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Contract Liability and Receivable - Narrative (Details)
 1 Months Ended 12 Months Ended
Nov. 30, 2017
USD ($)
year
patient
Dec. 31, 2018
CAD ($)
Dec. 31, 2017
CAD ($)
Dec. 31, 2017
USD ($)
Class of Warrant or Right1 [Line Items]        
Warrant purchase agreement $ 8,000,000      
Expected recognition period | year 5      
Contract receivable   $ 0 $ 4,767,100 $ 3,800,000
Income tax expense from contract receivable   $ 547,707    
Milestone 1        
Class of Warrant or Right1 [Line Items]        
Warrant purchase agreement $ 2,000,000      
Common share premium 20.00%      
Weighted average closing price term 5      
Patients | patient 1      
Right to call warrant from time of agreement, term 6      
Milestone 2        
Class of Warrant or Right1 [Line Items]        
Warrant purchase agreement $ 6,000,000      
Common share premium 20.00%      
Weighted average closing price term 5      
Patients | patient 50