Note 4 - Loans/Leases Receivable - Composition of the Loan Lease Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020	Dec. 31, 2019
Gross loans/leases receivable	$ 6,138,871	$ 4,680,132
Less allowance for credit losses	(87,706)	(78,721)	$ (84,376)	$ (84,376)	$ (36,001)
Net loans/leases receivable	6,051,165	4,601,411
C&I - revolving
Gross loans/leases receivable	296,869
Commercial Portfolio Segment [Member]
Gross loans/leases receivable	1,748,562	1,595,085
Less allowance for credit losses			(35,421)	(35,421)	(16,072)
Commercial Portfolio Segment [Member] | C&I - revolving
Gross loans/leases receivable	296,869	248,483
Less allowance for credit losses	(4,457)	(3,907)
Commercial Portfolio Segment [Member] | C&I - other
Gross loans/leases receivable	1,451,693	1,346,602
Less allowance for credit losses	(27,753)	(25,982)
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Gross loans/leases receivable	1,192,061	918,571
Commercial Real Estate Portfolio Segment [Member]
Less allowance for credit losses			(42,161)	(42,161)	(15,379)
Commercial Real Estate Portfolio Segment [Member] | CRE - owner occupied
Gross loans/leases receivable	629,367	421,701
Commercial Real Estate Portfolio Segment [Member] | CRE - non owner occupied
Gross loans/leases receivable	963,239	646,500
Less allowance for credit losses	(11,749)	(8,549)
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Gross loans/leases receivable	629,367	421,701
Less allowance for credit losses	(9,965)	(8,501)
Construction and Land Development [Member]
Gross loans/leases receivable	1,192,061
Less allowance for credit losses	(14,262)
Construction and Land Development [Member] | Construction Loans [Member]
Gross loans/leases receivable	1,192,061	918,571
Less allowance for credit losses	(14,262)	(16,972)
Multi-family
Gross loans/leases receivable	963,803	600,412
Less allowance for credit losses	(13,186)	(9,339)
Direct financing leases
Net minimum lease payments to be received	34,754	49,362
Estimated unguaranteed residual values of leased assets	165	165
Unearned lease/residual income	(3,030)	(4,336)
Gross loans/leases receivable	31,889	45,191
Plus deferred lease origination costs, net of fees	226	568
Gross loans/leases receivable after originated cost	32,115	45,759
Less allowance for credit losses	(970)	(1,546)	(1,764)	(1,764)	(1,464)
Net loans/leases receivable	31,145	44,213
Direct financing leases | C&I - other
Less allowance for credit losses	(1,500)			(1,800)
1-4 family real estate
Gross loans/leases receivable	499,529	377,361
Less allowance for credit losses	(4,963)	(4,541)
Residential real estate
Less allowance for credit losses			(3,732)	(3,732)	(1,948)
Consumer
Gross loans/leases receivable	110,421	75,311
Less allowance for credit losses	$ (1,371)	$ (930)	$ (1,298)	(1,298)
Installment and other consumer loans
Less allowance for credit losses				$ (1,298)	$ (1,138)