DERIVATIVE FINANCIAL INSTRUMENTS - (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) item	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)
Derivative Financial Instruments
Net impact	$ 18,000	$ 14,000
Asset pledged
Derivative Financial Instruments
Margin Deposit Assets	1,360,000
Interest rate swap agreements
Derivative Financial Instruments
Aggregate notional amount	$ 150,028,000	155,214,000
One Interest rate Swap Originated
Derivative Financial Instruments
Aggregate notional amount		$ 24,000,000
Number of derivative instruments originated | item	0	1
One Interest rate Swap Originated | Non interest income
Derivative Financial Instruments
Fee income		$ 290,000
RPA Out
Derivative Financial Instruments
Asset Derivatives, Notional Amount	$ 7,082,000	7,200,000
Asset Derivatives, Fair Value	11,000	0
Liability Derivatives, Notional Amount	0	0
Liability Derivatives, Fair Value	0	0
RPA In
Derivative Financial Instruments
Asset Derivatives, Notional Amount	0	0
Asset Derivatives, Fair Value	0	0
Liability Derivatives, Notional Amount	10,000,000	10,000,000
Liability Derivatives, Fair Value	13,000	19,000
Derivatives not designated as hedging instruments
Derivative Financial Instruments
Asset Derivatives, Notional Amount	75,014,000	77,607,000
Asset Derivatives, Fair Value	2,783,000	3,638,000
Liability Derivatives, Notional Amount	75,014,000	77,607,000
Liability Derivatives, Fair Value	2,783,000	3,638,000
Derivatives not designated as hedging instruments | Interest rate swap agreements
Derivative Financial Instruments
Interest rate swap	0
Increase (decrease) in interest income	$ 1,796,000	$ 342,000	$ 1,347,000