LOANS - Capitalized mortgage servicing rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Servicing Rights
Beginning of year	$ 1,959	$ 1,601	$ 1,435
Additions	489	1,094	956
Amortized to expense	(681)	(736)	(790)
End of year	$ 1,767	$ 1,959	$ 1,601