BORROWINGS - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) fund	Dec. 31, 2023 USD ($)
BORROWINGS
Borrowings from FHLB	$ 10,000,000.0
Repayments of debt	41,000,000.0
Remaining net balance	0
Borrowings from FHLB	$ 55,000,000	$ 122,172,000
Number of unsecured federal funds lines of credit | fund	2
Amount outstanding	$ 0	0
Interest expenses	$ 2,700,000	2,700,000
Bank Technology Fund
BORROWINGS
Debt securities held to maturity par value pledged as collateral		44,300,000
PPPLF
BORROWINGS
Interest bearing rate (as a percent)	0.35%
Face amount	$ 2,000,000.0	3,500,000
PPPLF | Minimum
BORROWINGS
Debt term (in years)	2 years
PPPLF | Maximum
BORROWINGS
Debt term (in years)	5 years
Federal Funds Lines of Credit One
BORROWINGS
Maximum borrowing capacity	$ 10,000,000.0
Federal Funds Lines of Credit Two
BORROWINGS
Maximum borrowing capacity	19,000,000.0
FHLB
BORROWINGS
Amount of collateral pledged	1,300,000,000	1,310,000,000
Borrowings from FHLB	582,000,000.0
March 27, 2024
BORROWINGS
Borrowings from FHLB		31,000,000.0
Borrowings from FHLB	0	30,997,000
October 1, 2024
BORROWINGS
Borrowings from FHLB	50,000,000
January 2, 2025
BORROWINGS
Borrowings from FHLB	$ 50,000,000	$ 0
Interest bearing rate (as a percent)	0.155%