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Note 4 - Allowance for Credit Losses - Allowance by Impairment Methodology and Loans by Impairment Methodology (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Balance	$ 16,400	$ 11,974	$ 11,974
Charge-offs	(2,490)	(414)	(4,034)
Recoveries	90	52	284
Provision for (recovery of) credit losses on loans	735	991
Balance	14,735	12,603	16,400
Individually evaluated	1,609		3,079
Collectively evaluated	13,126
Loans	1,449,950	972,974	1,466,595
Individually evaluated	4,808	8,011	6,971
Collectively evaluated	1,445,142	964,963	1,459,624
Provision for credit losses on loans	735	991
Collectively evaluated for impairment		9,034	13,321
Individually evaluated		3,569
Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			3,961
Provision for credit losses on loans			3,961
Financial Asset Acquired and No Credit Deterioration [Member]
Loans	573,562		603,046
Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			386
Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			3,829
Provision for credit losses on loans			3,829
Real Estate 1 [Member] | Construction and Land Development [Member]
Balance	585	312	312
Charge-offs	(22)	(4)	(4)
Recoveries	0	0	0
Provision for (recovery of) credit losses on loans	(7)	47
Balance	556	355	585
Individually evaluated	0		0
Collectively evaluated	556
Loans	81,596	53,364	84,480
Individually evaluated	75	37	50
Collectively evaluated	81,521	53,327	84,430
Provision for credit losses on loans	(7)	47
Collectively evaluated for impairment		355	585
Individually evaluated		0
Real Estate 1 [Member] | Construction and Land Development [Member] | Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			148
Provision for credit losses on loans			148
Real Estate 1 [Member] | Construction and Land Development [Member] | Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			11
Real Estate 1 [Member] | Construction and Land Development [Member] | Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			118
Provision for credit losses on loans			118
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member]
Balance	4,266	3,159	3,159
Charge-offs	(3)	(10)	(38)
Recoveries	3	4	22
Provision for (recovery of) credit losses on loans	972	(396)
Balance	5,238	2,757	4,266
Individually evaluated	0		0
Collectively evaluated	5,238
Loans	549,502	347,014	547,167
Individually evaluated	2,071	772	2,148
Collectively evaluated	547,431	346,242	545,019
Provision for credit losses on loans	972	(396)
Collectively evaluated for impairment		2,757	4,266
Individually evaluated		0
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			(360)
Provision for credit losses on loans			(360)
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			173
Real Estate 1 [Member] | Secured by Multi-family Residential Properties [Member] | Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			1,310
Provision for credit losses on loans			1,310
Real Estate 1 [Member] | Other Real Estate Loans [Member]
Balance	7,462	4,698	4,698
Charge-offs	0	0	0
Recoveries	1	1	3
Provision for (recovery of) credit losses on loans	(1,755)	225
Balance	5,708	4,924	7,462
Individually evaluated	0		0
Collectively evaluated	5,708
Loans	665,682	445,085	672,162
Individually evaluated	0	0	0
Collectively evaluated	665,682	445,085	672,162
Provision for credit losses on loans	(1,755)	225
Collectively evaluated for impairment		4,924	7,462
Individually evaluated		0
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			1,190
Provision for credit losses on loans			1,190
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			201
Real Estate 1 [Member] | Other Real Estate Loans [Member] | Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			1,370
Provision for credit losses on loans			1,370
Commercial and Industrial Loans [Member]
Balance	3,927	3,706	3,706
Charge-offs	(2,343)	(317)	(3,699)
Recoveries	33	6	111
Provision for (recovery of) credit losses on loans	1,388	1,098
Balance	3,005	4,493	3,927
Individually evaluated	1,609		3,079
Collectively evaluated	1,396
Loans	132,396	113,562	141,333
Individually evaluated	2,662	7,202	4,773
Collectively evaluated	129,734	106,360	136,560
Provision for credit losses on loans	1,388	1,098
Collectively evaluated for impairment		924	848
Individually evaluated		3,569
Commercial and Industrial Loans [Member] | Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			3,665
Provision for credit losses on loans			3,665
Commercial and Industrial Loans [Member] | Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			1
Commercial and Industrial Loans [Member] | Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			143
Provision for credit losses on loans			143
Consumer and Other Loans [Member]
Balance	160	99	99
Charge-offs	(122)	(83)	(293)
Recoveries	53	41	148
Provision for (recovery of) credit losses on loans	137	17
Balance	228	74	160
Individually evaluated	0		0
Collectively evaluated	228
Loans	20,774	13,949	21,453
Individually evaluated	0	0	0
Collectively evaluated	20,774	13,949	21,453
Provision for credit losses on loans	$ 137	17
Collectively evaluated for impairment		74	160
Individually evaluated		$ 0
Consumer and Other Loans [Member] | Loans Before Business Acquisitions [Member]
Provision for (recovery of) credit losses on loans			(682)
Provision for credit losses on loans			(682)
Consumer and Other Loans [Member] | Touchstone Bankshares, Inc [Member]
Initial Allowance on PCD Touchstone loans			0
Consumer and Other Loans [Member] | Touchstone Bankshares, Inc [Member] | Financial Asset Acquired and No Credit Deterioration [Member]
Provision for (recovery of) credit losses on loans			888
Provision for credit losses on loans			$ 888

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

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