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SHARE CAPITAL AND RESERVES (Summary of Share Purchase Other Equity Instruments) (Details) - Warrants [member] | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 USD ($) shares | Dec. 31, 2016 shares | Dec. 31, 2015 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number outstanding | 24,009,972 | 28,046,400 | 29,307,173
Number Of Warrants Outstanding One [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number outstanding | 1,043,572 |  |
Exercise Price per Share | $ 0.97 |  |
Expiry Date | May 06, 2018 |  |
Number Of Warrants Outstanding Two [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number outstanding | 3,000,000 |  |
Exercise Price per Share | $ 4.50 |  |
Expiry Date | Mar. 23, 2020 |  |
Number Of Warrants Outstanding Three [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number outstanding | 15,000,000 |  |
Exercise Price per Share | $ 3.50 |  |
Expiry Date | Oct. 27, 2020 |  |
Number Of Warrants Outstanding Four [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number outstanding | 4,966,400 |  |
Exercise Price per Share | $ 4.00 |  |
Expiry Date | Nov. 03, 2020 |  |

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