Note 3 - LOANS/LEASES RECEIVABLE - Aging of the Loan Lease Portfolio (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Loan	$ 6,190,022	$ 6,138,871
Accruing Past Due 90 Days or More	15	5
Nonaccrual Loans/Leases	$ 22,947	$ 8,765
Accruing past due 90 days or more as a percentage of total loan/lease portfolio	0.00%	0.00%
Nonaccrual Loans/Leases as a percentage of total loan/lease portfolio	0.37%	0.14%
Loans and leases as a percentage of total loan/lease portfolio	100.00%	100.00%
C&I - revolving
Loan		$ 296,869
C&I - other
Loan		1,451,693
Accruing Past Due 90 Days or More		5
Nonaccrual Loans/Leases		3,135
Owner Occupied Commercial Real Estate Loans [Member]
Loan		629,367
Nonaccrual Loans/Leases		2,590
CRE - non owner occupied
Loan		963,239
Nonaccrual Loans/Leases		374
Current
Loan	$ 6,155,073	$ 6,120,819
Current as a percentage of total loan/lease portfolio	99.43%	98.88%
Current \| C&I - revolving
Loan		$ 296,869
Current \| C&I - other
Loan		1,442,629
Current \| Owner Occupied Commercial Real Estate Loans [Member]
Loan		625,611
Current \| CRE - non owner occupied
Loan		962,444
Financing Receivables, 30 to 59 Days Past Due [Member]
Loan	$ 7,769	$ 7,585
Past due as a percentage of total loan/lease portfolio	0.13%	0.12%
Financing Receivables, 30 to 59 Days Past Due [Member] \| C&I - other
Loan		$ 4,800
Financing Receivables, 30 to 59 Days Past Due [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Loan		1,166
Financing Receivables, 30 to 59 Days Past Due [Member] \| CRE - non owner occupied
Loan		421
Financing Receivables, 60 to 89 Days Past Due [Member]
Loan	$ 4,218	$ 1,697
Past due as a percentage of total loan/lease portfolio	0.07%	0.03%
Financing Receivables, 60 to 89 Days Past Due [Member] \| C&I - other
Loan		$ 1,124
Commercial Portfolio Segment [Member]
Loan	$ 1,727,943	1,748,562
Commercial Portfolio Segment [Member] \| C&I - revolving
Loan	307,612	296,869
Commercial Portfolio Segment [Member] \| C&I - other
Loan	1,420,331	1,451,693
Accruing Past Due 90 Days or More	15
Nonaccrual Loans/Leases	4,755
Commercial Portfolio Segment [Member] \| Current \| C&I - revolving
Loan	307,612
Commercial Portfolio Segment [Member] \| Current \| C&I - other
Loan	1,406,944
Commercial Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| C&I - other
Loan	4,718
Commercial Portfolio Segment [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member] \| C&I - other
Loan	3,899
Commercial Real Estate Portfolio Segment [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Loan	616,922	629,367
Nonaccrual Loans/Leases	2,644
Commercial Real Estate Portfolio Segment [Member] \| CRE - non owner occupied
Loan	982,716	963,239
Nonaccrual Loans/Leases	2,218
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Loan	1,208,185	1,192,061
Nonaccrual Loans/Leases	10,659	132
Commercial Real Estate Portfolio Segment [Member] \| Current \| Owner Occupied Commercial Real Estate Loans [Member]
Loan	612,379
Commercial Real Estate Portfolio Segment [Member] \| Current \| CRE - non owner occupied
Loan	980,498
Commercial Real Estate Portfolio Segment [Member] \| Current \| Construction Loans [Member]
Loan	1,197,526	1,191,929
Commercial Real Estate Portfolio Segment [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member] \| Owner Occupied Commercial Real Estate Loans [Member]
Loan	1,899
Multi-family
Loan	969,870	963,803
Multi-family \| Current
Loan	969,870	963,803
Direct financing leases
Loan	35,373	31,889
Nonaccrual Loans/Leases	118	135
Direct financing leases \| Current
Loan	34,951	31,557
Direct financing leases \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loan	220	141
Direct financing leases \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loan	84	56
1-4 family real estate
Loan	532,491	499,529
Nonaccrual Loans/Leases	2,287	2,046
1-4 family real estate \| Current
Loan	529,263	495,936
1-4 family real estate \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loan	865	1,030
1-4 family real estate \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loan	76	517
Consumer
Loan	116,522	110,421
Nonaccrual Loans/Leases	266	353
Consumer \| Current
Loan	116,030	110,041
Consumer \| Financing Receivables, 30 to 59 Days Past Due [Member]
Loan	67	$ 27
Consumer \| Financing Receivables, 60 to 89 Days Past Due [Member]
Loan	$ 159

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