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Sales Tax, Tax Credits and Other Receivables (Details) - USD ($)
Nov. 30, 2019
Feb. 28, 2019
Receivables [Abstract]    
Sales tax $ 196,065 $ 82,992
Research and development tax credits 396,123 410,997
Other receivables 39,248 105,011
Sales tax, research and development tax credits and other receivables $ 631,436 $ 599,000