Current report of foreign issuer pursuant to Rules 13a-16 and 15d-16 Amendments

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

v3.19.3
Share Capital - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Share Based Option Plan (Detail)
6 Months Ended
Jun. 30, 2019
USD ($)
yr
Jun. 30, 2018
USD ($)
yr
Jun. 30, 2018
CAD ($)
yr
Disclosure of fair value measurement of equity [line items]      
Fair Value at grant $ 1.76   $ 5.99
Share price at grant 2.84   10.79
Exercise price $ 3.40   $ 11.97
Expected Volatility 98.43% 90.12% 90.12%
Expected Option Life | yr 3.5 3 3
Expected dividends | $  
Risk free interest rate (based on government bonds) 1.61% 1.90% 1.90%