NOTE 5 - DERIVATIVES AND HEDGING ACTIVITIES - Hedged Interest Rate Swaps and Non-hedged Interest Rate Swaps (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Derivative [Line Items]
Swapped loan portfolio loan-to-value percentage, including the potential swap exposure	65.00%
Interest rate swaps
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	$ 270,302	$ 271,029
Interest rate swaps | Cash
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	84,081	81,131
Interest rate swaps | U.S. govt. sponsored agency securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	11,210	11,268
Interest rate swaps | Municipal securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	138,695	142,065
Interest rate swaps | Residential mortgage-backed and related securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	$ 36,316	$ 36,565