Income Taxes (Tables)
 12 Months Ended
Feb. 28, 2019
Income Tax Disclosure [Abstract]  
Components of loss before taxes
   Years ended February 28,
   2019  2018  2017
U.S. operations  $(8,948,305)  $(8,509,651)  $(2,155,934)
Foreign operations   (8,588,106)   (5,527,727)   (1,958,067)
Loss before taxes  $(17,536,411)  $(14,037,378)  $(4,114,001)
Income tax rate reconciliation
   Years ended February 28,
   2019  2018  2017
Statutory Federal rate (21.0% in 2019; 32.7% in 2018; 35.0% in 2017)               
Federal income tax at statutory rate  $(3,682,646)  $(4,585,497)  $(1,439,900)
Effect of foreign jurisdiction   (308,046)   320,769    40,018 
Non-deductible expenses   888,749    2,169,384    (48,326)
Tax credits related to research and development expenditures   (387,326)   (146,757)   —   
Impact of Tax Cuts and Jobs Act Enactment   —      876,812    —   
Unrecognized tax benefit of net operating losses and other available deductions   3,489,269    1,365,289    1,448,208 
Effective income tax expense  $—     $—     $—   
Current  $—     $—     $—   
Deferred  $—     $—     $—   
Loss carryforwards
   U.S.  Canada
   Federal  Federal  Québec
 2035   $56,699   $—     $—   
 2036    521,398    —      —   
 2037    4,419,150    278,623    278,623 
 2038    1,560,483    3,096,139    3,096,139 
 2039    —      4,268,317    4,281,955 
 Indefinite    8,038,528    —      —   
     $14,596,258   $7,643,079   $7,656,717 
Deferred income tax assets and liabilities
   As at February 28,
   2019  2018
Deferred tax assets          
Canada net operating loss carry forward  $2,026,984   $1,127,381 
U.S. net operating loss carry forward   3,165,937    1,377,008 
Accrual and reserves   118,309    —   
Property, plant and equipment   —      136,200 
Research and development expenditures and credits   1,058,010    472,608 
Unrealized foreign exchange   —      9,462 
Other   38,418    —   
Deferred tax assets   6,407,658    3,122,659 
Deferred tax liabilities          
Property, plant and equipment   (41,636)   (2,367)
Intangibles   (34,785)   (1,489)
Accrual and reserves   —      (49,236)
Investment tax credits   —      —   
Unrealized foreign exchange   —      (8,697)
Deferred tax liabilities   (76,421)   (61,789)
           
Deferred tax assets, net   6,331,239    3,060,870 
Valuation allowance   (6,331,239)   (3,060,870)
Deferred tax assets, net  $—     $—