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Retirement Benefit Plans (Summary Of Net Periodic Benefit Costs) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Retirement Benefit Plans [Abstract]      
Benefit obligation at beginning of year $ 3,916 $ 3,349  
Service cost 209 173 49
Interest cost 120 131 190
Actuarial (gain) loss on supplemental retirement plans (147) 469  
Benefits and expenses paid (216) (206)  
Benefit obligation at end of year 3,882 3,916 3,349
Contributions 216 206  
Funded status at end of year $ (3,882) $ (3,916)