LINES OF CREDIT (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
LINES OF CREDIT [Abstract]
Line of credit facility, current borrowing capacity	$ 15,000,000	$ 15,000,000
FHLB, lines of credit, available	$ 205,600,000	205,100,000
FHLB, description of collateral	The Bank has pledged as collateral, under a blanket lien, all qualifying residential loans under borrowing agreements with the Federal Home Loan Bank.
Line of credit facility, commitment fee percentage	0.08%
FHLB, short-term credit, outstanding	$ 15,700,000	$ 0