INVESTMENT SECURITIES (Available-For-Sale Securities and Held-to-Maturity, Continuous Unrealized Loss Position, Fair Value) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	$ 134,172	$ 112,803
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	1,153	1,616
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	34,837	9,208
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	742	367
Available-for-sale securities, continuous unrealized loss position, fair value	169,009	122,011
Available-for-sale securities, continuous unrealized loss position, unrealized losses	1,895	1,983
Equity [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value		640
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses		12
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	666
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	8
Available-for-sale securities, continuous unrealized loss position, fair value	666	640
Available-for-sale securities, continuous unrealized loss position, unrealized losses	8	12
U.S. Government Agencies [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	37,550	11,926
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	453	58
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	5,956
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	44	104
Available-for-sale securities, continuous unrealized loss position, fair value	43,506	11,926
Available-for-sale securities, continuous unrealized loss position, unrealized losses	497	162
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, fair value		2,115
Held-to-maturity securities, continuous unrealized loss position, less than 12 Months, unrealized losses		78
Held-to-maturity securities, continuous unrealized loss position, fair value		2,115
Held-to-maturity securities, continuous unrealized loss position, unrealized losses		78
Mortgage-backed [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value	96,622	100,237
Available-for-sale securities, continuous unrealized loss position, less than 12 Months, unrealized losses	700	1,546
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, fair value	28,215	9,208
Available-for-sale securities, continuous unrealized loss position, more than 12 Months, unrealized losses	690	263
Available-for-sale securities, continuous unrealized loss position, fair value	124,837	109,445
Available-for-sale securities, continuous unrealized loss position, unrealized losses	$ 1,390	$ 1,809