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CAPITAL STOCK - Schedule of Stockholders' Equity Note, Warrants or Rights (Details) - Share Purchase Warrants Denominated in United States Dollars - September 20, 2021
$ / shares in Units, $ in Thousands
6 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Class of Warrant or Right [Line Items]  
Exercise price of warrants (in dollars per share) | $ / shares $ 2.45
Number of warrants outstanding (in shares) | shares 4,166,030
Fair value of warrants | $ $ 2,751