Note 6 - Loans and Allowance for Credit Losses on Loans - Schedule of Contractual Aging of Recorded Investment in Past Due Loans by Class (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Loans and Leases Receivable, Net of Deferred Income	$ 3,075,127	$ 2,761,391	[1]
Accruing	4	4
Commercial Loans [Member]
Accruing	0	0
Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	120,480	150,759
Accruing	0	0
Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	190,196	190,304
Accruing	0	0
Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	162,622	143,645
Accruing	0	0
Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	145,739	128,450
Accruing	0	0
Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	51,508	59,045
Accruing	0	0
Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	271,015	233,157
Accruing	0	0
Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	191,676	162,758
Accruing	0	0
Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	300,689	282,621
Accruing	0	0
Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	104,437	100,805
Accruing	0	0
Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	248,564	146,038
Accruing	0	0
Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	258,590	262,805
Accruing	0	0
Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	123,612	121,989
Accruing	0	0
Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	87,449	79,108
Accruing	0	0
Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	72,756	72,112
Accruing	0	0
Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	194,740	227,869
Accruing	0	0
Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	35,116	31,923
Accruing	0	0
Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	2,032	1,891
Accruing	4	4
Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	1,135	811
Accruing	0	0
Financial Asset, 30 to 59 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income	6,469	4,517
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	1,279	736
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	336	409
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	464	208
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	0	2
Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	71	0
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	264	66
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	1,000	38
Financial Asset, 30 to 59 Days Past Due [Member] | Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	1,533	2,283
Financial Asset, 30 to 59 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	1,029	429
Financial Asset, 30 to 59 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	347	236
Financial Asset, 30 to 59 Days Past Due [Member] | Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 30 to 59 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	145	98
Financial Asset, 30 to 59 Days Past Due [Member] | Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	1	12
Financial Asset, 30 to 59 Days Past Due [Member] | Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income	1,503	2,076
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	57	15
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	0	405
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	113	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	446	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	105	7
Financial Asset, 60 to 89 Days Past Due [Member] | Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	595	1,211
Financial Asset, 60 to 89 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	103	247
Financial Asset, 60 to 89 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	8	80
Financial Asset, 60 to 89 Days Past Due [Member] | Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, 60 to 89 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	73	101
Financial Asset, 60 to 89 Days Past Due [Member] | Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	3	10
Financial Asset, 60 to 89 Days Past Due [Member] | Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income	4,106	4,925
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	138	613
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	878	144
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	0	150
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	112	55
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	0	338
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	33	962
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	2,298	1,384
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	584	1,093
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	57	175
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	2	7
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	4	4
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income	12,078	11,518
Financial Asset, Past Due [Member] | Commercial Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	1,474	1,364
Financial Asset, Past Due [Member] | Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	336	409
Financial Asset, Past Due [Member] | Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	878	549
Financial Asset, Past Due [Member] | Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	577	358
Financial Asset, Past Due [Member] | Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member] | Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	0	2
Financial Asset, Past Due [Member] | Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	629	55
Financial Asset, Past Due [Member] | Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	264	404
Financial Asset, Past Due [Member] | Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member] | Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	1,138	1,007
Financial Asset, Past Due [Member] | Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member] | Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	4,426	4,878
Financial Asset, Past Due [Member] | Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	1,716	1,769
Financial Asset, Past Due [Member] | Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member] | Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	412	491
Financial Asset, Past Due [Member] | Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Past Due [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	220	206
Financial Asset, Past Due [Member] | Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	8	26
Financial Asset, Past Due [Member] | Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	0	0
Financial Asset, Not Past Due [Member]
Loans and Leases Receivable, Net of Deferred Income	3,063,049	2,749,873
Financial Asset, Not Past Due [Member] | Commercial Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	511,297	363,937
Financial Asset, Not Past Due [Member] | Commercial Real Estate Owner Occupied Professional, Medical [Member]
Loans and Leases Receivable, Net of Deferred Income	120,144	150,350
Financial Asset, Not Past Due [Member] | Commercial Real Estate Owner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	189,318	189,755
Financial Asset, Not Past Due [Member] | Commercial Real Estate Owner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	162,045	143,287
Financial Asset, Not Past Due [Member] | Commercial Real Estate Nonowner Occupied Hotels and Motels [Member]
Loans and Leases Receivable, Net of Deferred Income	145,739	128,450
Financial Asset, Not Past Due [Member] | Commercial Real Estate Nonowner Occupied Mini Storage [Member]
Loans and Leases Receivable, Net of Deferred Income	51,508	59,043
Financial Asset, Not Past Due [Member] | Multifamily [Member]
Loans and Leases Receivable, Net of Deferred Income	270,386	233,102
Financial Asset, Not Past Due [Member] | Commercial Real Estate Nonowner Occupied, Retail [Member]
Loans and Leases Receivable, Net of Deferred Income	191,412	162,354
Financial Asset, Not Past Due [Member] | Commercial Real Estate Nonowner Occupied, Other [Member]
Loans and Leases Receivable, Net of Deferred Income	300,689	282,621
Financial Asset, Not Past Due [Member] | Land and Land Improvements [Member]
Loans and Leases Receivable, Net of Deferred Income	103,299	99,798
Financial Asset, Not Past Due [Member] | Construction Loans [Member]
Loans and Leases Receivable, Net of Deferred Income	248,564	146,038
Financial Asset, Not Past Due [Member] | Residential 1-4 Family Real Estate, Personal Residence [Member]
Loans and Leases Receivable, Net of Deferred Income	254,164	257,927
Financial Asset, Not Past Due [Member] | Residential 1-4 Family Real Estate, Rental Small Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	121,896	120,220
Financial Asset, Not Past Due [Member] | Residential 1-4 Family Real Estate, Rental Large Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	87,449	79,108
Financial Asset, Not Past Due [Member] | Home Equity Loan [Member]
Loans and Leases Receivable, Net of Deferred Income	72,344	71,621
Financial Asset, Not Past Due [Member] | Mortgage Warehouse Lines [Member]
Loans and Leases Receivable, Net of Deferred Income	194,740	227,869
Financial Asset, Not Past Due [Member] | Consumer Portfolio Segment [Member]
Loans and Leases Receivable, Net of Deferred Income	34,896	31,717
Financial Asset, Not Past Due [Member] | Credit Card Receivable [Member]
Loans and Leases Receivable, Net of Deferred Income	2,024	1,865
Financial Asset, Not Past Due [Member] | Bank Overdrafts [Member]
Loans and Leases Receivable, Net of Deferred Income	$ 1,135	$ 811

[1] Derived from audited consolidated financial statements