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MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | $ 545,151 | $ 460,183
Capitalized expenditures | 44,426 | 35,145
Acquisition (Note 3) | 13,135 | 16,660
Environmental rehabilitation | 812 | (1,610)
Derecognition | (185) |
Foreign currency translation impact | 16,709 | 34,773
Balance at end of year | 620,048 | 545,151
Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | (267,722) | (235,597)
Depletion | (18,569) | (16,340)
Derecognition | 185 |
Foreign currency translation impact | (7,494) | (15,785)
Balance at end of year | (293,600) | (267,722)
Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 277,429 |
Balance at end of year | 326,448 | 277,429
Producing and development properties YMD [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 348,000 | 293,136
Capitalized expenditures | 37,307 | 31,138
Acquisition (Note 3) |  |
Environmental rehabilitation | (68) | (1,268)
Derecognition |  |
Foreign currency translation impact | 12,096 | 24,994
Balance at end of year | 397,335 | 348,000
Producing and development properties YMD [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | (122,977) | (100,390)
Depletion | (15,974) | (13,921)
Derecognition |  |
Foreign currency translation impact | (4,313) | (8,666)
Balance at end of year | (143,264) | (122,977)
Producing and development properties YMD [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 225,023 |
Balance at end of year | 254,071 | 225,023
Producing and development properties BYP [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 64,609 | 63,572
Capitalized expenditures |  | 30
Acquisition (Note 3) |  |
Environmental rehabilitation | (18) | (135)
Derecognition |  |
Foreign currency translation impact | 501 | 1,142
Balance at end of year | 65,092 | 64,609
Producing and development properties BYP [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | (57,264) | (56,688)
Depletion |  |
Derecognition |  |
Foreign currency translation impact | (257) | (576)
Balance at end of year | (57,521) | (57,264)
Producing and development properties BYP [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 7,345 |
Balance at end of year | 7,571 | 7,345
Producing and development properties GC [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 115,610 | 103,311
Capitalized expenditures | 4,507 | 3,890
Acquisition (Note 3) |  |
Environmental rehabilitation | 898 | (207)
Derecognition |  |
Foreign currency translation impact | 3,891 | 8,616
Balance at end of year | 124,906 | 115,610
Producing and development properties GC [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | (87,296) | (78,355)
Depletion | (2,595) | (2,419)
Derecognition |  |
Foreign currency translation impact | (2,924) | (6,522)
Balance at end of year | (92,815) | (87,296)
Producing and development properties GC [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 28,314 |
Balance at end of year | 32,091 | 28,314
Exploration and evaluation properties RZY [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 185 | 164
Capitalized expenditures |  |
Acquisition (Note 3) |  |
Environmental rehabilitation |  |
Derecognition | (185) |
Foreign currency translation impact |  | 21
Balance at end of year |  | 185
Exploration and evaluation properties RZY [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | (185) | (164)
Depletion |  |
Derecognition | 185 |
Foreign currency translation impact |  | (21)
Balance at end of year |  | (185)
Exploration and evaluation properties RZY [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year |  |
Balance at end of year |  |
Exploration and evaluation properties Kuanping [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year |  |
Capitalized expenditures | 24 |
Acquisition (Note 3) | 13,135 |
Environmental rehabilitation |  |
Derecognition |  |
Foreign currency translation impact | 221 |
Balance at end of year | 13,380 |
Exploration and evaluation properties Kuanping [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year |  |
Depletion |  |
Derecognition |  |
Foreign currency translation impact |  |
Balance at end of year |  |
Exploration and evaluation properties Kuanping [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year |  |
Balance at end of year | 13,380 |
Exploration and evaluation properties La Yesca [Member] | Cost [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 16,747 |
Capitalized expenditures | 2,588 | 87
Acquisition (Note 3) |  | 16,660
Environmental rehabilitation |  |
Derecognition |  |
Foreign currency translation impact |  |
Balance at end of year | 19,335 | 16,747
Exploration and evaluation properties La Yesca [Member] | Impairment and accumulated depletion [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year |  |
Depletion |  |
Derecognition |  |
Foreign currency translation impact |  |
Balance at end of year |  |
Exploration and evaluation properties La Yesca [Member] | Carrying amounts [Member] |  |
MINERAL RIGHTS AND PROPERTIES (Details) - Schedule of Mineral Rights and Properties [Line Items] |  |
Balance at beginning year | 16,747 |
Balance at end of year | $ 19,335 | $ 16,747

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