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INCOME TAXES - Disclosure of income tax expense (Details) - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Major components of tax expense (income) [abstract]    
Current tax expense $ 0 $ 0
Deferred tax recovery (415) (3,683)
Income Tax Expense $ (415) $ (3,683)