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Income Taxes (Details) - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Options exercisable, remaining contractual life    
Loss before income taxes $ (10,763) $ (9,602)
Canadian federal and provincial income tax rates 27.00% 27.00%
Expected income tax recovery $ (2,906) $ (2,593)
Increase (decrease) in income tax recovery resulting from:    
Spin-out transaction 8,650 0
Acquisition of Eastmain (7,838) 0
Share-based compensation 683 918
Share issuance costs (462) (63)
Adjustment to tax estimates (22) 151
Amortization of flow-through share premium (120) (234)
Flow-through expenditures renunciation 489 822
Difference in future and foreign tax rates 234 0
Other 55 (1,202)
Increase in unrecognized tax asset 1,237 2,147
Income tax recovery $ 0 $ (54)