Note 4 - Loans/Leases Receivable - Composition Of Allowance For Credit Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2021	Dec. 31, 2020	Dec. 31, 2019
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	$ 74,826	$ 58,677
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	6,064,045	4,621,455
Gross loans/leases receivable	6,138,871	4,680,132
Allowance for Credit Losses, Individually Evaluated for Credit Losses	6,928	2,554
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	80,778	76,167
Allowance for Credit Losses, Total	87,706	78,721	$ 84,376	$ 84,376	$ 36,001
C&I - revolving
Gross loans/leases receivable	296,869
Commercial Portfolio Segment [Member]
Gross loans/leases receivable	1,748,562	1,595,085
Allowance for Credit Losses, Total			35,421	35,421	16,072
Commercial Portfolio Segment [Member] | C&I - revolving
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	3,386	2,638
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	293,483	245,845
Gross loans/leases receivable	296,869	248,483
Allowance for Credit Losses, Individually Evaluated for Credit Losses	961	168
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	3,496	3,739
Allowance for Credit Losses, Total	4,457	3,907
Commercial Portfolio Segment [Member] | C&I - other including lease
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	9,358	13,456
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	1,474,224	1,378,337
Gross loans/leases receivable	1,483,582	1,391,793
Allowance for Credit Losses, Individually Evaluated for Credit Losses	1,445	743
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	26,308	25,239
Allowance for Credit Losses, Total	27,753	25,982
Commercial Portfolio Segment [Member] | C&I - revolving and other including lease
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	12,744	16,094
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	1,767,707	1,624,182
Gross loans/leases receivable	1,780,451	1,640,276
Allowance for Credit Losses, Individually Evaluated for Credit Losses	2,406	911
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	29,804	28,978
Allowance for Credit Losses, Total	32,210	29,889
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Gross loans/leases receivable	1,192,061	918,571
Commercial Real Estate Portfolio Segment [Member]
Allowance for Credit Losses, Total			42,161	42,161	15,379
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied Commercial Real Estate Loans [Member]
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	24,880	3,841
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	604,487	417,860
Gross loans/leases receivable	629,367	421,701
Allowance for Credit Losses, Individually Evaluated for Credit Losses	2,853	1,264
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	7,112	7,237
Allowance for Credit Losses, Total	9,965	8,501
Commercial Real Estate Portfolio Segment [Member] | CRE - non owner occupied
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	21,588	25,006
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	941,651	621,494
Gross loans/leases receivable	963,239	646,500
Allowance for Credit Losses, Individually Evaluated for Credit Losses	869
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	10,880	8,549
Allowance for Credit Losses, Total	11,749	8,549
Construction and Land Development [Member]
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	10,394
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	1,181,667
Gross loans/leases receivable	1,192,061
Allowance for Credit Losses, Individually Evaluated for Credit Losses	13
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	14,249
Allowance for Credit Losses, Total	14,262
Construction and Land Development [Member] | Construction Loans [Member]
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses		10,436
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses		908,135
Gross loans/leases receivable	1,192,061	918,571
Allowance for Credit Losses, Individually Evaluated for Credit Losses		11
Allowance for Credit Losses, Collectively Evaluated for Credit Losses		16,961
Allowance for Credit Losses, Total	14,262	16,972
Multi-family
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	1,302
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	962,501	600,412
Gross loans/leases receivable	963,803	600,412
Allowance for Credit Losses, Individually Evaluated for Credit Losses	395
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	12,791	9,339
Allowance for Credit Losses, Total	13,186	9,339
1-4 family real estate
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	3,177	2,950
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	496,352	374,411
Gross loans/leases receivable	499,529	377,361
Allowance for Credit Losses, Individually Evaluated for Credit Losses	317	329
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	4,646	4,212
Allowance for Credit Losses, Total	4,963	4,541
Consumer
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	741	350
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	109,680	74,961
Gross loans/leases receivable	110,421	75,311
Allowance for Credit Losses, Individually Evaluated for Credit Losses	75	39
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	1,296	891
Allowance for Credit Losses, Total	1,371	930	1,298	1,298
Direct financing leases
Gross loans/leases receivable	31,889	45,191
Allowance for Credit Losses, Total	970	1,546	1,764	1,764	1,464
Direct financing leases | C&I - revolving
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses	135
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses	31,800
Allowance for Credit Losses, Individually Evaluated for Credit Losses	24
Allowance for Credit Losses, Collectively Evaluated for Credit Losses	$ 946,000
Direct financing leases | C&I - other including lease
Amortized Cost of Loans Receivable, Individually Evaluated for Credit Losses		847
Amortized Cost of Loans Receivable, Collectively Evaluated for Credit Losses		44,400
Allowance for Credit Losses, Individually Evaluated for Credit Losses		35
Allowance for Credit Losses, Collectively Evaluated for Credit Losses		$ 1,500
Residential real estate
Allowance for Credit Losses, Total			$ 3,732	3,732	1,948
Installment and other consumer loans
Allowance for Credit Losses, Total				$ 1,298	$ 1,138