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Provision for Site Reclamation and Closure (Details Narrative) - Provision for Decommissioning, Restoration and Rehabilitation Costs - CAD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of other provisions [line items]    
Other provisions, undiscounted cash flows $ 5,060 $ 2,658
Major assumptions made concerning future events, other provisions, inflation rate 2.00% 2.00%
Major assumptions made concerning future events, other provisions, discount rate 1.21% 1.76%