Sales Tax, Tax Credits and Other Receivables (Tables)
3 Months Ended
May 31, 2020
Receivables [Abstract]  
Sales tax, tax credits and other receivables
   

May 31,

2020

   

February 29,

2020

 
Sales tax   $ 122,419     $ 180 971  
Research and development tax credits     216,458       447,843  
Other receivables     231,337       35,730  
    $ 570,214     $ 664,544