SECURITIES, Securities with Unrealized Losses in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	$ 85,937	$ 200,564
12 months or more	17,193	8,750
Total	103,130	209,314
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(636)	(3,814)
12 months or more	(390)	(284)
Total	(1,026)	(4,098)
U.S. Government Sponsored Agency Securities [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	17,242	17,207
12 months or more	0	0
Total	17,242	17,207
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(74)	(174)
12 months or more	0	0
Total	(74)	(174)
U.S. Government Sponsored Agency MBS - Residential [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	56,820	157,022
12 months or more	5,234	0
Total	62,054	157,022
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(429)	(3,173)
12 months or more	(149)	0
Total	(578)	(3,173)
U.S. Government Sponsored Agency CMO's - Residential [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	11,256	18,374
12 months or more	11,184	8,750
Total	22,440	27,124
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(129)	(373)
12 months or more	(240)	(284)
Total	(369)	(657)
Obligations of States and Political Subdivisions [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	619	7,961
12 months or more	775	0
Total	1,394	7,961
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(4)	(94)
12 months or more	(1)	0
Total	$ (5)	$ (94)