Note 11 - FHLB Advances and Other Borrowings - Contractual Maturities and Average Effective Rates of Outstanding Advances (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Outstanding balance at end of period	$ 400,000		$ 400,000		$ 50,000
Weighted average interest rate at end of period	5.15%		5.15%		4.37%
Average outstanding balance during the period	$ 348,352	$ 0	$ 256,215	$ 0
Average interest rate during the period	4.56%	0.00%	4.48%	0.00%
Maximum outstanding at any month end during the period	$ 400,000	$ 0	$ 400,000	$ 0