Note 21 - Parent Company Only Financial Statements - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 546,094	$ 373,300	$ 300,577
Total interest expense	192,404	61,451	21,922
Salaries and employee benefits	136,619	115,368	100,907
Acquisition costs		3,715	624
Post-acquisition compensation, transition and integration costs	207	5,526
Disposition costs			13
Income before taxes	126,620	113,549	121,467
Income tax benefit	(13,062)	(14,483)	(22,562)
Net Income (Loss)	113,558	99,066	98,905
Parent Company [Member] | Reportable Legal Entities [Member]
Total interest income		26	3
Other	704	(53)	853
Revenue	140,375	130,208	118,720
Total interest expense	16,066	11,836	8,482
Salaries and employee benefits	9,940	15,551	12,446
Professional fees	12	1,789	1,983
Acquisition costs		3,715	624
Post-acquisition compensation, transition and integration costs	207	5,526
Disposition costs			13
Other	3,744	3,331	2,784
Total expenses	29,969	41,748	26,332
Income before taxes	110,406	88,460	92,388
Income tax benefit	3,152	10,606	6,517
Net Income (Loss)	113,558	99,066	98,905
Parent Company [Member] | Reportable Legal Entities [Member] | Bank Subsidiaries [Member]
Equity in net income (loss) of bank subsidiaries	137,451	128,941	117,408
Parent Company [Member] | Reportable Legal Entities [Member] | Non-bank Subsidiaries [Member]
Equity in net income (loss) of bank subsidiaries	$ 2,220	$ 1,294	$ 456