LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2025 USD ($) component	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($) borrower
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans, Number of Components of Allowance for Credit Losses | component	2
Period of weighted average remaining life of loans in which economic forecast affects ACL	2 years
Beginning balance	$ 20,035,000	$ 19,208,000	$ 19,208,000
Charge-offs	(117,000)	(180,000)
Recoveries	26,000	35,000
Provision (credit) for credit losses on loans	228,000	960,000
Ending balance	20,172,000	20,023,000	20,035,000
Allowance for loan losses individually evaluated	189,000		122,000
Amortized cost with individual ACL	945,000		$ 258,000
Number of loans evaluated on individual basis | borrower			1
Financing Receivable, Allowance for Credit Loss, Collectively Evaluated	19,983,000		$ 19,913,000
Commercial | Commercial real estate - non-owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	11,964,000	12,010,000	12,010,000
Charge-offs	0	0
Recoveries	0	0
Provision (credit) for credit losses on loans	96,000	523,000
Ending balance	12,060,000	12,533,000	11,964,000
Allowance for loan losses individually evaluated	0		0
Commercial | Commercial real estate - owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	2,844,000	2,116,000	2,116,000
Charge-offs	0	0
Recoveries	0	0
Provision (credit) for credit losses on loans	(75,000)	602,000
Ending balance	2,769,000	2,718,000	2,844,000
Allowance for loan losses individually evaluated	47,000		122,000
Commercial | All other commercial loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	3,361,000	2,918,000	2,918,000
Charge-offs	0	(60,000)
Recoveries	1,000	20,000
Provision (credit) for credit losses on loans	232,000	702,000
Ending balance	3,594,000	3,580,000	3,361,000
Allowance for loan losses individually evaluated	142,000		0
Residential mortgage loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	1,356,000	1,764,000	1,764,000
Charge-offs	0	0
Recoveries	1,000	3,000
Provision (credit) for credit losses on loans	(76,000)	(998,000)
Ending balance	1,281,000	769,000	1,356,000
Consumer loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	510,000	400,000	400,000
Charge-offs	(117,000)	(120,000)
Recoveries	24,000	12,000
Provision (credit) for credit losses on loans	51,000	131,000
Ending balance	$ 468,000	$ 423,000	$ 510,000