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PREMISES AND EQUIPMENT - Additional information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
PREMISES AND EQUIPMENT
Operating leases right of use asset	$ 5,616,000		$ 5,616,000		$ 6,390,000
Operating leases liability	$ 5,822,000		$ 5,822,000		$ 6,621,000
Weighted-average lease term	6 years 3 months 18 days		6 years 3 months 18 days
Operating lease, weighted average discount rate, percent	3.99%		3.99%
Operating lease, expense	$ 433,000	$ 408,000	$ 1,254,000	$ 1,303,000
Lease expense related to ATMs	82,000	87,000	237,000	258,000
Income recognized from lessor agreements	$ 369,000	$ 303,000	$ 1,000,000	$ 984,000
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Occupancy, Net	Occupancy, Net	Occupancy, Net	Occupancy, Net
Minimum
PREMISES AND EQUIPMENT
Lessee expected lease terms			P1Y9M18D
Maximum
PREMISES AND EQUIPMENT
Lessee expected lease terms			P13Y2M12D

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Amount of lease cost recognized by lessee for lease contract.

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Amount of operating lease expense. Excludes sublease income.

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Indicates line item in statement of income or comprehensive income that includes operating lease income.

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Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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