Registration statement for securities of certain foreign private issuers

Accounts payable and accrued liabilities - Additional Information (Detail)

v3.20.1
Accounts payable and accrued liabilities - Additional Information (Detail) - USD ($)
Mar. 31, 2020
Mar. 09, 2020
Dec. 31, 2019
Oct. 24, 2019
Dec. 31, 2018
Accrued Expenses And Other Liabilities [Line Items]          
Accounts payable and accrued liabilities $ 10,184,977   $ 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   2,889,626    
Research And Development Suppliers [Member]          
Accrued Expenses And Other Liabilities [Line Items]          
Accounts payable and accrued liabilities 9,144,666   10,049,622    
Legal And Insurance Service Provider [Member]          
Accrued Expenses And Other Liabilities [Line Items]          
Accounts payable and accrued liabilities $ 537,535   $ 560,904