Share Capital - Summary of Inputs Used in Measurement of Fair Values at Grant Date of Share Based Option Plan (Detail) |
12 Months Ended | |
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Dec. 31, 2018
CAD ($)
yr
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Dec. 31, 2017
CAD ($)
yr
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| Disclosure of fair value measurement of equity [line items] | ||
| Fair Value at grant date (CDN) | $ 5.99 | $ 8.70 |
| Share price at grant date (CDN) | 10.79 | 14.75 |
| Exercise price (CDN) | $ 11.97 | $ 15.52 |
| Expected Volatility | 90.12% | 83.20% |
| Option Life | yr | 3 | |
| Expected dividends | ||
| Risk-free interest rate (based on government bonds) | 1.90% | 1.06% |
| Bottom of range [member] | ||
| Disclosure of fair value measurement of equity [line items] | ||
| Option Life | yr | 3 | |
| Top of range [member] | ||
| Disclosure of fair value measurement of equity [line items] | ||
| Option Life | yr | 4 | |
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- 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
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- Definition The option life of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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
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- 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.
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- Definition The exercise price of share options granted. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- 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
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- 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
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- Definition Weighted average fair value of options at grant date. No definition available.
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- Details
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- Details
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