Note 3 - LOANS/LEASES RECEIVABLE - Amortized Cost Basis of Collateral (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Allowance for credit losses	$ 85,797	$ 86,573	$ 87,706	$ 92,425	$ 74,786	$ 78,721
Collateral Dependent Loans
Allowance for credit losses	77,080		74,826
Commercial Assets
Allowance for credit losses	3,601		4,870
Owner occupied
Allowance for credit losses	23,412		25,024
Non Owner-Occupied Real Estate
Allowance for credit losses	35,212		33,437
Owner Occupied Real Estate
Allowance for credit losses	3,580		3,818
Securities
Allowance for credit losses	95		108
Equipment
Allowance for credit losses	10,770		7,394
Other
Allowance for credit losses	410		175
C&I | Collateral Dependent Loans
Allowance for credit losses	14,839		12,744
C&I | Commercial Assets
Allowance for credit losses	3,601		4,870
C&I | Owner occupied
Allowance for credit losses			210
C&I | Securities
Allowance for credit losses	95		108
C&I | Equipment
Allowance for credit losses	10,770		7,394
C&I | Other
Allowance for credit losses	373		162
C&I | C&I - revolving
Allowance for credit losses	4,101	4,637	4,457	5,179	3,619	3,907
C&I | C&I - revolving | Collateral Dependent Loans
Allowance for credit losses	2,840		3,386
C&I | C&I - revolving | Commercial Assets
Allowance for credit losses	2,735		3,281
C&I | C&I - revolving | Equipment
Allowance for credit losses	105		105
C&I | C&I - other including lease
Allowance for credit losses	27,162	26,637	27,753	28,093	25,437	25,982
C&I | C&I - other including lease | Collateral Dependent Loans
Allowance for credit losses	11,999		9,358
C&I | C&I - other including lease | Commercial Assets
Allowance for credit losses	866		1,589
C&I | C&I - other including lease | Owner occupied
Allowance for credit losses			210
C&I | C&I - other including lease | Securities
Allowance for credit losses	95		108
C&I | C&I - other including lease | Equipment
Allowance for credit losses	10,665		7,289
C&I | C&I - other including lease | Other
Allowance for credit losses	373		162
CRE | Owner occupied
Allowance for credit losses	8,731	9,089	9,965	11,065	7,897	8,501
CRE | Owner occupied | Collateral Dependent Loans
Allowance for credit losses	23,478		24,880
CRE | Owner occupied | Owner occupied
Allowance for credit losses	23,412		24,814
CRE | Owner occupied | Owner Occupied Real Estate
Allowance for credit losses	66		66
CRE | Non-owner occupied
Allowance for credit losses	11,968	12,632	11,749	12,049	7,857	8,549
CRE | Non-owner occupied | Collateral Dependent Loans
Allowance for credit losses	22,839		21,588
CRE | Non-owner occupied | Non Owner-Occupied Real Estate
Allowance for credit losses	22,839		21,588
Construction and land development
Allowance for credit losses	15,888	15,245	14,262	16,388	14,671	16,972
Construction and land development | Collateral Dependent Loans
Allowance for credit losses	2,359		10,394
Construction and land development | Non Owner-Occupied Real Estate
Allowance for credit losses	2,359		10,394
Direct financing leases
Allowance for credit losses	1,006		970
Direct financing leases | C&I - other including lease
Allowance for credit losses						1,500
Direct financing leases | C&I - other including lease | Commercial Assets
Allowance for credit losses	132		135
Multi-family
Allowance for credit losses	11,229	11,621	13,186	12,783	10,336	9,339
Multi-family | Collateral Dependent Loans
Allowance for credit losses	9,531		1,302
Multi-family | Non Owner-Occupied Real Estate
Allowance for credit losses	9,531		1,302
1-4 family real estate
Allowance for credit losses	5,213	5,270	4,963	5,513	4,154	4,541
1-4 family real estate | Collateral Dependent Loans
Allowance for credit losses	3,341		3,177
1-4 family real estate | Non Owner-Occupied Real Estate
Allowance for credit losses	363		33
1-4 family real estate | Owner Occupied Real Estate
Allowance for credit losses	2,978		3,144
Consumer
Allowance for credit losses	1,505	$ 1,442	1,371	$ 1,355	$ 815	$ 930
Consumer | Collateral Dependent Loans
Allowance for credit losses	693		741
Consumer | Non Owner-Occupied Real Estate
Allowance for credit losses	120		120
Consumer | Owner Occupied Real Estate
Allowance for credit losses	536		608
Consumer | Other
Allowance for credit losses	$ 37		$ 13