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Fair Value (Amount Of Gains And Losses From Changes In Fair Value Included In Earnings) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Fair Value [Abstract]    
Interest income $ 16 $ 5
Change in fair value (16) 11
Total change in fair value $ 32 $ (6)