SECURITIES (Details 1) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Amortized Cost, Available for sale:
Within one year	$ 7,873
One to five years	102,207
Five to ten years	137,268
Beyond ten years	599,275
Total	846,623	$ 834,564
Fair Value, Available for sale:
Within one year	7,871
One to five years	101,662
Five to ten years	135,246
Beyond ten years	591,213
Estimated Fair Value	835,992	819,722
Amortized Cost, Held to maturity:
Within one year	13,832
One to five years	37,901
Five to ten years	50,367
Beyond ten years	101,807
Total	203,907	223,237
Fair Value, Held to maturity:
Within one year	13,852
One to five years	38,225
Five to ten years	51,496
Beyond ten years	101,003
Estimated Fair Value	$ 204,576	$ 222,878