ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) security_loan	Dec. 31, 2023 USD ($) security_loan	Dec. 31, 2022 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan workout and other credit costs	$ 2,123	$ 852	$ 702
Various Modifications
Accounts, Notes, Loans and Financing Receivable [Line Items]
Unused commitments to extend credit	$ 18,600	$ 18,400
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans in the process of foreclosure | security_loan	31	31
Total loans outstanding, residential loans	$ 5,600	$ 3,200
Commercial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans in the process of foreclosure | security_loan	15	9
Total loans outstanding, residential loans	$ 6,600	$ 1,100
Residential and Consumer Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan workout and other credit costs	$ 1,700	$ 600	$ 400
Impairment loans, charge off period (in days)	90 days