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DERIVATIVES AND HEDGING ACTIVITIES - Non-designated Hedges (Details) - Nondesignated Hedges	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) contract loan	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) contract loan	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) contract loan
DERIVATIVES AND HEDGING ACTIVITIES
Gains (losses) on fair value hedges recognized in earnings | $	$ 55,000	$ 88,000	$ (234,000)	$ (385,000)
Commercial customers
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps | $	109,900,000		109,900,000		$ 107,000,000.0
Interest rate contract | Third parties
DERIVATIVES AND HEDGING ACTIVITIES
Total notional amount of the swaps | $	$ 109,900,000		$ 109,900,000		$ 107,000,000
Interest rate swaps
DERIVATIVES AND HEDGING ACTIVITIES
Number of participation loans purchased | loan	1		1		1
Participating mortgage loans, mortgage obligations amount | $	$ 8,700,000		$ 8,700,000		$ 8,800,000
Interest rate swaps | Third parties
DERIVATIVES AND HEDGING ACTIVITIES
Number of interest rate derivatives held | contract	6		6		6
Interest rate swaps | Commercial customers
DERIVATIVES AND HEDGING ACTIVITIES
Number of interest rate derivatives held | contract	6		6		6
Interest rate cap | Third parties
DERIVATIVES AND HEDGING ACTIVITIES
Number of interest rate derivatives held | contract	1		1		1
Interest rate cap | Commercial customers
DERIVATIVES AND HEDGING ACTIVITIES
Number of interest rate derivatives held | contract	1		1		1

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-Topic 815
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

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