LOANS AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details)	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($) borrower	Jan. 01, 2023 USD ($)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	$ 19,208,000	$ 16,615,000
Charge-offs	(1,716,000)	(356,000)
Recoveries	113,000	92,000
Provision (credit) for credit losses on loans	2,430,000	753,000
Ending balance	20,035,000	19,208,000
Allowance for loan losses: individually evaluated	122,000	$ 743,000	$ 751,000
Number of loans evaluated on individual basis | borrower		2
Financing Receivable, Allowance for Credit Loss, Collectively Evaluated	19,913,000	$ 18,465,000
Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	2,104,000
Ending balance		2,104,000
Commercial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Allowance for loan losses: individually evaluated	122,000	743,000
Commercial | Commercial real estate - non-owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	12,010,000	6,305,000
Charge-offs	(757,000)	0
Recoveries	0	0
Provision (credit) for credit losses on loans	711,000	1,942,000
Ending balance	11,964,000	12,010,000
Allowance for loan losses: individually evaluated	0	648,000
Commercial | Commercial real estate - non-owner occupied | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	3,763,000
Ending balance		3,763,000
Commercial | Commercial real estate - owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	2,116,000	1,942,000
Charge-offs	0	0
Recoveries	0	0
Provision (credit) for credit losses on loans	728,000	167,000
Ending balance	2,844,000	2,116,000
Allowance for loan losses: individually evaluated	122,000	5,000
Commercial | Commercial real estate - owner occupied | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	7,000
Ending balance		7,000
Commercial | All other commercial loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	2,918,000	4,142,000
Charge-offs	(630,000)	(12,000)
Recoveries	40,000	44,000
Provision (credit) for credit losses on loans	1,033,000	(1,168,000)
Ending balance	3,361,000	2,918,000
Allowance for loan losses: individually evaluated	0	90,000
Commercial | All other commercial loans | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	(88,000)
Ending balance		(88,000)
Residential mortgage loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	1,764,000	2,751,000
Charge-offs	0	(33,000)
Recoveries	6,000	11,000
Provision (credit) for credit losses on loans	(414,000)	(621,000)
Ending balance	1,356,000	1,764,000
Residential mortgage loans | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	(344,000)
Ending balance		(344,000)
Consumer loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	400,000	475,000
Charge-offs	(329,000)	(311,000)
Recoveries	67,000	37,000
Provision (credit) for credit losses on loans	372,000	433,000
Ending balance	510,000	400,000
Consumer loans | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	(234,000)
Ending balance		(234,000)
Unallocated
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	0	1,000,000
Charge-offs		0
Recoveries		0
Provision (credit) for credit losses on loans		0
Ending balance		0
Unallocated | Adoption of ASU 2016-13 (CECL)
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Beginning balance	$ (1,000,000)
Ending balance		$ (1,000,000)