Note 4 - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Beginning balance	$ 10,922	$ 9,383	$ 10,896	$ 9,468
Individually evaluated for impairment	0		0		$ 0
Charge-offs	(10)	(9)	(25)	(29)
Collectively evaluated for impairment	11,121		11,121		10,896
Recoveries	209	37	250	86
Financing Receivable, Allowance for Credit Loss	11,121	9,411	11,121	9,411	10,896
Provision for (reversal of) credit losses	0	0	0	(460)
Individually evaluated for impairment	0		0		0
Ending balance	11,121	9,411	11,121	9,411
Collectively evaluated for impairment	1,070,037		1,070,037		1,016,579
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	1,070,037		1,070,037		1,016,579
Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		346
Financing Receivable, Allowance for Credit Loss
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member]
Beginning balance	1,059	757	1,227	1,055
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	909		909		1,227
Recoveries	206	34	242	68
Financing Receivable, Allowance for Credit Loss	909	578	909	578	1,227
Provision for (reversal of) credit losses	(356)	(213)	(560)	(883)
Individually evaluated for impairment	0		0		0
Ending balance	909	578	909	578
Collectively evaluated for impairment	46,080		46,080		63,060
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	46,080		46,080		63,060
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		338
Financing Receivable, Allowance for Credit Loss
Commercial Real Estate Portfolio Segment [Member] \| Multifamily [Member]
Beginning balance	634	509	667	479
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	666		666		667
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss	666	514	666	514	667
Provision for (reversal of) credit losses	32	5	(1)	12
Individually evaluated for impairment	0		0		0
Ending balance	666	514	666	514
Collectively evaluated for impairment	57,371		57,371		54,045
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	57,371		57,371		54,045
Commercial Real Estate Portfolio Segment [Member] \| Multifamily [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		23
Financing Receivable, Allowance for Credit Loss
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Beginning balance	1,809	1,955	1,805	1,798
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	1,856		1,856		1,805
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss	1,856	1,944	1,856	1,944	1,805
Provision for (reversal of) credit losses	47	(11)	51	43
Individually evaluated for impairment	0		0		0
Ending balance	1,856	1,944	1,856	1,944
Collectively evaluated for impairment	221,790		221,790		210,407
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	221,790		221,790		210,407
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		103
Financing Receivable, Allowance for Credit Loss
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [member]
Beginning balance	4,620	4,344	4,805	4,211
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	4,764		4,764		4,805
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss	4,764	4,628	4,764	4,628	4,805
Provision for (reversal of) credit losses	144	284	(41)	392
Individually evaluated for impairment	0		0		0
Ending balance	4,764	4,628	4,764	4,628
Collectively evaluated for impairment	504,954		504,954		470,052
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	504,954		504,954		470,052
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		25
Financing Receivable, Allowance for Credit Loss
Commercial Real Estate Portfolio Segment [Member] \| Farmland Loans [Member]
Beginning balance	1,462	902	1,468	830
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	1,409		1,409		1,468
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss	1,409	901	1,409	901	1,468
Provision for (reversal of) credit losses	(53)	(1)	(59)	59
Individually evaluated for impairment	0		0		0
Ending balance	1,409	901	1,409	901
Collectively evaluated for impairment	94,712		94,712		96,188
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	94,712		94,712		96,188
Commercial Real Estate Portfolio Segment [Member] \| Farmland Loans [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		12
Financing Receivable, Allowance for Credit Loss
Commercial Portfolio Segment [Member]
Beginning balance	1,022	679	650	612
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	(12)
Collectively evaluated for impairment	1,177		1,177		650
Recoveries	0	0	0	12
Financing Receivable, Allowance for Credit Loss	1,177	600	1,177	600	650
Provision for (reversal of) credit losses	155	(79)	527	(114)
Individually evaluated for impairment	0		0		0
Ending balance	1,177	600	1,177	600
Collectively evaluated for impairment	74,868		74,868		65,218
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	74,868		74,868		65,218
Commercial Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		102
Financing Receivable, Allowance for Credit Loss
Consumer Portfolio Segment [Member]
Beginning balance	235	203	227	311
Individually evaluated for impairment	0		0		0
Charge-offs	(10)	(9)	(25)	(17)
Collectively evaluated for impairment	239		239		227
Recoveries	3	3	8	6
Financing Receivable, Allowance for Credit Loss	239	207	239	207	227
Provision for (reversal of) credit losses	11	10	29	27
Individually evaluated for impairment	0		0		0
Ending balance	239	207	239	207
Collectively evaluated for impairment	33,229		33,229		31,687
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	33,229		33,229		31,687
Consumer Portfolio Segment [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		0		(120)
Financing Receivable, Allowance for Credit Loss
Agriculture [Member]
Beginning balance	81	34	47	172
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	101		101		47
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss	101	39	101	39	47
Provision for (reversal of) credit losses	20	5	54	4
Individually evaluated for impairment	0		0		0
Ending balance	101	39	101	39
Collectively evaluated for impairment	37,033		37,033		25,922
Financing Receivable, before Allowance for Credit Loss, Fee and Loan in Process	$ 37,033		$ 37,033		$ 25,922
Agriculture [Member] \| Cumulative Effect, Period of Adoption, Adjustment [Member]
Beginning balance		$ 0		$ (137)
Financing Receivable, Allowance for Credit Loss

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

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Amount of allowance for credit loss on financing receivable evaluated on individual basis. Excludes financing receivable evaluated on collective basis.

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