Share Capital - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Share Based Option Plan (Detail) |
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2019
USD ($)
yr
$ / shares
|
Sep. 30, 2018
CAD ($)
yr
$ / shares
|
|
| Disclosure of fair value measurement of equity [line items] | ||
| Fair Value at grant | $ 1.48 | $ 5.99 |
| Share price at grant | (per share) | $ 2.39 | $ 10.79 |
| Exercise price | (per share) | $ 2.79 | $ 11.97 |
| Expected Option Life | 3.48 | 3 |
| Risk free interest rate (based on government bonds) | 1.50% | 1.90% |
| Expected Volatility | 98.02% | 90.12% |
| Expected dividends | ||
| X | ||||||||||
- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The option life of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. No definition available.
|
| X | ||||||||||
- Definition The exercise price of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of an expected dividend used to calculate the fair value of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average fair value of options at grant date. No definition available.
|