Note 14 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Commitments To Extend Notional Amount	$ 3,808,620	$ 3,630,304
Commitments to Fund Fixed Rate Loans	130,300	93,100
Commitments to Fund Adjustable Rate Loans	$ 3,690,000	$ 3,540,000