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Note 7 - Loans and Related Allowance for Credit Losses - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Beginning balance	$ 21,795	$ 20,591	$ 21,693	$ 14,438	$ 14,438
Charge-offs	(1,426)		(1,439)	(301)
Recoveries	44	41	154	214
Provision	2,113	379	2,118	1,253
Ending balance	22,526	20,986	22,526	20,986	21,693
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				5,382	5,382
Charge-offs		(25)
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member]
Beginning balance	2,058	3,413	2,668	2,203	2,203
Charge-offs	(45)		(45)	(46)	(46)
Recoveries	0	1	11	4
Provision	177	(711)	(444)	(269)
Ending balance	2,190	2,703	2,190	2,703	2,668
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				811	811
Charge-offs		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member]
Beginning balance	7,981	3,846	4,480	5,597	5,597
Charge-offs	(1,341)		(1,341)	0	0
Recoveries	0	0	0	0
Provision	1,716	231	5,217	(314)
Ending balance	8,356	4,077	8,356	4,077	4,480
Commercial Real Estate Portfolio Segment [Member] | Non-owner occupied Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				(1,206)	(1,206)
Charge-offs		0
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member]
Beginning balance	1,268	1,279	1,796	662	662
Charge-offs	0		0	0	0
Recoveries	0	0	0	0
Provision	125	495	(403)	521
Ending balance	1,393	1,774	1,393	1,774	1,796
Commercial Real Estate Portfolio Segment [Member] | Multifamily Loan [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				591	591
Charge-offs		0
Residential Portfolio Segment [Member]
Beginning balance	4,891	5,114	5,450	2,047	2,047
Charge-offs	0		0	(108)	(108)
Recoveries	0	0	0	0
Provision	219	187	(340)	618
Ending balance	5,110	5,301	5,110	5,301	5,450
Residential Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				2,744	2,744
Charge-offs		0
Commercial And Industrial [Member]
Beginning balance	2,430	4,104	4,377	1,483	1,483
Charge-offs	(35)		(35)	(85)	(85)
Recoveries	9	10	24	30
Provision	8	106	(1,954)	447
Ending balance	2,412	4,195	2,412	4,195	4,377
Commercial And Industrial [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				2,320	2,320
Charge-offs		(25)
Home Equity Lines of Credit [Member]
Beginning balance	813	723	750	1,753	1,753
Charge-offs	0		(7)	0	0
Recoveries	0	0	1	70
Provision	56	3	125	(66)
Ending balance	869	726	869	726	750
Home Equity Lines of Credit [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				(1,031)	(1,031)
Charge-offs		0
Construction and Other [Member]
Beginning balance	2,290	1,884	1,990	609	609
Charge-offs	0		0	0	0
Recoveries	0	0	0	0
Provision	(159)	146	141	465
Ending balance	2,131	2,030	2,131	2,030	1,990
Construction and Other [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				956	956
Charge-offs		0
Consumer Portfolio Segment [Member]
Beginning balance	64	228	182	84	84
Charge-offs	(5)		(11)	(62)	(63)
Recoveries	35	30	118	110
Provision	(29)	(78)	(224)	(149)
Ending balance	$ 65	180	$ 65	180	182
Consumer Portfolio Segment [Member] | Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance				$ 197	$ 197
Charge-offs		$ 0

X

- Definition

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

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- Definition

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

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