IMPAIRMENT OF NON-CURRENT ASSETS (Narrative) (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2020
USD ($)
| |
| Guanacevi Mine [Member] | |
| Disclosure of fair value measurement of assets [line items] | |
| Reversal of impairment loss | $ 2,576 |
| Discount rate used in current estimate of value in use | 6.10% |
| El Compas CGU [Member] | |
| Disclosure of fair value measurement of assets [line items] | |
| Carrying value of project excluding working capital and reclamation provision | $ 5,972 |
| Estimated recoverable amount on discounted cash flow basis | $ 2,972 |
| Discount rate used in current estimate of value in use | 6.10% |
| Impairment loss | $ 3,000 |