Note 4 - Loans/Leases Receivable - Amortized Cost Basis of Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Loans/leases receivable	$ 6,543,416	$ 6,138,871
Collateral Dependent Loans
Loans/leases receivable	83,976	74,826
Commercial Assets
Loans/leases receivable	5,551	4,870
Owner occupied
Loans/leases receivable	22,794	25,024
Non Owner-Occupied Real Estate
Loans/leases receivable	32,976	33,437
Owner Occupied Real Estate
Loans/leases receivable	3,369	3,818
Securities
Loans/leases receivable	5,191	108
Equipment
Loans/leases receivable	13,249	7,394
Other
Loans/leases receivable	846	175
C&I
Loans/leases receivable	1,807,021	1,748,562
C&I | Collateral Dependent Loans
Loans/leases receivable	24,813	12,744
C&I | Commercial Assets
Loans/leases receivable	5,551	4,870
C&I | Owner occupied
Loans/leases receivable		210
C&I | Securities
Loans/leases receivable	5,191	108
C&I | Equipment
Loans/leases receivable	13,249	7,394
C&I | Other
Loans/leases receivable	822	162
C&I | C&I - revolving
Loans/leases receivable	325,243	296,869
C&I | C&I - revolving | Collateral Dependent Loans
Loans/leases receivable	4,680	3,386
C&I | C&I - revolving | Commercial Assets
Loans/leases receivable	4,680	3,281
C&I | C&I - revolving | Equipment
Loans/leases receivable		105
C&I | C&I - other including lease
Loans/leases receivable	1,512,942	1,483,582
C&I | C&I - other including lease | Collateral Dependent Loans
Loans/leases receivable	20,133	9,358
C&I | C&I - other including lease | Commercial Assets
Loans/leases receivable	871	1,589
C&I | C&I - other including lease | Owner occupied
Loans/leases receivable		210
C&I | C&I - other including lease | Securities
Loans/leases receivable	5,191	108
C&I | C&I - other including lease | Equipment
Loans/leases receivable	13,249	7,289
C&I | C&I - other including lease | Other
Loans/leases receivable	822	162
CRE | Owner occupied
Loans/leases receivable	607,365	629,367
CRE | Owner occupied | Collateral Dependent Loans
Loans/leases receivable	22,709	24,880
CRE | Owner occupied | Owner occupied
Loans/leases receivable	22,644	24,814
CRE | Owner occupied | Owner Occupied Real Estate
Loans/leases receivable	65	66
CRE | Non-owner occupied
Loans/leases receivable	1,008,892	963,239
CRE | Non-owner occupied | Collateral Dependent Loans
Loans/leases receivable	21,886	21,588
CRE | Non-owner occupied | Non Owner-Occupied Real Estate
Loans/leases receivable	21,886	21,588
Construction and land development
Loans/leases receivable	1,420,525	1,192,061
Construction and land development | Collateral Dependent Loans
Loans/leases receivable	2,726	10,394
Construction and land development | Owner occupied
Loans/leases receivable	150
Construction and land development | Non Owner-Occupied Real Estate
Loans/leases receivable	2,576	10,394
Direct financing leases
Loans/leases receivable	31,164	31,889
Direct financing leases | C&I - other including lease | Commercial Assets
Loans/leases receivable	289	135
Multi-family
Loans/leases receivable	996,143	963,803
Multi-family | Collateral Dependent Loans
Loans/leases receivable	8,206	1,302
Multi-family | Non Owner-Occupied Real Estate
Loans/leases receivable	8,206	1,302
1-4 family real estate
Loans/leases receivable	544,971	499,529
1-4 family real estate | Collateral Dependent Loans
Loans/leases receivable	3,128	3,177
1-4 family real estate | Non Owner-Occupied Real Estate
Loans/leases receivable	189	33
1-4 family real estate | Owner Occupied Real Estate
Loans/leases receivable	2,939	3,144
Consumer
Loans/leases receivable	127,335	110,421
Consumer | Collateral Dependent Loans
Loans/leases receivable	508	741
Consumer | Non Owner-Occupied Real Estate
Loans/leases receivable	119	120
Consumer | Owner Occupied Real Estate
Loans/leases receivable	365	608
Consumer | Other
Loans/leases receivable	$ 24	$ 13