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Earnings Per Share
 3 Months Ended
Mar. 31, 2012
Earnings (Loss) Per Share [Abstract]  
Earnings (Loss) Per Share
14. Earnings Per Share
 
The computations of Basic and Diluted Earnings per Share were as follows:
 
   
Three Months Ended
 
   
March 31
 
   
2012
  
2011
 
Numerator:
      
Net Earnings
 $5,324  $5,866 
Denominator:
        
Basic - Weighted Average Shares Outstanding
  18,722,156   18,963,177 
Effect of dilutive securities:
        
Employee stock options
  506,116   592,859 
Diluted - Weighted Average Shares Outstanding
  19,228,272   19,556,036 
Basic Earnings per Share
 $0.28  $0.31 
Diluted Earnings per Share
 $0.28  $0.30 
 
Excluded from the dilutive securities shown above were options to purchase 177,414 and 83,368 shares of Common Stock during the three months ended March 31, 2012 and 2011, respectively. These exclusions are made if the exercise prices of these options are greater than the average market price of our Common Stock for the period, if the number of shares we can repurchase exceeds the weighted shares outstanding in the options, or if we have a net loss, as the effects are anti-dilutive.