SECURITIES, With Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	$ 152,809	$ 200,564
12 months or more	76,359	8,750
Total	229,168	209,314
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(1,201)	(3,814)
12 months or more	(1,901)	(284)
Total	(3,102)	(4,098)
U.S. Government Sponsored Agency Securities [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	6,780	17,207
12 months or more	10,335	0
Total	17,115	17,207
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(41)	(174)
12 months or more	(138)	0
Total	(179)	(174)
U.S. Government Sponsored Agency MBS - Residential [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	134,211	157,022
12 months or more	47,682	0
Total	181,893	157,022
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(1,076)	(3,173)
12 months or more	(1,140)	0
Total	(2,216)	(3,173)
U.S. Government Sponsored Agency CMO's - Residential [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	8,306	18,374
12 months or more	17,868	8,750
Total	26,174	27,124
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(64)	(373)
12 months or more	(617)	(284)
Total	(681)	(657)
Obligations of States and Political Subdivisions [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	3,512	7,961
12 months or more	474	0
Total	3,986	7,961
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(20)	(94)
12 months or more	(6)	0
Total	$ (26)	$ (94)