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SUPPLEMENTAL EXECUTIVE RETIREMENT PLAN (Details) (Supplemental Executive Retirement Plan [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
participant
Sep. 30, 2012
Sep. 30, 2013
participant
Sep. 30, 2012
Supplemental Executive Retirement Plan [Member]
       
Defined Benefit Plan Disclosure [Line Items]        
Number of participants 5   5  
Components of net periodic pension cost [Abstract]        
Service cost $ 162 $ 144 $ 485 $ 432
Interest cost 85 96 257 288
Amortization of prior service cost 146 146 438 438
Amortization of actuarial loss 23 2 70 7
Total net periodic benefit cost $ 416 $ 388 $ 1,250 $ 1,165