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Securities (Schedule Of Gross Realized Gains And Losses) (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Gain (Loss) on Investments [Line Items]        
Realized gains, available for sale securities $ 10 $ 43 $ 26 $ 43
Realized gains, held to maturity securities            
Gross realized gains and losses $ 10 $ 43 $ 26 $ 43