Note 22 - Segments - Financial Information by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Net interest income	$ 48,760	$ 37,825
Provision for credit losses	2,279	(1,475)
All other non-interest income	10,734	7,596
Non-interest expenses	56,297	24,973
Income before income tax expense	9,387	28,171
Income tax expense	1,445	5,461
Net income	7,942	22,710
Less net income attributable to NCI	36	0
Net income attributable to stockholders	7,906	22,710
Segment assets	7,777,152	4,794,075	$ 6,646,025
Fiduciary and Trust [Member]
Wealth management and trust services	8,469	6,248
Commercial Banking [Member]
Net interest income	48,653	37,742
Provision for credit losses	2,279	(1,475)
All other non-interest income	10,734	7,596
Non-interest expenses	51,690	21,696
Income before income tax expense	5,418	25,117
Income tax expense	633	4,798
Net income	4,785	20,319
Less net income attributable to NCI	0	0
Net income attributable to stockholders	4,785	20,319
Segment assets	7,744,189	4,790,344
Commercial Banking [Member] | Fiduciary and Trust [Member]
Wealth management and trust services	0	0
Investment Management and Trust [Member]
Net interest income	107	83
Provision for credit losses	0	0
All other non-interest income	0	0
Non-interest expenses	4,607	3,277
Income before income tax expense	3,969	3,054
Income tax expense	812	663
Net income	3,157	2,391
Less net income attributable to NCI	36	0
Net income attributable to stockholders	3,121	2,391
Segment assets	32,963	3,731
Investment Management and Trust [Member] | Fiduciary and Trust [Member]
Wealth management and trust services	$ 8,469	$ 6,248