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Note 4 - Loans and Allowance for Credit Losses on Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Evaluation Method (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Beginning balance	$ 66,362	$ 59,424	$ 53,898	$ 51,920
Initial Allowance on PCD Loans	0	0	9,950	6,757
Provision for credit losses	4,103	(1,000)	6,082	2,497
Charge-offs	(926)	(2,215)	(1,705)	(5,779)
Recoveries	544	324	1,858	1,138
Ending balance	70,083	56,533	70,083	56,533
Loans, individually evaluated for impairment	22,970		22,970		$ 12,562
Allowance for loans, individually evaluated for impairment	3,632		3,632		1,768
Real Estate [Member]
Loans, individually evaluated for impairment	18,747		18,747		11,517
Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	2,492		2,492		798
Other Collateral [Member]
Loans, individually evaluated for impairment	1,731		1,731		247
Home Equity Line of Credit [Member]
Beginning balance	1,521	1,230	1,044	895
Initial Allowance on PCD Loans	0	0	2	147
Provision for credit losses	105	(173)	580	14
Charge-offs	0	0	0	0
Recoveries	0	0	0	1
Ending balance	1,626	1,057	1,626	1,057
Loans, individually evaluated for impairment	524		524		646
Allowance for loans, individually evaluated for impairment	0		0		0
Home Equity Line of Credit [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	524		524		646
Home Equity Line of Credit [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Home Equity Line of Credit [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member]
Beginning balance	30,565	29,295	25,555	26,379
Initial Allowance on PCD Loans	0	0	5,629	3,603
Provision for credit losses	275	(1,451)	(359)	337
Charge-offs	(37)	(1,361)	(78)	(4,426)
Recoveries	153	6	209	596
Ending balance	30,956	26,489	30,956	26,489
Loans, individually evaluated for impairment	11,882		11,882		8,372
Allowance for loans, individually evaluated for impairment	1,847		1,847		1,652
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	11,882		11,882		8,372
Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Beginning balance	20,723	19,747	15,960	19,396
Initial Allowance on PCD Loans	0	0	3,508	1,491
Provision for credit losses	502	(3,582)	1,744	(1,692)
Charge-offs	(37)	0	(37)	(3,065)
Recoveries	0	6	13	41
Ending balance	21,188	16,171	21,188	16,171
Loans, individually evaluated for impairment	6,734		6,734		720
Allowance for loans, individually evaluated for impairment	998		998		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	6,734		6,734		720
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Beginning balance	9,842	9,548	9,595	6,983
Initial Allowance on PCD Loans	0	0	2,121	2,112
Provision for credit losses	(227)	2,131	(2,103)	2,029
Charge-offs	0	(1,361)	(41)	(1,361)
Recoveries	153	0	196	555
Ending balance	9,768	10,318	9,768	10,318
Loans, individually evaluated for impairment	5,148		5,148		7,652
Allowance for loans, individually evaluated for impairment	849		849		1,652
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	5,148		5,148		7,652
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial and Industrial Portfolio Segment [Member]
Loans, individually evaluated for impairment	6,232		6,232		798
Allowance for loans, individually evaluated for impairment	1,278		1,278		0
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	2,275		2,275		0
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	2,492		2,492		798
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	1,465		1,465		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Beginning balance	12,342	9,748	8,577	8,970
Initial Allowance on PCD Loans	0	0	1,358	1,022
Provision for credit losses	2,055	253	3,796	156
Charge-offs	(466)	(240)	(594)	(409)
Recoveries	232	5	1,026	27
Ending balance	14,163	9,766	14,163	9,766
Loans, individually evaluated for impairment	1,697		1,697		598
Allowance for loans, individually evaluated for impairment	390		390		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	342		342		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	819		819		598
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	536		536		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Beginning balance	5,000	5,240	4,802	3,614
Initial Allowance on PCD Loans	0	0	1,874	1,755
Provision for credit losses	203	(328)	(1,437)	(457)
Charge-offs	(99)	0	(135)	0
Recoveries	0	0	0	0
Ending balance	5,104	4,912	5,104	4,912
Loans, individually evaluated for impairment	4,535		4,535		200
Allowance for loans, individually evaluated for impairment	888		888		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	1,933		1,933		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	1,673		1,673		200
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	929		929		0
Total Commercial and Industrial Portfolio Segment [Member]
Beginning balance	17,342	14,988	13,379	12,584
Initial Allowance on PCD Loans	0	0	3,232	2,777
Provision for credit losses	2,258	(75)	2,359	(301)
Charge-offs	(565)	(240)	(729)	(409)
Recoveries	232	5	1,026	27
Ending balance	19,267	14,678	19,267	14,678
Residential Real Estate Portfolio Segment [Member]
Beginning balance	9,178	7,772	7,993	5,207
Initial Allowance on PCD Loans	0	0	590	230
Provision for credit losses	569	526	1,109	2,899
Charge-offs	(17)	(340)	(30)	(383)
Recoveries	11	29	79	34
Ending balance	9,741	7,987	9,741	7,987
Loans, individually evaluated for impairment	3,453		3,453		2,499
Allowance for loans, individually evaluated for impairment	479		479		116
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	3,453		3,453		2,499
Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member]
Beginning balance	3,190	3,422	3,677	1,818
Initial Allowance on PCD Loans	0	0	0	88
Provision for credit losses	146	106	(349)	1,620
Charge-offs	0	0	0	0
Recoveries	9	2	17	4
Ending balance	3,345	3,530	3,345	3,530
Loans, individually evaluated for impairment	424		424		502
Allowance for loans, individually evaluated for impairment	116		116		116
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	424		424		502
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member]
Beginning balance	5,988	4,350	4,316	3,389
Initial Allowance on PCD Loans	0	0	590	142
Provision for credit losses	423	420	1,458	1,279
Charge-offs	(17)	(340)	(30)	(383)
Recoveries	2	27	62	30
Ending balance	6,396	4,457	6,396	4,457
Loans, individually evaluated for impairment	3,029		3,029		1,997
Allowance for loans, individually evaluated for impairment	363		363		0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	3,029		3,029		1,997
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Construction and Development [Member]
Beginning balance	6,214	5,193	4,789	6,119
Initial Allowance on PCD Loans	0	0	419	0
Provision for credit losses	731	45	1,809	(884)
Charge-offs	0	0	(72)	0
Recoveries	0	0	0	3
Ending balance	6,945	5,238	6,945	5,238
Loans, individually evaluated for impairment	613		613		0
Allowance for loans, individually evaluated for impairment	9		9		0
Construction and Development [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	613		613		0
Construction and Development [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Construction and Development [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Consumer Portfolio Segment [Member]
Beginning balance	1,113	572	772	340
Initial Allowance on PCD Loans	0	0	78	0
Provision for credit losses	162	145	565	471
Charge-offs	(307)	(274)	(796)	(561)
Recoveries	148	284	497	477
Ending balance	1,116	727	1,116	727
Loans, individually evaluated for impairment	266		266		247
Allowance for loans, individually evaluated for impairment	19		19		0
Consumer Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0		0
Consumer Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Consumer Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	266		266		247
Finance Leases Portfolio Segment [Member]
Beginning balance	221	232	204	261
Initial Allowance on PCD Loans	0	0	0	0
Provision for credit losses	(10)	(38)	7	(67)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	211	194	211	194
Loans, individually evaluated for impairment	0		0		0
Allowance for loans, individually evaluated for impairment	0		0		0
Finance Leases Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0		0
Finance Leases Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Finance Leases Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member]
Beginning balance	208	142	162	135
Initial Allowance on PCD Loans	0	0	0	0
Provision for credit losses	13	21	12	28
Charge-offs	0	0	0	0
Recoveries	0	0	47	0
Ending balance	221	$ 163	221	$ 163
Loans, individually evaluated for impairment	0		0		0
Allowance for loans, individually evaluated for impairment	0		0		0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	0		0		0
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	$ 0		$ 0		$ 0

X

- Definition

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

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Amount of increase in allowance for credit loss on financing receivable from purchase of loan. Excludes financing receivable purchased with credit deterioration, loan acquired through business combination or acquisition, and net investment in lease.

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