Stock-based Payments - Summary of Fair Value of Options (Detail)
|
12 Months Ended |
|
Dec. 31, 2017
CAD ($)
yr
|
Dec. 31, 2016
CAD ($)
yr
|
| Disclosure of assumptions used to estimate fair value of stock options [line items] |
|
|
| Share price at grant date |
$ 3.66
|
$ 0.52
|
| Exercise price |
|
$ 0.280
|
| Risk free interest rate |
|
0.54%
|
| Expected life of options (years) | yr |
5.00
|
|
| Expected annualized volatility |
55.00%
|
|
| Expected dividend yield |
0.00%
|
0.00%
|
| Weighted average Black Scholes value at grant date |
$ 1.39
|
$ 0.43
|
| Bottom of range [member] |
|
|
| Disclosure of assumptions used to estimate fair value of stock options [line items] |
|
|
| Share price at grant date |
2.42
|
0.19
|
| Exercise price |
$ 2.420
|
$ 0.285
|
| Risk free interest rate |
0.96%
|
0.54%
|
| Expected life of options (years) | yr |
|
0.25
|
| Expected annualized volatility |
|
55.00%
|
| Top of range [member] |
|
|
| Disclosure of assumptions used to estimate fair value of stock options [line items] |
|
|
| Share price at grant date |
$ 3.27
|
$ 1.77
|
| Exercise price |
$ 3.320
|
$ 1.840
|
| Risk free interest rate |
1.59%
|
0.67%
|
| Expected life of options (years) | yr |
|
5.00
|
| Expected annualized volatility |
|
150.00%
|