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Significant Accounting Policies - Schedule of Useful Lives of Finite-Lived Intangible Assets (Details)
 12 Months Ended
Mar. 31, 2018
Domain Name  
Disclosure Of Intangible Assets [Line Items]  
Useful life 5 years
Health Canada Licenses  
Disclosure Of Intangible Assets [Line Items]  
Useful life Useful life of facility or lease term
Distribution Channel  
Disclosure Of Intangible Assets [Line Items]  
Useful life 5 years
Import License  
Disclosure Of Intangible Assets [Line Items]  
Useful life 4 years
Software  
Disclosure Of Intangible Assets [Line Items]  
Useful life 3 years