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Investments (Gross Unrealized Losses And Fair Value Of The Bank's Investments) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Gain (Loss) on Investments [Line Items]    
Fair Value, Less than 12 months $ 33,318 $ 10,995
Unrealized Losses, Less than 12 months 2,471 170
Fair Value, More than 12 months      
Unrealized Losses, More than 12 months      
Fair Value, Total 33,318 10,995
Unrealized Losses, Total 2,471 170
US Treasuries [Member]
    
Gain (Loss) on Investments [Line Items]    
Fair Value, Less than 12 months 3,736  
Unrealized Losses, Less than 12 months 167  
Fair Value, More than 12 months     
Unrealized Losses, More than 12 months     
Fair Value, Total 3,736  
Unrealized Losses, Total 167  
US Agency Obligations [Member]
    
Gain (Loss) on Investments [Line Items]    
Fair Value, Less than 12 months 15,480 9,116
Unrealized Losses, Less than 12 months 1,418 95
Fair Value, More than 12 months      
Unrealized Losses, More than 12 months      
Fair Value, Total 15,480 9,116
Unrealized Losses, Total 1,418 95
Municipals [Member]
    
Gain (Loss) on Investments [Line Items]    
Fair Value, Less than 12 months 12,211 1,879
Unrealized Losses, Less than 12 months 765 75
Fair Value, More than 12 months      
Unrealized Losses, More than 12 months      
Fair Value, Total 12,211 1,879
Unrealized Losses, Total 765 75
Other (Corporates) [Member]
    
Gain (Loss) on Investments [Line Items]    
Fair Value, Less than 12 months 1,891  
Unrealized Losses, Less than 12 months 121  
Fair Value, More than 12 months     
Unrealized Losses, More than 12 months     
Fair Value, Total 1,891  
Unrealized Losses, Total $ 121