XML 46 R16.htm IDEA: XBRL DOCUMENT v2.4.0.6
Earnings per Share
 6 Months Ended
Jul. 31, 2012
Earnings per Share [Abstract]  
Earnings per Share
10. Earnings per Share

Net income per basic common share is computed using the weighted average number of common shares outstanding during the period, excluding unvested restricted stock. Net income per diluted common share is computed using the weighted average number of common shares and dilutive potential common shares outstanding during the period using the treasury stock method. Potential common shares result from the assumed exercise of outstanding common stock options having a dilutive effect and from the assumed vesting of unvested shares of restricted stock.

The following table presents the calculation of basic and diluted weighted average common shares used in the earnings per share calculation:

 

                                 
    Three Months Ended
July 31,		     For the Six Months Ended
July 31,		  
    2012     2011     2012     2011  
    (in thousands)     (in thousands)  

Basic weighted average common shares outstanding

     12,665       10,970       12,646       10,447  
         

Stock options

     583       629       629       578  

Unvested restricted stock

     14       16       19       18  
   

 

 

    

 

 

    

 

 

    

 

 

  

Total weighted average common share equivalents

     597       645       648       596  
   

 

 

    

 

 

    

 

 

    

 

 

  

Diluted weighted average common shares outstanding

     13,262       11,615       13,294       11,043