Note 7 - Loans and Allowance for Credit Losses on Loans - Impaired Financing Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Financing Receivable, Individually Evaluated for Impairment	$ 31,245		$ 27,523
Financing Receivable, Loans Collectively Evaluated	3,051,573	[1]	2,733,868	[2]
Financing Receivable, Total	3,082,818		2,761,391
Financing Receivable, Allowance for Credit Losses	1,378		2,096
Allowance for Credit Losses, Loans Collectively Evaluated	37,521		30,202
Allowance for Credit Losses, Total	38,899		32,298		$ 32,246
Commercial Loans [Member]
Financing Receivable, Individually Evaluated for Impairment	104		177
Financing Receivable, Loans Collectively Evaluated	501,740	[1]	365,124	[2]
Financing Receivable, Total	501,844		365,301
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	4,941		3,218
Allowance for Credit Losses, Total	4,941		3,218		2,304
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Financing Receivable, Individually Evaluated for Impairment	1,969		2,073
Financing Receivable, Loans Collectively Evaluated	118,903	[1]	148,686	[2]
Financing Receivable, Total	120,872		150,759
Financing Receivable, Allowance for Credit Losses	212		199
Allowance for Credit Losses, Loans Collectively Evaluated	754		893
Allowance for Credit Losses, Total	966		1,092		954
Commercial Real Estate Owner Occupied, Retail [Member]
Financing Receivable, Individually Evaluated for Impairment	4,544		5,559
Financing Receivable, Loans Collectively Evaluated	183,652	[1]	184,745	[2]
Financing Receivable, Total	188,196		190,304
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	1,176		1,362
Allowance for Credit Losses, Total	1,176		1,362		3,173
Commercial Real Estate Owner Occupied, Other [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	157,982	[1]	143,645	[2]
Financing Receivable, Total	157,982		143,645
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	426		575
Allowance for Credit Losses, Total	426		575		610
Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Financing Receivable, Individually Evaluated for Impairment	2,939		3,085
Financing Receivable, Loans Collectively Evaluated	138,103	[1]	125,365	[2]
Financing Receivable, Total	141,042		128,450
Financing Receivable, Allowance for Credit Losses	0		669
Allowance for Credit Losses, Loans Collectively Evaluated	1,203		1,863
Allowance for Credit Losses, Total	1,203		2,532
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Financing Receivable, Individually Evaluated for Impairment	0		1,058
Financing Receivable, Loans Collectively Evaluated	51,109	[1]	57,987	[2]
Financing Receivable, Total	51,109		59,045
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	82		133
Allowance for Credit Losses, Total	82		133		337
Multifamily [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	272,705	[1]	233,157	[2]
Financing Receivable, Total	272,705		233,157
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	2,907		1,821
Allowance for Credit Losses, Total	2,907		1,821		1,547
Commercial Real Estate Nonowner Occupied, Retail [Member]
Financing Receivable, Individually Evaluated for Impairment	9,906		2,693
Financing Receivable, Loans Collectively Evaluated	182,364	[1]	160,065	[2]
Financing Receivable, Total	192,270		162,758
Financing Receivable, Allowance for Credit Losses	95		0
Allowance for Credit Losses, Loans Collectively Evaluated	1,267		1,074
Allowance for Credit Losses, Total	1,362		1,074		981
Commercial Real Estate Nonowner Occupied, Other [Member]
Financing Receivable, Individually Evaluated for Impairment	5,551		5,726
Financing Receivable, Loans Collectively Evaluated	341,691	[1]	276,895	[2]
Financing Receivable, Total	347,242		282,621
Financing Receivable, Allowance for Credit Losses	287		69
Allowance for Credit Losses, Loans Collectively Evaluated	2,165		1,751
Allowance for Credit Losses, Total	2,452		1,820		1,104
Land and Land Improvements [Member]
Financing Receivable, Individually Evaluated for Impairment	1,398		2,004
Financing Receivable, Loans Collectively Evaluated	104,964	[1]	98,801	[2]
Financing Receivable, Total	106,362		100,805
Financing Receivable, Allowance for Credit Losses	502		723
Allowance for Credit Losses, Loans Collectively Evaluated	2,980		2,745
Allowance for Credit Losses, Total	3,482		3,468		4,084
Construction Loans [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	282,935	[1]	146,038	[2]
Financing Receivable, Total	282,935		146,038
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	11,138		6,346
Allowance for Credit Losses, Total	11,138		6,346		4,648
Residential 1-4 Family Real Estate, Personal Residence [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	265,326	[1]	262,805	[2]
Financing Receivable, Total	265,326		262,805
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	2,939		2,765
Allowance for Credit Losses, Total	2,939		2,765		3,559
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Financing Receivable, Individually Evaluated for Impairment	1,159		1,463
Financing Receivable, Loans Collectively Evaluated	120,389	[1]	120,526	[2]
Financing Receivable, Total	121,548		121,989
Financing Receivable, Allowance for Credit Losses	282		436
Allowance for Credit Losses, Loans Collectively Evaluated	1,625		2,398
Allowance for Credit Losses, Total	1,907		2,834		2,736
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Financing Receivable, Individually Evaluated for Impairment	3,675		3,162
Financing Receivable, Loans Collectively Evaluated	88,428	[1]	75,946	[2]
Financing Receivable, Total	92,103		79,108
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	2,668		2,374
Allowance for Credit Losses, Total	2,668		2,374		3,007
Home Equity Loan [Member]
Financing Receivable, Individually Evaluated for Impairment	0		523
Financing Receivable, Loans Collectively Evaluated	71,986	[1]	71,589	[2]
Financing Receivable, Total	71,986		72,112
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	705		497
Allowance for Credit Losses, Total	705		497
Mortgage Warehouse Lines [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	130,390	[1]	227,869	[2]
Financing Receivable, Total	130,390		227,869
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	0		0
Allowance for Credit Losses, Total	0		0		0
Consumer Portfolio Segment [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	35,372	[1]	31,923	[2]
Financing Receivable, Total	35,372		31,923
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	174		163
Allowance for Credit Losses, Total	174		163		216
Credit Card Receivable [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	2,182	[1]	1,891	[2]
Financing Receivable, Total	2,182		1,891
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	17		17
Allowance for Credit Losses, Total	17		17		17
Bank Overdrafts [Member]
Financing Receivable, Individually Evaluated for Impairment	0		0
Financing Receivable, Loans Collectively Evaluated	1,352	[1]	811	[2]
Financing Receivable, Total	1,352		811
Financing Receivable, Allowance for Credit Losses	0		0
Allowance for Credit Losses, Loans Collectively Evaluated	354		207
Allowance for Credit Losses, Total	$ 354		$ 207		$ 121

[1] Included in the loans collectively evaluated are $8.5 million in fully guaranteed or cash secured loans, which are excluded from the pools collectively evaluated and carry no allowance.

[2] Included in the loans collectively evaluated are $19.8 million in fully guaranteed or cash secured loans, which are excluded from the pools collectively evaluated and carry no allowance.