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Retirement Plan (Schedule of Expected Benefit Payments) (Details) (Pension Plans, Defined Benefit, USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Pension Plans, Defined Benefit
 
Defined Benefit Plan Disclosure [Line Items]  
2013 $ 296
2014 374
2015 47
2016 150
2017 68
2018-2022 $ 3,412