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Share Capital - Summary of Outstanding Warrants (Details) | 12 Months Ended
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Dec. 31, 2017 CAD ($) year shares | Dec. 31, 2016 shares | Dec. 31, 2015 shares
Disclosure of classes of share capital [line items] |  |  |
Share capital issued, beginning (shares) | 121,258,222 |  |
Share capital issued ending (shares) | 141,805,722 | 121,258,222 |
Weighted average remaining contractual life of outstanding share options | year | 7.09 |  |
Warrants |  |  |
Disclosure of classes of share capital [line items] |  |  |
Exercise Price | $ | $ 0.95 |  |
Share capital issued, beginning (shares) | 0 | 0 | 0
Issued (shares) | 16,445,000 |  |
Share capital issued ending (shares) | 16,445,000 | 0 | 0
Weighted average remaining contractual life of outstanding share options | 4.42 |  |

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