LOANS - Capitalized mortgage servicing rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Servicing rights:
Beginning of year	$ 1,767	$ 1,959	$ 1,601
Additions		489	1,094
Amortized to expense	(556)	(681)	(736)
End of year	$ 1,211	$ 1,767	$ 1,959