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

Share Capital - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Share Based Option Plan (Detail)

v3.20.1
Share Capital - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Share Based Option Plan (Detail)
 12 Months Ended
Dec. 31, 2019
USD ($)
yr
$ / shares
Dec. 31, 2019
CAD ($)
yr
$ / shares
Dec. 31, 2018
CAD ($)
yr
$ / shares
Disclosure of fair value measurement of equity [line items]      
Expected Option Life | yr 3.5 3.5  
Canadian Dollar [Member]      
Disclosure of fair value measurement of equity [line items]      
Fair Value calculated | $   $ 1.61 $ 5.99
Share price at grant | $ / shares   $ 2.90 $ 10.79
Exercise price | $ / shares   $ 4.54 $ 11.97
Expected Option Life | yr 3.4 3.4 3
Risk free interest rate (based on government bonds) 1.43% 1.43% 1.90%
Expected Volatility 98.10% 98.10% 90.12%
Expected dividends | $  
US Dollar [Member]      
Disclosure of fair value measurement of equity [line items]      
Fair Value calculated | $ $ 1.48    
Share price at grant | $ / shares $ 2.36    
Exercise price | $ / shares $ 2.72    
Risk free interest rate (based on government bonds) 1.50% 1.50%  
Expected Volatility 97.90% 97.90%  
Expected dividends | $