Note 4 - Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Beginning balance	$ 11,448	$ 10,922	$ 11,460	$ 10,896
Individually evaluated for impairment	0		0		$ 0
Charge-offs	(20)	(10)	(36)	(25)
Collectively evaluated for impairment	11,430		11,430		11,460
Recoveries	2	209	6	250
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	11,430	11,121	11,430	11,121	11,460
Provision for (reversal of) credit losses	0	0	0	0
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	1,109,856		1,109,856		1,106,535
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	1,109,856		1,109,856		1,106,535
Ending balance	11,430	11,121	11,430	11,121
Commercial Real Estate Portfolio Segment [Member] \| Construction and Land [Member]
Beginning balance	387	1,059	258	1,227
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	633		633		258
Recoveries	0	206	0	242
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	633	909	633	909	258
Provision for (reversal of) credit losses	246	(356)	375	(560)
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	31,090		31,090		17,812
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	31,090		31,090		17,812
Ending balance	633	909	633	909
Commercial Real Estate Portfolio Segment [Member] \| Multifamily [Member]
Beginning balance	731	634	737	667
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	699		699		737
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	699	666	699	666	737
Provision for (reversal of) credit losses	(32)	32	(38)	(1)
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	86,933		86,933		87,768
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	86,933		86,933		87,768
Ending balance	699	666	699	666
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied [Member]
Beginning balance	1,507	1,809	1,503	1,805
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	1,396		1,396		1,503
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	1,396	1,856	1,396	1,856	1,503
Provision for (reversal of) credit losses	(111)	47	(107)	51
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	222,252		222,252		229,961
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	222,252		222,252		229,961
Ending balance	1,396	1,856	1,396	1,856
Commercial Real Estate Portfolio Segment [Member] \| Non-owner Occupied [member]
Beginning balance	6,332	4,620	6,401	4,805
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	6,245		6,245		6,401
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	6,245	4,764	6,245	4,764	6,401
Provision for (reversal of) credit losses	(87)	144	(156)	(41)
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	524,978		524,978		528,769
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	524,978		524,978		528,769
Ending balance	6,245	4,764	6,245	4,764
Commercial Real Estate Portfolio Segment [Member] \| Farmland Loans [Member]
Beginning balance	1,614	1,462	1,665	1,468
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	1,546		1,546		1,665
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	1,546	1,409	1,546	1,409	1,665
Provision for (reversal of) credit losses	(68)	(53)	(119)	(59)
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	92,227		92,227		95,348
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	92,227		92,227		95,348
Ending balance	1,546	1,409	1,546	1,409
Commercial Portfolio Segment [Member]
Beginning balance	608	1,022	645	650
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	599		599		645
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	599	1,177	599	1,177	645
Provision for (reversal of) credit losses	(9)	155	(46)	527
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	79,422		79,422		83,572
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	79,422		79,422		83,572
Ending balance	599	1,177	599	1,177
Consumer Portfolio Segment [Member]
Beginning balance	169	235	175	227
Individually evaluated for impairment	0		0		0
Charge-offs	(20)	(10)	(36)	(25)
Collectively evaluated for impairment	172		172		175
Recoveries	2	3	6	8
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	172	239	172	239	175
Provision for (reversal of) credit losses	21	11	27	29
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	33,079		33,079		33,969
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	33,079		33,079		33,969
Ending balance	172	239	172	239
Agriculture [Member]
Beginning balance	100	81	76	47
Individually evaluated for impairment	0		0		0
Charge-offs	0	0	0	0
Collectively evaluated for impairment	140		140		76
Recoveries	0	0	0	0
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest	140	101	140	101	76
Provision for (reversal of) credit losses	40	20	64	54
Individually evaluated for impairment	0		0		0
Collectively evaluated for impairment	39,875		39,875		29,336
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process	39,875		39,875		$ 29,336
Ending balance	$ 140	$ 101	$ 140	$ 101

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

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

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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