SECURITIES, By Contractual Maturity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Amortized cost of available for sale securities by contractual maturity [Abstract]
Due in one year or less	$ 10,405
Due after one year through five years	14,823
Due after five years through ten years	5,131
Due after ten years	552
Mortgage-backed securities of government sponsored agencies	250,179
Available for sale, Amortized Cost	281,090
Fair value of available for sale securities by contractual maturity [Abstract]
Due in one year or less	10,390
Due after one year through five years	14,718
Due after five years through ten years	5,113
Due after ten years	547
Mortgage backed securities of government sponsored agencies	247,698
Available for sale, Fair Value	278,466	$ 288,607
Gain on disposition of securities	0	4	$ 0
Tax expense from gain on disposition of securities		1
Securities with an approximate carrying value pledged as collateral	$ 208,301	$ 207,832