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INVESTMENT SECURITIES - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) security contract	Dec. 31, 2022 USD ($) security	Dec. 31, 2021 USD ($)
Debt Securities, Available-for-sale [Line Items]
Cumulative OTTI		$ 0	$ 0
Gain (loss) on investments	$ (47,000)	10,000
Investment securities	513,519,000	513,728,000
Collateral Pledged
Debt Securities, Available-for-sale [Line Items]
Investment securities pledged to secure public funds	439,700,000	396,800,000
Equity securities
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on investments			$ 638,000
US Treasury Securities Sold
Debt Securities, Available-for-sale [Line Items]
Investment securities	$ 19,900,000
Number of investments securities sold | security	3
US States and Political Subdivisions Debt Securities Sold
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on investments	$ (44,000)
Investment securities	$ 2,200,000
Number of investments securities sold | contract	6
Investment securities
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on investments		32,000
Investment securities		$ 31,300,000
Number of investments securities sold | security		19
Non-agency CMOs
Debt Securities, Available-for-sale [Line Items]
Gain (loss) on investments		$ 171,000
Investment securities	$ 44,669,000	39,758,000
States and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Investment securities	$ 203,122,000	$ 197,414,000

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