Note 14 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Commitments To Extend Notional Amount	$ 3,630,304	$ 3,297,362
Commitments to Fund Fixed Rate Loans	93,100	111,400
Commitments to Fund Adjustable Rate Loans	$ 3,540,000	$ 3,190,000