Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Accounts payable and accrued liabilities - Additional Information (Detail)

v3.20.1
Accounts payable and accrued liabilities - Additional Information (Detail) - USD ($)
Mar. 09, 2020
Dec. 31, 2019
Oct. 04, 2019
Dec. 31, 2018
Accrued Expenses And Other Liabilities [Line Items]        
Accounts payable and accrued liabilities   $ 11,412,896   $ 6,447,888
Loss contingency claim value $ 4,000,000   $ 5,000,000  
Service Provider [Member]        
Accrued Expenses And Other Liabilities [Line Items]        
Accounts payable and accrued liabilities   2,889,626    
Research And Development Suppliers [member]        
Accrued Expenses And Other Liabilities [Line Items]        
Accounts payable and accrued liabilities   10,049,622    
Legal And Insurance Service Provider [member]        
Accrued Expenses And Other Liabilities [Line Items]        
Accounts payable and accrued liabilities   $ 560,904