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INCOME TAXES (Details 1) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Income Taxes Details 1Abstract    
Loss before taxes $ (23,517) $ (38,371)
Combined Canadian tax rate 26.50% 26.50%
Income tax recovery at combined rate $ 6,232 $ 10,168
Difference in tax rates 2,048 7,573
Non-deductible amounts (2,675) (5,996)
Non-taxable amounts 2,362 1,439
Previously unrecognized deferred tax assets 1,326 3,852
Renunciation of tax attributes-flow through shares (403) (1,589)
Change in deferred tax assets not recognized (2,476) (7,488)
Change in tax rates, legislation (81) 0
Prior year over (under) provision (890) (78)
Other (67) 413
Income tax recovery $ 5,376 $ 8,294