Note 3 - LOANS/LEASES RECEIVABLE - Leases By Delinquency Status (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Loans and leases	$ 4,361,051	$ 4,243,791
Delinquency Status [Member]
2021	73,772
2020	195,919
2019	98,152
2018	58,297
2017	34,004
Prior	73,203
Revolving Loans Amortized Cost Basis	49,860
Loans and leases	583,207
Nonperforming Financial Instruments [Member]
Loans and leases	13,863	14,684
Construction Loans [Member]
Loans and leases	607,798
Commercial Portfolio Segment [Member]
Loans and leases	1,784,986	1,726,723
Commercial Portfolio Segment [Member] | Delinquency Status [Member]
Loans and leases		171,506
Commercial Portfolio Segment [Member] | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		170,712
Commercial Portfolio Segment [Member] | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		794
Commercial Portfolio Segment [Member] | Nonperforming Financial Instruments [Member]
Loans and leases		5,413
Commercial Portfolio Segment [Member] | C&I - other
Loans and leases	1,616,144
Commercial Portfolio Segment [Member] | C&I - other | Delinquency Status [Member]
2021	32,767
2020	70,737
2019	50,416
2018	25,066
2017	9,188
Prior	1,170
Loans and leases	189,344
Commercial Portfolio Segment [Member] | C&I - other | Non Performing Greater Than Ninety Days Past Due [Member]
2020	123
2019	683
2018	198
2017	136
Prior	17
Loans and leases	1,157
Commercial Portfolio Segment [Member] | C&I - other | Performing Loans
2021	32,767
2020	70,614
2019	49,733
2018	24,868
2017	9,052
Prior	1,153
Loans and leases	188,187
Commercial Portfolio Segment [Member] | C&I - other | Nonperforming Financial Instruments [Member]
Loans and leases	5,215
Direct financing leases
Loans and leases	60,134	66,016
Direct financing leases | Delinquency Status [Member]
2021	304
2020	16,671
2019	16,736
2018	14,817
2017	7,951
Prior	3,655
Loans and leases	60,134	66,016
Direct financing leases | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		65,475
Direct financing leases | Non Performing Greater Than Ninety Days Past Due [Member]
2019	19
2018	139
2017	78
Prior	84
Loans and leases	320	541
Direct financing leases | Performing Loans
2021	304
2020	16,671
2019	16,717
2018	14,678
2017	7,873
Prior	3,571
Loans and leases	59,814
Direct financing leases | Nonperforming Financial Instruments [Member]
Loans and leases	320	541
Construction and Land Development [Member] | Construction Loans [Member]
Loans and leases	607,798
Construction and Land Development [Member] | Construction Loans [Member] | Delinquency Status [Member]
2021	1,270
2020	8,723
2019	429
2018	520
2017	77
Loans and leases	11,019
Construction and Land Development [Member] | Construction Loans [Member] | Non Performing Greater Than Ninety Days Past Due [Member]
2017	77
Loans and leases	77
Construction and Land Development [Member] | Construction Loans [Member] | Performing Loans
2021	1,270
2020	8,723
2019	429
2018	520
Loans and leases	10,942
Construction and Land Development [Member] | Construction Loans [Member] | Nonperforming Financial Instruments [Member]
Loans and leases	77
1-4 family real estate
Loans and leases	368,927
1-4 family real estate | Nonperforming Financial Instruments [Member]
Loans and leases	3,447
1-4 family real estate | One To Four Family [Member] | Delinquency Status [Member]
2021	36,985
2020	92,028
2019	27,187
2018	15,035
2017	15,774
Prior	64,557
Revolving Loans Amortized Cost Basis	64
Loans and leases	251,630
1-4 family real estate | One To Four Family [Member] | Non Performing Greater Than Ninety Days Past Due [Member]
2020	31
2019	72
Prior	625
Loans and leases	728
1-4 family real estate | One To Four Family [Member] | Performing Loans
2021	36,985
2020	91,997
2019	27,115
2018	15,035
2017	15,774
Prior	63,932
Revolving Loans Amortized Cost Basis	64
Loans and leases	250,902
Residential real estate
Loans and leases		252,121
Residential real estate | Delinquency Status [Member]
Loans and leases		252,121
Residential real estate | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		251,099
Residential real estate | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		1,022
Residential real estate | Nonperforming Financial Instruments [Member]
Loans and leases		1,022
Consumer
Loans and leases	71,080
Consumer | Delinquency Status [Member]
2021	2,446
2020	7,760
2019	3,384
2018	2,859
2017	1,014
Prior	3,821
Revolving Loans Amortized Cost Basis	49,796
Loans and leases	71,080
Consumer | Non Performing Greater Than Ninety Days Past Due [Member]
2019	47
2018	49
2017	17
Prior	32
Loans and leases	145
Consumer | Performing Loans
2021	2,446
2020	7,760
2019	3,337
2018	2,810
2017	997
Prior	3,789
Revolving Loans Amortized Cost Basis	49,796
Loans and leases	70,935
Consumer | Nonperforming Financial Instruments [Member]
Loans and leases	$ 145
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		91,302
Installment and other consumer loans | Performing Less Than Ninety Days Past Due [Member}
Loans and leases		91,094
Installment and other consumer loans | Non Performing Greater Than Ninety Days Past Due [Member]
Loans and leases		208
Installment and other consumer loans | Nonperforming Financial Instruments [Member]
Loans and leases		$ 208