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SEGMENTED INFORMATION (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Silver $ 6,318 $ 14,030 $ 17,259
Copper 4,662 13,953 12,996
Gold 8,517 10,326 9,866
Penalties, treatment costs and refining charges (3,475) (6,563) (6,005)
Revenue from mining operations $ 16,022 $ 31,746 $ 34,116