Sales Tax, Tax Credits and Other Receivables (Tables)
12 Months Ended
Feb. 28, 2021
Receivables [Abstract]  
Sales tax, tax credits and other receivables
    February 28, 2021     February 29, 2020  
Sales tax   $ 1,155,504     $ 180,971  
Research and development tax credits     435,467       447,843  
Other receivables     172,864       35,730  
    $ 1,763,835     $ 664,544