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RECLAMATION PROVISION (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Balance at beginning of the year $ 808 $ 1,524
Changes in estimates 0 (737)
Unwinding of discount related to continuing operations 36 99
Effect of movements in exchange rates (14) (78)
Balance at end of the year $ 830 $ 808