SECURITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Amortized Cost, Available for sale:
Within one year	$ 14,922
One to five years	36,688
Five to ten years	151,739
Beyond ten years	437,616
Total	640,965	595,067
Fair Value, Available for sale:
Within one year	15,013
One to five years	36,947
Five to ten years	146,035
Beyond ten years	428,737
Estimated Fair Value	626,732	575,179
Amortized Cost, Held to maturity:
Within one year	27,107
One to five years	42,301
Five to ten years	34,537
Beyond ten years	112,098
Total	216,043	201,328
Fair Value, Held to maturity:
Within one year	27,163
One to five years	42,397
Five to ten years	34,873
Beyond ten years	109,411
Estimated Fair Value	$ 213,844	$ 197,339