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

August 31,

2020

   

February 29,

2020

 
Sales tax   $ 232,506     $ 180 971  
Research and development tax credits     177,237       447,843  
Other receivables     101,413       35,730  
    $ 511,156     $ 664,544