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Share Based Payments - Schedule of Stock Options Outstanding and Exercisable by Range of Exercise Price (Details) | Dec. 31, 2017 year | Dec. 31, 2017 shares | Dec. 31, 2017 CAD ($) | Dec. 31, 2017 | Dec. 31, 2016 CAD ($) shares | Dec. 31, 2015 CAD ($) shares | Dec. 31, 2014 CAD ($) shares
--- | --- | --- | --- | --- | --- | --- | ---
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 6,148,667 |  |  | 8,674,227 | 8,561,394 | 5,446,394
Weighted Average Remaining Contractual Life (years) | year | 7.09 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | $ 1.39 |  | $ 1.83 | $ 2.17 | $ 3.19
Number Exercisable (options) |  | 5,453,501 |  | 5,453,501 | 6,729,643 | 6,476,394 |
Weighted Average Exercise Price (cad per share) |  |  | 1.51 |  | $ 2.27 | $ 2.73 |
$0.26 - $0.42 |  |  |  |  |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 3,437,000 |  |  |  |  |
Weighted Average Remaining Contractual Life (years) | year | 8.46 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 0.35 |  |  |  |
Number Exercisable (options) |  |  |  | 2,921,834 |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 0.35 |  |  |  |
$0.26 - $0.42 | Minimum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 0.26 |  |  |  |
$0.26 - $0.42 | Maximum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 0.42 |  |  |  |
$0.51 - $0.80 |  |  |  |  |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 538,000 |  |  |  |  |
Weighted Average Remaining Contractual Life (years) | year | 8.22 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 0.64 |  |  |  |
Number Exercisable (options) |  |  |  | 358,000 |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 0.70 |  |  |  |
$0.51 - $0.80 | Minimum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 0.51 |  |  |  |
$0.51 - $0.80 | Maximum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 0.8 |  |  |  |
$1.45 - $2.00 |  |  |  |  |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 1,002,667 |  |  |  |  |
Weighted Average Remaining Contractual Life (years) | year | 5.62 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 1.77 |  |  |  |
Number Exercisable (options) |  |  |  | 1,002,667 |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 1.77 |  |  |  |
$1.45 - $2.00 | Minimum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 1.45 |  |  |  |
$1.45 - $2.00 | Maximum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 2.00 |  |  |  |
$2.13 - $3.89 |  |  |  |  |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 545,500 |  |  |  |  |
Weighted Average Remaining Contractual Life (years) | year | 3.74 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 3.42 |  |  |  |
Number Exercisable (options) |  |  |  | 545,500 |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 3.42 |  |  |  |
$2.13 - $3.89 | Minimum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 2.13 |  |  |  |
$2.13 - $3.89 | Maximum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 3.89 |  |  |  |
$4.01 - $6.72 |  |  |  |  |  |  |
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items] |  |  |  |  |  |  |
Number Outstanding (options) | shares |  | 625,500 |  |  |  |  |
Weighted Average Remaining Contractual Life (years) | year | 3.94 |  |  |  |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 5.34 |  |  |  |
Number Exercisable (options) |  |  |  | 625,500 |  |  |
Weighted Average Exercise Price (cad per share) |  |  | 5.34 |  |  |  |
$4.01 - $6.72 | Minimum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | 4.01 |  |  |  |
$4.01 - $6.72 | Maximum |  |  |  |  |  |  |
Disclosure of range of exercise prices of outstanding share options [line items] |  |  |  |  |  |  |
Exercise Price |  |  | $ 6.72 |  |  |  |

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