DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Cumulative basis adjustment for fair value hedges (Details) - Designated as hedging instruments - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Available-for-sale - Municipals
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Closed Portfolio Amount	$ 50,653	$ 50,964
Cumulative amount of fair value hedging adjustment included in the carrying amount of assets	(375)	(1,230)
Available-for-sale - MBS
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Closed Portfolio Amount	32,821	35,806
Cumulative amount of fair value hedging adjustment included in the carrying amount of assets	(122)	(407)
Interest rate swaps
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Closed Portfolio Amount	218,352	86,770
Interest rate swaps notional amount	125,000	50,000
Cumulative amount of fair value hedging adjustment included in the carrying amount of assets	326	$ (1,637)
Loans | Interest rate swaps
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Closed Portfolio Amount	134,878
Cumulative amount of fair value hedging adjustment included in the carrying amount of assets	$ 823