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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Reconciliation Of Basic And Diluted Earnings Per Share
    Three Months Ended   Six Months Ended
    June 30,   June 30,
    2013   2012   2013   2012
 
Net income $ 3,170 $ 3,105 $ 6,386 $ 6,268
 
Weighted average common shares outstanding                
Basic   3,929,592 3,891,476   3,926,671 3,885,764
Effect of dilutive employee stock options   18,491   27,376   18,594   18,763
Diluted   3,948,083 3,918,852   3,945,265 3,904,527
 
Anti-dilutive options excluded from earnings per share calculation   48,500   9,000   48,500   14,000
 
Per Common Share Data:                
Basic earnings per share $ 0.81 $ 0.80 $ 1.63 $ 1.61
Diluted earnings per share $ 0.80 $ 0.79 $ 1.62 $ 1.61