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SHARE CAPITAL AND RESERVES (Summary of Share Purchase Options) (Details) | 12 Months Ended
--- | ---
Dec. 31, 2017 CAD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares outstanding, options | shares | 7,726,317
Number of shares, vested, options | shares | 5,612,661
Weighted average exercise price per Share, options | $ 3.38
Range Exercise Price 2.92 - 11.31 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Year of expiry | 2018
Number of shares outstanding, options | shares | 175,072
Number of shares, vested, options | shares | 175,072
Weighted average exercise price per Share, options | $ 5.26
Range Exercise Price 1.46 - 6.03 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Year of expiry | 2019
Number of shares outstanding, options | shares | 3,478,439
Number of shares, vested, options | shares | 3,478,439
Weighted average exercise price per Share, options | $ 2.79
Range Exercise Price 3.60 - 3.64 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Year of expiry | 2020
Number of shares outstanding, options | shares | 1,284,000
Number of shares, vested, options | shares | 856,005
Weighted average exercise price per Share, options | $ 3.61
Range Exercise Price 2.65 - 4.96 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Year of expiry | 2021
Number of shares outstanding, options | shares | 1,405,740
Number of shares, vested, options | shares | 515,079
Weighted average exercise price per Share, options | $ 4.65
Range Exercise Price 4.86 - 15.00 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Year of expiry | 2022
Number of shares outstanding, options | shares | 1,383,066
Number of shares, vested, options | shares | 588,066
Weighted average exercise price per Share, options | $ 4.90
Bottom of range [member] | Range Exercise Price 2.92 - 11.31 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 2.92
Bottom of range [member] | Range Exercise Price 1.46 - 6.03 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 1.46
Bottom of range [member] | Range Exercise Price 3.60 - 3.64 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 3.60
Bottom of range [member] | Range Exercise Price 2.65 - 4.96 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 2.65
Bottom of range [member] | Range Exercise Price 4.86 - 15.00 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 4.86
Top of range [member] | Range Exercise Price 2.92 - 11.31 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 11.31
Top of range [member] | Range Exercise Price 1.46 - 6.03 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 6.03
Top of range [member] | Range Exercise Price 3.60 - 3.64 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 3.64
Top of range [member] | Range Exercise Price 2.65 - 4.96 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | 4.96
Top of range [member] | Range Exercise Price 4.86 - 15.00 [member] |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Exercise price of outstanding share options | $ 15.00

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