DEBT SECURITIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) loan	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) fund
Debt Securities, Available-for-sale [Line Items]
Net amortization of premiums and discounts	$ 100,000	$ 0.0
Number of bank technology funds | fund			2
Return of capital, received	300,000	100,000
Debt securities pledged as collateral	$ 31,100,000	$ 45,100,000
Shareholder equity held by one issuer (as a percent)	10.00%	10.00%
Securities sold	$ 0	$ 0
Accrued interest receivable	10,364,000	11,428,000
Bank Technology Fund
Debt Securities, Available-for-sale [Line Items]
Contractual obligation			$ 6,000,000
Payments to partnership fund	500,000
Balance with SBIC included in other assets	2,500,000	2,000,000
Committed investments to be made in the future	3,500,000
Debt securities pledged as collateral		39,300,000
Bank Technology Fund | Other assets
Debt Securities, Available-for-sale [Line Items]
Contribution to committed investments		800,000
Small Business Investment Company ("SBIC")
Debt Securities, Available-for-sale [Line Items]
Contractual obligation	600,000
Small Business Investment Company ("SBIC") | Other assets
Debt Securities, Available-for-sale [Line Items]
Contribution to committed investments	200,000	200,000
Balance with SBIC included in other assets	2,400,000	2,200,000
Corporate Debt Securities
Debt Securities, Available-for-sale [Line Items]
Accrued interest receivable	$ 300,000	$ 400,000
Number of loans | loan	0