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Note 3 - Loans and Allowance for Credit Losses on Loans - Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Beginning balance	$ 86,943	$ 79,374	$ 79,374
Loans, individually evaluated for impairment	25,322		30,898
Provision for credit losses	900	1,175
Charge-offs	(614)	(262)	(2,776)
Recoveries	1,585	610
Ending balance	88,814	80,897	86,943
Allowance for loans, individually evaluated for impairment	5,580		3,848
Real Estate [Member]
Loans, individually evaluated for impairment	24,124		26,204
Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	722		4,262
Other Collateral [Member]
Loans, individually evaluated for impairment	476		432
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	24,127	33,800	33,800
Loans, individually evaluated for impairment	15,937		15,246
Provision for credit losses	2,310	(767)
Charge-offs	0	0
Recoveries	18	20
Ending balance	26,455	33,053	24,127
Allowance for loans, individually evaluated for impairment	2,798		1,839
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	15,937		15,246
Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Commercial and Industrial Portfolio Segment [Member]
Beginning balance	27,780	20,854	20,854
Loans, individually evaluated for impairment	1,948		5,427
Provision for credit losses	(631)	(1,114)
Charge-offs	(260)	(23)
Recoveries	1,417	457
Ending balance	28,306	20,174	27,780
Allowance for loans, individually evaluated for impairment	889		655
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	1,148		1,089
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	722		4,262
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	78		76
Residential Real Estate Portfolio Segment [Member]
Beginning balance	19,622	13,598	13,598
Loans, individually evaluated for impairment	6,954		9,488
Provision for credit losses	(1,650)	2,958
Charge-offs	(50)	(14)
Recoveries	3	15
Ending balance	17,925	16,557	19,622
Allowance for loans, individually evaluated for impairment	1,863		1,300
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	6,954		9,488
Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Construction and Development [Member]
Beginning balance	10,981	7,593	7,593
Loans, individually evaluated for impairment	80		311
Provision for credit losses	406	(134)
Charge-offs	0	0	0
Recoveries	0	0
Ending balance	11,387	7,459	10,981
Allowance for loans, individually evaluated for impairment	0		20
Construction and Development [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	80		311
Construction and Development [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Construction and Development [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Consumer Portfolio Segment [Member]
Beginning balance	2,531	1,407	1,407
Loans, individually evaluated for impairment	398		356
Provision for credit losses	403	192
Charge-offs	(203)	(210)	(785)
Recoveries	113	111
Ending balance	2,844	1,500	2,531
Allowance for loans, individually evaluated for impairment	30		34
Consumer Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0
Consumer Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Consumer Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	398		356
Finance Leases Portfolio Segment [Member]
Beginning balance	370	220	220
Loans, individually evaluated for impairment	0		0
Provision for credit losses	(29)	12
Charge-offs	0	0	0
Recoveries	0	0
Ending balance	341	232	370
Allowance for loans, individually evaluated for impairment	0		0
Finance Leases Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0
Finance Leases Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Finance Leases Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Beginning balance	13,935	22,133	22,133
Loans, individually evaluated for impairment	11,547		11,699
Provision for credit losses	663	(326)
Charge-offs	0	0	0
Recoveries	18	16
Ending balance	14,616	21,823	13,935
Allowance for loans, individually evaluated for impairment	2,041		1,075
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	11,547		11,699
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Non-owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Beginning balance	5,154	4,282	4,282
Loans, individually evaluated for impairment	2,111		2,974
Provision for credit losses	(667)	449
Charge-offs	0	0	0
Recoveries	0	0
Ending balance	4,487	4,731	5,154
Allowance for loans, individually evaluated for impairment	755		852
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	2,111		2,974
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Non-owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member]
Beginning balance	10,192	11,667	11,667
Loans, individually evaluated for impairment	4,390		3,547
Provision for credit losses	1,647	(441)
Charge-offs	0	0	0
Recoveries	0	4
Ending balance	11,839	11,230	10,192
Allowance for loans, individually evaluated for impairment	757		764
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	4,390		3,547
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Owner Occupied [Member] | Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member]
Beginning balance	14,468	9,316	9,316
Loans, individually evaluated for impairment	4,843		6,514
Provision for credit losses	(983)	2,509
Charge-offs	(50)	(14)	(356)
Recoveries	3	15
Ending balance	13,438	11,826	14,468
Allowance for loans, individually evaluated for impairment	1,108		448
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	4,843		6,514
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Owner Occupied [Member] | Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Term [Member] | Commercial and Industrial Portfolio Segment [Member]
Beginning balance	21,284	14,359	14,359
Loans, individually evaluated for impairment	1,413		4,878
Provision for credit losses	(764)	(673)
Charge-offs	(260)	(23)	(748)
Recoveries	1,417	253
Ending balance	21,677	13,916	21,284
Allowance for loans, individually evaluated for impairment	753		516
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	813		740
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	522		4,062
Term [Member] | Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	78		76
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member]
Beginning balance	6,496	6,495	6,495
Loans, individually evaluated for impairment	535		549
Provision for credit losses	133	(441)
Charge-offs	0	0	(555)
Recoveries	0	204
Ending balance	6,629	6,258	6,496
Allowance for loans, individually evaluated for impairment	136		139
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	335		349
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	200		200
Lines of Credit [Member] | Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Home Equity Line of Credit [Member]
Beginning balance	1,277	1,660	1,660
Loans, individually evaluated for impairment	5		70
Provision for credit losses	13	4
Charge-offs	(10)	0
Recoveries	0	2
Ending balance	1,280	1,666	1,277
Allowance for loans, individually evaluated for impairment	0		0
Home Equity Line of Credit [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	5		70
Home Equity Line of Credit [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Home Equity Line of Credit [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member]
Beginning balance	255	242	242
Loans, individually evaluated for impairment	0		0
Provision for credit losses	78	24
Charge-offs	(91)	(15)	(225)
Recoveries	34	5
Ending balance	276	$ 256	255
Allowance for loans, individually evaluated for impairment	0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0
Credit Card Receivable [Member] | Commercial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	$ 0		$ 0

X

- Definition

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

+ References

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

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