Note 4 - Loans Leases Receivable - Leases By Delinquency Status (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Loans and leases	$ 4,680,132	$ 4,243,791
Delinquency Status [Member]
2021	245,701
2020	152,113
2019	66,802
2018	36,973
2017	19,169
Prior	46,979
Revolving Loans Amortized Cost Basis	55,759
Loans and leases	623,496		$ 579,103
As a % of Total			100.00%
Performing Less Than Ninety Days Past Due [Member}
Loans and leases			$ 574,972
As a % of Total			99.29%
Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases			$ 4,131
As a % of Total			0.71%
Nonperforming Financial Instruments [Member]
Loans and leases	2,760	14,684
C&I - other
2021	3,580
2020	373
2019	349
2017	336
Loans and leases	4,640
C&I - other | Nonperforming Financial Instruments [Member]
Loans and leases	1,401
Commercial Portfolio Segment [Member]
Loans and leases	1,595,085	1,726,723
Commercial Portfolio Segment [Member] | Delinquency Status [Member]
Loans and leases		171,506	$ 141,978
Commercial Portfolio Segment [Member] | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		170,712	140,992
Commercial Portfolio Segment [Member] | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		794	986
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Loans and leases		5,413
Commercial Portfolio Segment [Member] | C&I - other
Loans and leases	1,346,602
Commercial Portfolio Segment [Member] | C&I - other | Delinquency Status [Member]
2021	117,258
2020	54,438
2019	34,034
2018	14,642
2017	4,242
Prior	469
Loans and leases	225,083
Commercial Portfolio Segment [Member] | C&I - other | Performing Loans
2021	117,163
2020	54,261
2019	33,390
2018	14,274
2017	4,200
Prior	455
Loans and leases	223,743
Commercial Portfolio Segment [Member] | C&I - other | Nonperforming Financial Instruments [Member]
2021	95
2020	177
2019	644
2018	368
2017	42
Prior	14
Loans and leases	1,340
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Loans and leases	918,571	541,455
Direct financing leases
Loans and leases	45,191	66,016
Direct financing leases | Delinquency Status [Member]
2021	6,690
2020	12,862
2019	11,638
2018	9,287
2017	3,713
Prior	1,001
Loans and leases	45,191	66,016	87,869
Direct financing leases | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		65,475	86,019
Direct financing leases | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		541	1,850
Direct financing leases | Performing Loans
2021	6,690
2020	12,130
2019	11,638
2018	9,235
2017	3,695
Prior	956
Loans and leases	44,344
Direct financing leases | Nonperforming Financial Instruments [Member]
2020	732
2018	52
2017	18
Prior	45
Loans and leases	847	541
Construction and Land Development [Member] | C&I - other | Performing Loans
2021	12,857
2020	2,080
2018	494
Revolving Loans Amortized Cost Basis	280
Loans and leases	15,711
Construction and Land Development [Member] | C&I - other | Nonperforming Financial Instruments [Member]
2017	73
Loans and leases	73
Construction and Land Development [Member] | Construction Loans [Member]
Loans and leases	918,571
Construction and Land Development [Member] | Construction Loans [Member] | Delinquency Status [Member]
2021	12,857
2020	2,080
2018	494
2017	73
Revolving Loans Amortized Cost Basis	280
Loans and leases	15,784
Construction and Land Development [Member] | Construction Loans [Member] | Nonperforming Financial Instruments [Member]
Loans and leases	73
1-4 family real estate
Loans and leases	377,361
1-4 family real estate | Nonperforming Financial Instruments [Member]
Loans and leases	408
1-4 family real estate | One To Four Family [Member] | Delinquency Status [Member]
2021	104,005
2020	78,713
2019	19,001
2018	10,890
2017	10,533
Prior	44,278
Revolving Loans Amortized Cost Basis	68
Loans and leases	267,488
1-4 family real estate | One To Four Family [Member] | Performing Loans
2021	104,005
2020	78,713
2019	19,001
2018	10,784
2017	10,533
Prior	43,976
Revolving Loans Amortized Cost Basis	68
Loans and leases	267,080
1-4 family real estate | One To Four Family [Member] | Nonperforming Financial Instruments [Member]
2018	106
Prior	302
Loans and leases	408
Residential real estate
Loans and leases		252,121
Residential real estate | Delinquency Status [Member]
Loans and leases		252,121	239,904
Residential real estate | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		251,099	239,198
Residential real estate | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		1,022	706
Residential real estate | Nonperforming Financial Instruments [Member]
Loans and leases		1,022
Consumer
Loans and leases	75,311	91,302
Consumer | Delinquency Status [Member]
2021	4,891
2020	4,020
2019	2,129
2018	1,660
2017	608
Prior	1,231
Revolving Loans Amortized Cost Basis	55,411
Loans and leases	69,950	91,302
Consumer | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		91,094
Consumer | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		208
Consumer | Performing Loans
2021	4,891
2020	4,020
2019	2,114
2018	1,660
2017	593
Prior	1,230
Revolving Loans Amortized Cost Basis	55,411
Loans and leases	69,919
Consumer | Nonperforming Financial Instruments [Member]
2019	15
2017	15
Prior	1
Loans and leases	$ 31
Lease Residential and Consumer Portfolio Segments [Member] | Delinquency Status [Member]
Loans and leases		$ 580,945
As a % of Total		100.00%
Lease Residential and Consumer Portfolio Segments [Member] | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		$ 578,380
As a % of Total		99.56%
Lease Residential and Consumer Portfolio Segments [Member] | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		$ 2,565
As a % of Total		0.44%
Installment and other consumer loans
Loans and leases		$ 91,302
Installment and other consumer loans | Delinquency Status [Member]
Loans and leases			109,352
Installment and other consumer loans | Performing Less Than Ninety Days Past Due [Member}
Loans and leases			108,763
Installment and other consumer loans | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases			$ 589
Installment and other consumer loans | Nonperforming Financial Instruments [Member]
Loans and leases		$ 208