INVESTMENT SECURITIES - Additional Information (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Securities	$ 434,600,000				$ 453,700,000				$ 434,600,000	$ 453,700,000
Held to maturity security carrying value	107,755,000				102,291,000				107,755,000	102,291,000
Other than temporary impairment charges											$ 0
Investment with fair value classified as equity security	13,166,000				12,985,000				13,166,000	12,985,000
Fair value adjustment for CRA equity security	585,000	$ (404,000)	$ (209,000)	$ 209,000	28,000	$ (571,000)	$ (475,000)	$ (682,000)	181,000	(1,700,000)	(432,000)
CRA Investment Fund [Member]
Schedule Of Available For Sale Securities [Line Items]
Investment with fair value classified as equity security	$ 13,200,000				$ 13,000,000.0				13,200,000	13,000,000.0
Fair value adjustment for CRA equity security									$ 181,000	$ (1,700,000)	$ (432,000)