Note 5 - DERIVATIVES AND HEDGING ACTIVITIES - Unhedged Interest Rate Caps and Swaps (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivative Assets	$ 183,888	$ 187,341
Derivative Liabilities.	211,677	215,735
Unhedged Derivatives | Interest rate swaps
Derivative Asset, Notional Amount	3,508,720	3,308,024
Derivative Assets	177,038	181,854
Derivative Liability, Notional Amount	3,508,720	3,308,024
Derivative Liabilities.	177,038	181,854
Unhedged Derivatives | Interest rate caps
Derivative Asset, Notional Amount	50,000
Derivative Assets	769	951
Unhedged Derivatives | Deposits, one
Derivative Asset, Notional Amount	$ 25,000
Derivative Assets		79
Unhedged Derivatives | Deposits, one | London Interbank Offered Rate (LIBOR)
Strike Rate	1.90%
Unhedged Derivatives | Deposits, four
Derivative Asset, Notional Amount	$ 25,000
Derivative Assets	$ 769	$ 872
Unhedged Derivatives | Deposits, four | London Interbank Offered Rate (LIBOR)
Strike Rate	1.90%