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Stock Option Plan (Summary Of Stock Option Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Oct. 21, 2009
Stock Option Plan [Abstract]      
Options outstanding, January 1, 2012, Shares 216,886    
Exercised, Shares (10,307) (18,672)  
Forfeited, Shares (31,213)    
Options outstanding, December 31, 2012, Shares 175,366 216,886  
Options exercisable, December 31 2012, Shares 175,366    
Options outstanding, January 1, 2012, Weighted Average Exercise Price $ 8.83    
Exercised, Weighted Average Exercise Price $ 5.20    
Forfeited, Weighted Average Exercise Price $ 5.36    
Options outstanding, December 31, 2012, Weighted Average Exercise Price $ 9.66 $ 8.83  
Options exercisable, December 31, 2012, Weighted Average Exercise Price $ 9.66    
Options outstanding, December 31, 2012, Weighted Average Remaining Contractual Life (in years) 2 years 1 month 6 days    
Options exercisable, December 31, 2012, Weighted Average Remaining Contractual Life (in years) 2 years 1 month 6 days    
Shares not granted     25,832
In-the-money options exercised $ 5 $ 9