INVESTMENT SECURITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Securities available for sale:
Due in one year or less, Amortized cost	$ 39,735	$ 30,365
Due from one to five years, Amortized cost	304,549	294,557
Due from five to ten years, Amortized cost	275,617	313,733
Due after ten years, Amortized cost	33,017	32,484
Equity Securities, Amortized cost	2,819	3,017
Amortized Cost	655,737	674,156
Due in one year or less, Fair value	39,993	30,536
Due from one to five years, Fair value	307,311	295,252
Due from five to ten years, Fair value	275,031	311,313
Due after ten years, Fair value	33,177	32,455
Equity Securities, Fair value	2,811	2,865
Fair value	658,323	672,421	[1]
Securities held to maturity:
Due after one year through five years, Amortized Cost	25,981	20,177
Due after five years through ten years, Amortized Cost	9,903	15,836
Due after ten years, Amortized Cost	3,627	3,607
Amortized cost	39,511	39,620
Due after one year through five years, Fair Value	26,662	20,747
Due after five years through ten years, Fair Value	10,120	16,092
Due after ten years, Fair Value	3,825	3,747
Fair value	$ 40,607	$ 40,586

[1] Derived from the audited consolidated financial statements included in the Company's 2014 Annual Report on Form 10-K.