Registration statement for securities of certain foreign private issuers

Financial Instruments - Additional Information (Detail)

v3.20.1
Financial Instruments - Additional Information (Detail)
12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2019
CAD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2018
CAD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2017
USD ($)
Disclosure of nature and extent of risks arising from financial instruments [line items]              
Cash and cash equivalents $ 814,492   $ 11,471,243   $ 1,760,219 $ 23,610,440 $ 26,130,493
Accounts payable and accrued liabilities 11,441,668   6,447,888        
Warrant liability $ 3,621,444   11,250,167   $ 2,373,057   $ 17,849,460
Changes in sensitivity interest rate 1.00% 1.00%          
Annual net loss changes due to interest rate effect $ 62,071   113,711        
5% strengthening of US Dollar against Canadian Dollar [member]              
Disclosure of nature and extent of risks arising from financial instruments [line items]              
Profit of (Loss) $ 32,541   $ 192,059        
5% strengthening of US Dollar against Canadian Dollar [member] | Warrant Liability [Member]              
Disclosure of nature and extent of risks arising from financial instruments [line items]              
Strengthening of currency against accounts payable and accrued liabilities   $ 868,855   $ 5,520,457      
5% strengthening of US Dollar against Canadian Dollar [member] | C D N Current Assets And Accounts Payable And Accrued Liabilities [Member]              
Disclosure of nature and extent of risks arising from financial instruments [line items]              
Strengthening of currency against current assets   $ 556,276   $ 277,228