OTHER REAL ESTATE OWNED - Summary of Activity in Other Real Estate Owned (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Other Real Estate [Roll Forward]
Balance, January 1	$ 8,464	$ 10,874
Loans transferred to other real estate owned	4,124	4,372
Net gains (losses) on sale and write-downs recorded in statement of income	(611)	(862)
Sales proceeds	(4,697)	(5,920)
Other	(62)	0
Ending balance	$ 7,218	$ 8,464