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Earnings Per Common Share (EPS)
6 Months Ended
Jun. 30, 2011
Earnings Per Common Share [Abstract]  
Earnings Per Common Share (EPS)
4.   Earnings Per Common Share (EPS)
    Basic EPS is calculated using net income divided by the weighted average of common shares outstanding. Diluted EPS is similar to Basic EPS except that the weighted average number of common shares outstanding is increased to include the number of additional common shares that would have been outstanding if the potential dilutive common shares, such as those             shares subject to options, had been issued.
    Shares used in the calculation of diluted EPS are summarized below:
                 
    Three Months Ended  
    June 30, 2011     June 30, 2010  
Weighted average common shares outstanding
    1,982,869       1,972,447  
Dilutive effect of stock options
    4,793       1,711  
 
           
Weighted average common and common equivalent shares outstanding
    1,987,662       1,974,158  
 
           
                 
    Six Months Ended  
    June 30, 2011     June 30, 2010  
Weighted average common shares outstanding
    1,979,714       1,969,767  
Dilutive effect of stock options
    4,326       820  
 
           
Weighted average common and common equivalent shares outstanding
    1,984,040       1,970,587  
 
           
    Options to purchase 5,000 shares of common stock with a weighted average price of $8.08 were outstanding during the six months ended June 30, 2011, but were excluded from the computation of common share equivalents because they were anti-dilutive. There were no anti-dilutive options outstanding during the quarter ended June 30, 2011. For the three and six months ended June 30, 2010, options to purchase 16,250 shares of common stock with a weighted average price of $7.89 were outstanding, but were excluded from the computation of common share equivalents because they were anti-dilutive.