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Securities Available For Sale (Schedule Of Realized Gains And Losses And Other-Than-Temporary Impairment Losses On Securities) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2010
Securities Available For Sale [Abstract]        
Proceeds from Sale of Securities Available for Sale $ 13,160 $ 9,089 $ 24,233 $ 22,473
Realized Gains 683 535 1,256 1,320
Realized Losses 13   19  
Other than Temporary Impairment Losses 336 589 680 1,154
Securities Gains and Losses, Net $ 334 $ (54) $ 557 $ 166