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CAPITAL STOCK - Narrative (Details) $ / shares in Units, $ in Thousands | 6 Months Ended
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Jun. 30, 2017 USD ($) $ / shares shares
Share Purchase Warrants Denominated in United States Dollars |
Class of Warrant or Right [Line Items] |
Fair value of warrants | $ | $ 3,153
June Two Two Two Zero One Seven Expiry Date [Member] | Share Purchase Warrants Denominated in Canadian Dollars |
Class of Warrant or Right [Line Items] |
Number of warrants outstanding (in shares) | 350,000
Exercise price of warrants (in dollars per share) | $ / shares | $ 13.25
June One Five Two Zero One Seven Expiry Date [Member] | Share Purchase Warrants Denominated in Canadian Dollars |
Class of Warrant or Right [Line Items] |
Number of warrants outstanding (in shares) | 460,000
Exercise price of warrants (in dollars per share) | $ / shares | $ 9.50
March 14, 2019 | Share Purchase Warrants Denominated in United States Dollars |
Class of Warrant or Right [Line Items] |
Number of warrants outstanding (in shares) | 2,515,625
Exercise price of warrants (in dollars per share) | $ / shares | $ 3.20
Fair value of warrants | $ | $ 620
At The Market Sale Of Stock |
Class of Warrant or Right [Line Items] |
Sale of stock, number of shares issued (in shares) | 3,402,292
Sale of stock, consideration received | $ | $ 7,460

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