FAIR VALUE - Summary of changes in fair value of loans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	$ (53)	$ (661)	$ (602)	$ (752)
Mortgage loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	(163)	(556)	(35)	(975)
Loans held for sale
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	0	0	(20)	0
Loans held for investment
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of loans	$ 110	$ (105)	$ (547)	$ 223