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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		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Beginning balance	$ 67,067	$ 50,714	$ 53,898	$ 51,920
Initial Allowance on PCD Loans	0	6,757	9,950	6,757
Provision for credit losses	(700)	4,697	1,979	3,497
Charge-offs	(370)	(3,442)	(779)	(3,564)
Recoveries	365	698	1,314	814
Ending balance	66,362	59,424	66,362	59,424
Loans, individually evaluated for impairment	21,089		21,089		$ 12,562
Allowance for loans, individually evaluated for impairment	3,487		3,487		1,768
Real Estate [Member]
Loans, individually evaluated for impairment	19,059		19,059		11,517
Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	1,517		1,517		798
Other Collateral [Member]
Loans, individually evaluated for impairment	513		513		247
Home Equity Line of Credit [Member]
Beginning balance	1,467	843	1,044	895
Initial Allowance on PCD Loans	0	147	2	147
Provision for credit losses	54	239	475	187
Charge-offs	0	0	0	0
Recoveries	0	1	0	1
Ending balance	1,521	1,230	1,521	1,230
Loans, individually evaluated for impairment	378		378		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	378		378		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	31,946	27,127	25,555	26,379
Initial Allowance on PCD Loans	0	3,603	5,629	3,603
Provision for credit losses	(1,363)	1,071	(634)	1,788
Charge-offs	(41)	(3,065)	(41)	(3,065)
Recoveries	23	559	56	590
Ending balance	30,565	29,295	30,565	29,295
Loans, individually evaluated for impairment	7,817		7,817		8,372
Allowance for loans, individually evaluated for impairment	1,439		1,439		1,652
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	7,817		7,817		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	20,620	20,062	15,960	19,396
Initial Allowance on PCD Loans	0	1,491	3,508	1,491
Provision for credit losses	101	1,255	1,242	1,890
Charge-offs	0	(3,065)	0	(3,065)
Recoveries	2	4	13	35
Ending balance	20,723	19,747	20,723	19,747
Loans, individually evaluated for impairment	4,216		4,216		720
Allowance for loans, individually evaluated for impairment	588		588		0
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	4,216		4,216		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	11,326	7,065	9,595	6,983
Initial Allowance on PCD Loans	0	2,112	2,121	2,112
Provision for credit losses	(1,464)	(184)	(1,876)	(102)
Charge-offs	(41)	0	(41)	0
Recoveries	21	555	43	555
Ending balance	9,842	9,548	9,842	9,548
Loans, individually evaluated for impairment	3,601		3,601		7,652
Allowance for loans, individually evaluated for impairment	851		851		1,652
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	3,601		3,601		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	4,346		4,346		798
Allowance for loans, individually evaluated for impairment	1,124		1,124		0
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	2,545		2,545		0
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	1,517		1,517		798
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	284		284		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member]
Beginning balance	11,108	8,469	8,577	8,970
Initial Allowance on PCD Loans	0	1,022	1,358	1,022
Provision for credit losses	1,174	355	1,741	(97)
Charge-offs	(15)	(114)	(128)	(169)
Recoveries	75	16	794	22
Ending balance	12,342	9,748	12,342	9,748
Loans, individually evaluated for impairment	1,306		1,306		598
Allowance for loans, individually evaluated for impairment	354		354		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	537		537		0
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	485		485		598
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	284		284		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member]
Beginning balance	6,508	2,983	4,802	3,614
Initial Allowance on PCD Loans	0	1,755	1,874	1,755
Provision for credit losses	(1,508)	502	(1,640)	(129)
Charge-offs	0	0	(36)	0
Recoveries	0	0	0	0
Ending balance	5,000	5,240	5,000	5,240
Loans, individually evaluated for impairment	3,040		3,040		200
Allowance for loans, individually evaluated for impairment	770		770		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	2,008		2,008		0
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Accounts Receivable and Equipment [Member]
Loans, individually evaluated for impairment	1,032		1,032		200
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Other Collateral [Member]
Loans, individually evaluated for impairment	0		0		0
Total Commercial and Industrial Portfolio Segment [Member]
Beginning balance	17,616	11,452	13,379	12,584
Initial Allowance on PCD Loans	0	2,777	3,232	2,777
Provision for credit losses	(334)	857	101	(226)
Charge-offs	(15)	(114)	(164)	(169)
Recoveries	75	16	794	22
Ending balance	17,342	14,988	17,342	14,988
Residential Real Estate Portfolio Segment [Member]
Beginning balance	8,724	5,001	7,993	5,207
Initial Allowance on PCD Loans	0	230	590	230
Provision for credit losses	399	2,577	540	2,373
Charge-offs	(7)	(40)	(13)	(43)
Recoveries	62	4	68	5
Ending balance	9,178	7,772	9,178	7,772
Loans, individually evaluated for impairment	4,467		4,467		2,499
Allowance for loans, individually evaluated for impairment	486		486		116
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	4,467		4,467		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	3,361	1,709	3,677	1,818
Initial Allowance on PCD Loans	0	88	0	88
Provision for credit losses	(176)	1,624	(495)	1,514
Charge-offs	0	0	0	0
Recoveries	5	1	8	2
Ending balance	3,190	3,422	3,190	3,422
Loans, individually evaluated for impairment	438		438		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	438		438		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	5,363	3,292	4,316	3,389
Initial Allowance on PCD Loans	0	142	590	142
Provision for credit losses	575	953	1,035	859
Charge-offs	(7)	(40)	(13)	(43)
Recoveries	57	3	60	3
Ending balance	5,988	4,350	5,988	4,350
Loans, individually evaluated for impairment	4,029		4,029		1,997
Allowance for loans, individually evaluated for impairment	370		370		0
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	4,029		4,029		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	5,864	5,527	4,789	6,119
Initial Allowance on PCD Loans	0	0	419	0
Provision for credit losses	422	(337)	1,078	(929)
Charge-offs	(72)	0	(72)	0
Recoveries	0	3	0	3
Ending balance	6,214	5,193	6,214	5,193
Loans, individually evaluated for impairment	3,852		3,852		0
Allowance for loans, individually evaluated for impairment	419		419		0
Construction and Development [Member] | Real Estate [Member]
Loans, individually evaluated for impairment	3,852		3,852		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	1,049	395	772	340
Initial Allowance on PCD Loans	0	0	78	0
Provision for credit losses	141	285	403	326
Charge-offs	(235)	(223)	(489)	(287)
Recoveries	158	115	349	193
Ending balance	1,113	572	1,113	572
Loans, individually evaluated for impairment	229		229		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	229		229		247
Finance Leases Portfolio Segment [Member]
Beginning balance	211	235	204	261
Initial Allowance on PCD Loans	0	0	0	0
Provision for credit losses	10	(3)	17	(29)
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Ending balance	221	232	221	232
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	190	134	162	135
Initial Allowance on PCD Loans	0	0	0	0
Provision for credit losses	(29)	8	(1)	7
Charge-offs	0	0	0	0
Recoveries	47	0	47	0
Ending balance	208	$ 142	208	$ 142
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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