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SHARE CAPITAL, WARRANTS AND OPTIONS - Common shares purchase warrants exercisable(Details) | 12 Months Ended |  |  |
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Dec. 31, 2017 EquityInstruments $ / shares | Dec. 31, 2016 EquityInstruments | Dec. 31, 2015 EquityInstruments | Dec. 31, 2014 EquityInstruments
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 176,175,413 | 95,982,036 | 27,738,344 | 25,137,030
Weighted average remaining contractual life (years) | 1 year 29 days |  |  |
Volume-weighted average trading price of common shares on TSX-V triggering acceleration clause | $ / shares | $ 0.18 |  |  |
Period of consecutive trading days for which volume-weighted average trading price of common shares on TSX-V needs to exceed triggering level | 10 days |  |  |
Period of acceleration of warrant expiry date when triggering condition is met | 30 days |  |  |
Jul 21, 2018 One |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 46,334,451 |  |  |
Exercise price | $ / shares | $ 0.12 |  |  |
Weighted average remaining contractual life (years) | 1 month 24 days |  |  |
Jul 21, 2018 Two |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 1,203,695 |  |  |
Exercise price | $ / shares | $ 0.075 |  |  |
Weighted average remaining contractual life (years) | 0 years |  |  |
Sep 12, 2018 |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 33,665,546 |  |  |
Exercise price | $ / shares | $ 0.12 |  |  |
Weighted average remaining contractual life (years) | 1 month 17 days |  |  |
Jun 8, 2019 One |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 72,515,414 |  |  |
Exercise price | $ / shares | $ 0.12 |  |  |
Weighted average remaining contractual life (years) | 7 months 2 days |  |  |
Jun 8, 2019 Two |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 1,965,083 |  |  |
Exercise price | $ / shares | $ 0.075 |  |  |
Weighted average remaining contractual life (years) | 7 days |  |  |
August 15, 2019 |  |  |  |
Disclosure of warrants outstanding |  |  |  |
Warrants outstanding | EquityInstruments | 20,491,224 |  |  |
Exercise price | $ / shares | $ 0.12 |  |  |
Weighted average remaining contractual life (years) | 2 months 9 days |  |  |

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