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Pension Plan (Schedule of Expected Benefit Payments) (Details) (Pension Benefits [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Pension Benefits [Member]
 
Expected future benefit payments under the plans:  
2013 $ 201
2014 206
2015 230
2016 234
2017 240
2018 - 2022 $ 1,214