SECURITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Amortized Cost, Available for sale:
Within one year	$ 11,349
One to five years	52,385
Five to ten years	86,485
Beyond ten years	380,337
Total	530,556	592,667
Fair Value, Available for sale:
Within one year	11,392
One to five years	52,274
Five to ten years	86,676
Beyond ten years	379,656
Estimated Fair Value	529,998us-gaap_AvailableForSaleSecurities	587,184us-gaap_AvailableForSaleSecurities
Amortized Cost, Held to maturity:
Within one year	17,627
One to five years	35,439
Five to ten years	55,092
Beyond ten years	103,522
Total	211,680us-gaap_HeldToMaturitySecurities	214,927us-gaap_HeldToMaturitySecurities
Fair Value, Held to maturity:
Within one year	17,664
One to five years	35,726
Five to ten years	57,403
Beyond ten years	104,579
Estimated Fair Value	$ 215,372	$ 216,289

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