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CAPITAL STOCK - Narrative (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2017
USD ($)
shares
Share Purchase Warrants Denominated in United States Dollars  
Class of Warrant or Right [Line Items]  
Fair value of warrants $ 6,122
March 14, 2019 | Share Purchase Warrants Denominated in United States Dollars  
Class of Warrant or Right [Line Items]  
Fair value of warrants $ 1,460
Number of warrants outstanding (in shares) | shares 2,515,625
At The Market Sale Of Stock  
Class of Warrant or Right [Line Items]  
Sale of stock, number of shares issued (in shares) | shares 3,158,825
Sale of stock, consideration received $ 6,970