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Net Income per Common Share
 9 Months Ended
Oct. 31, 2012
Net Income per Common Share [Abstract]  
Net Income per Common Share

Note 4 – Net Income per Common Share

Basic net income per common share has been computed using the weighted average number of common shares outstanding during each period. Diluted net income per share is computed using the weighted average number of common shares and potential dilutive common shares, consisting of stock options and unvested restricted stock awards outstanding during the period. Approximately 245,393 and 154,777 shares of common stock have been excluded from the diluted net income per share calculation for the three and nine months ended October 31, 2012, respectively, as their inclusion would have been anti-dilutive. For the three and nine months ended October 31, 2011, there were no anti-dilutive shares excluded from the diluted per share calculation. For the nine months ended October 31, 2012 and 2011, 311,388 and 203,790 shares of common stock, respectively, were issued in connection with the exercise or vesting of equity awards.

A reconciliation between basic and diluted net income per share is as follows:

 

                                 
    Three Months Ended
October 31,		     Nine Months Ended
October 31,		  
    2012     2011     2012     2011  
    (In thousands, except per share amounts)  

Net income

   $ 48,291     $ 43,555     $ 48,805     $ 44,600  

Basic net income per share:

                                

Basic common shares

     20,053       19,845       19,971       19,804  
   

 

 

    

 

 

    

 

 

    

 

 

  

Basic net income per share

   $ 2.41     $ 2.19     $ 2.44     $ 2.25  
   

 

 

    

 

 

    

 

 

    

 

 

  

Diluted net income per share:

                                

Basic common shares

     20,053       19,845       19,971       19,804  

Stock options and restricted stock awards

     348       327       338       405  
   

 

 

    

 

 

    

 

 

    

 

 

  

Diluted common shares

     20,401       20,172       20,309       20,209  
   

 

 

    

 

 

    

 

 

    

 

 

  

Diluted net income per share

   $ 2.37     $ 2.16     $ 2.40     $ 2.21