Annual report pursuant to Section 13 and 15(d)

Supplemental Retirement Plan and Related Post Retirement Benefits (Details 2)

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Supplemental Retirement Plan and Related Post Retirement Benefits (Details 2) (SERP [Member], USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
SERP [Member]
     
Net periodic pension cost for defined benefit plans      
Service Cost - Benefits Earned During Period $ 303 $ 46 $ 38
Interest Cost 548 328 330
Amortization of Prior Service Cost 426 109 109
Amortization of Losses 91 11  
Net Periodic Cost $ 1,368 $ 494 $ 477