NOTE 5 - DERIVATIVES AND HEDGING ACTIVITIES - Hedged Interest Rate Swaps and Non-hedged Interest Rate Swaps (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 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	$ 157,881	$ 271,029
Interest rate swaps | Cash
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	4,187	81,131
Interest rate swaps | U.S. govt. sponsored agency securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	10,861	11,268
Interest rate swaps | Municipal securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	123,777	142,065
Interest rate swaps | Residential mortgage-backed and related securities
Derivative [Line Items]
Interest rate swaps collateralized by investment securities	$ 19,056	$ 36,565