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Capital stock
 12 Months Ended
Mar. 31, 2012
Capital stock [Abstract]  
Capital stock

10.

  

Capital stock:

The Company has two classes of common stock outstanding: Class A and Class B. Class A voting shares receive one vote per share. The Class B multiple voting shares have substantially the same rights as the Class A voting shares except that each share of Class B multiple voting shares receives 10 votes per share.

 

                                                 
    Class A common stock     Class B common stock     Total common stock  
    Number
of Shares		     Amount     Number
of Shares		     Amount     Number
of Shares		     Amount  

Balance as of March 27, 2010

     3,672,407     $ 22,282       7,717,970     $ 38,613       11,390,377     $ 60,895  

Exercise of stock options

     128       –       –       –       128       –  
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  

Balance as of March 26, 2011

     3,672,535       22,282       7,717,970       38,613       11,390,505       60,895  

Exercise of stock options

     1,080       1       –       –       1,080       1  
   

 

 

    

 

 

    

 

 

    

 

 

    

 

 

    

 

 

  

Balance as of March 31, 2012

     3,673,615     $ 22,283       7,717,970     $ 38,613       11,391,585     $ 60,896