SECURITIES (Details 2) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Amortized Cost, Available for sale:
Within one year	$ 16,584
One to five years	62,437
Five to ten years	105,846
Beyond ten years	257,751
Total	442,618	431,931
Fair Value, Available for sale:
Within one year	16,699
One to five years	63,846
Five to ten years	107,322
Beyond ten years	261,626
Estimated Fair Value	449,493	441,439
Amortized Cost, Held to maturity:
Within one year	46,915
One to five years	37,894
Five to ten years	33,731
Beyond ten years	59,382
Total	177,922	169,153
Fair Value, Held to maturity:
Within one year	46,998
One to five years	38,090
Five to ten years	33,796
Beyond ten years	61,460
Estimated Fair Value	$ 180,344	$ 170,952