FAIR VALUE - RECONCILIATION USING SIGNIFICANT UNOBSERVABLE INPUTS (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Private label mortgage backed security
Assets measured on recurring basis, unobservable input reconciliation
Balance, beginning of period	$ 4,449	$ 4,777
Net change in unrealized gain	(2)	53
Recovery of actual losses previously recorded	38
Principal paydowns	(365)	(148)
Balance, end of period	4,120	4,682
Trust preferred security
Assets measured on recurring basis, unobservable input reconciliation
Balance, beginning of period	3,600	3,200
Discount accretion	10	11
Net change in unrealized gain	290	(11)
Balance, end of period	$ 3,900	$ 3,200