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ALLOWANCE FOR CREDIT LOSSES - LOANS - Allowance for credit losses by loan portfolio segment (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	$ 13,912,000	$ 15,053,000	$ 13,912,000	$ 15,053,000	$ 10,743,000
CHARGE- OFFS			(2,205,000)	(3,641,000)
RECOVERIES			182,000	184,000
PROVISION (RECOVERY)	1,000,000		882,000	6,563,000
ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	1,200,000		1,200,000
Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					1,204,000
Other commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	2,860,000	3,030,000	2,860,000	3,030,000
CHARGE- OFFS			(427,000)	(480,000)
RECOVERIES			45,000	3,000
PROVISION (RECOVERY)			212,000	599,000
Other commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					2,908,000
Other commercial real estate (non-owner occupied)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	3,451,000	3,428,000	3,451,000	3,428,000	5,972,000
CHARGE- OFFS			(1,571,000)	(804,000)
RECOVERIES			11,000	14,000
PROVISION (RECOVERY)			1,583,000	1,022,000
Other commercial real estate (non-owner occupied) | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					(2,776,000)
Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	839,000	1,021,000	839,000	1,021,000	1,380,000
CHARGE- OFFS			0	(54,000)
RECOVERIES			18,000	14,000
PROVISION (RECOVERY)			(200,000)	36,000
Residential mortgages | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					(355,000)
Allocation for general risk
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					653,000
Allocation for general risk | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					(653,000)
Commercial Portfolio Segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
CHARGE- OFFS			(1,998,000)	(3,312,000)
Commercial Portfolio Segment | Commercial real estate (owner occupied)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	398,000	1,529,000	398,000	1,529,000
CHARGE- OFFS			0
RECOVERIES			24,000	24,000
PROVISION (RECOVERY)			(1,155,000)	125,000
Commercial Portfolio Segment | Commercial real estate (owner occupied) | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					1,380,000
Commercial Portfolio Segment | Other commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
CHARGE- OFFS		(405,000)	(427,000)	(480,000)
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	3,695,000	3,488,000	3,695,000	3,488,000
CHARGE- OFFS			0	(2,028,000)
RECOVERIES			0
PROVISION (RECOVERY)			207,000	4,084,000
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - retail | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					1,432,000
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	1,478,000	1,430,000	1,478,000	1,430,000
CHARGE- OFFS			0
RECOVERIES			3,000	6,000
PROVISION (RECOVERY)			45,000	198,000
Commercial Portfolio Segment | Commercial real estate (non-owner occupied) - multi-family | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					1,226,000
Commercial Portfolio Segment | Other commercial real estate (non-owner occupied)
Accounts, Notes, Loans and Financing Receivable [Line Items]
CHARGE- OFFS			(1,571,000)	(804,000)
Commercial Portfolio Segment | Commercial (owner occupied real estate and other)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					2,653,000
Commercial Portfolio Segment | Commercial (owner occupied real estate and other) | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					(2,653,000)
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
CHARGE- OFFS			(207,000)	(329,000)
Consumer | Residential mortgages
Accounts, Notes, Loans and Financing Receivable [Line Items]
CHARGE- OFFS				(54,000)
Consumer | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans	$ 1,191,000	$ 1,127,000	1,191,000	1,127,000	85,000
CHARGE- OFFS			(207,000)	(275,000)
RECOVERIES			81,000	123,000
PROVISION (RECOVERY)			$ 190,000	$ 499,000
Consumer | Consumer | Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-13
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for credit losses - Loans					$ 695,000

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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