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Investment Securities (Schedule Of Unrealized Loss On Securities) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Schedule of Investments [Line Items]    
Securities Available-for-Sale, Less than 12 months, Fair value $ 10,475  
Securities Available-for-Sale, Less than 12 months, Unrealized losses 48  
Securities Available-for-Sale, 12 months or longer, Fair value     
Securities Available-for-Sale, 12 months or longer, Unrealized losses     
Securities Available-for-Sale, Fair value, Total 10,475  
Securities Available-for-Sale, Unrealized losses, Total 48  
Obligations Of U.S. Treasury And Other U.S. Government Sponsored Entities [Member]
   
Schedule of Investments [Line Items]    
Securities Available-for-Sale, Less than 12 months, Fair value     
Securities Available-for-Sale, Less than 12 months, Unrealized losses     
Securities Available-for-Sale, 12 months or longer, Fair value     
Securities Available-for-Sale, 12 months or longer, Unrealized losses     
Securities Available-for-Sale, Fair value, Total     
Securities Available-for-Sale, Unrealized losses, Total     
Other Equity Securities [Member]
   
Schedule of Investments [Line Items]    
Securities Available-for-Sale, Less than 12 months, Fair value 46   
Securities Available-for-Sale, Less than 12 months, Unrealized losses 3   
Securities Available-for-Sale, 12 months or longer, Fair value    80
Securities Available-for-Sale, 12 months or longer, Unrealized losses    32
Securities Available-for-Sale, Fair value, Total 46 80
Securities Available-for-Sale, Unrealized losses, Total 3 32
U.S. Government Sponsored Entities Asset-Backed Securities [Member]
   
Schedule of Investments [Line Items]    
Securities Held-to-Maturity, Less than 12 months, Fair value 10,429   
Securities Held-to-Maturity, Less than 12 months, Unrealized losses 45   
Securities Held-to-Maturity, 12 months or longer, Fair value    38,775
Securities Held-to-Maturity, 12 months or longer, Unrealized losses    32
Securities Held-to-Maturity, Fair value, Total 10,429 38,775
Securities Held-to-Maturity, Unrealized losses, Total $ 45 $ 32