FAIR VALUE - Summary of changes in fair value of loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	$ (270)	$ (787)
Mortgage loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	59	(673)
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	(20)	(20)
Loans held for investment, fair value option
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	$ (309)	$ (94)