	$ (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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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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- Definition

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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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Amount of financing receivable collectively evaluated for credit loss. Excludes financing receivable individually evaluated for credit loss.

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- Definition

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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