| Disclosure of detailed information about property, plant and equipment [Table Text Block] |
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Corporate |
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Mining |
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Non-producing |
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Plant and |
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Right-of-use |
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office |
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interests |
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properties |
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equipment |
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lease assets |
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equipment |
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Total |
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| Cost |
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| Balance at January 1, 2024 |
$ |
226,819 |
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$ |
12,469 |
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$ |
128,228 |
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$ |
11,685 |
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$ |
237 |
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$ |
379,438 |
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| Asset additions |
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14,226 |
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- |
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4,794 |
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789 |
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- |
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19,809 |
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| Change in decommissioning provision |
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(1,420 |
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- |
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- |
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- |
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- |
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(1,420 |
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| Balance at December 31, 2024 |
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239,625 |
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12,469 |
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133,022 |
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12,474 |
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237 |
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397,827 |
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| Asset additions |
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111,652 |
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- |
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19,202 |
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2,933 |
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308 |
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134,095 |
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| Asset disposals |
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- |
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(31 |
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- |
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(31 |
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| Change in decommissioning provision |
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(1,014 |
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- |
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- |
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- |
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- |
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(1,014 |
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| Balance at December 31, 2025 |
$ |
350,263 |
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$ |
12,469 |
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$ |
152,224 |
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$ |
15,376 |
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$ |
545 |
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$ |
530,877 |
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| Accumulated depreciation and depletion |
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| Balance at January 1, 2024 |
$ |
(132,474 |
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$ |
- |
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$ |
(85,440 |
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$ |
(8,223 |
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$ |
(200 |
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$ |
(226,337 |
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| Depreciation/depletion for the year |
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(14,172 |
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- |
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(8,615 |
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(1,278 |
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(26 |
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(24,091 |
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| Balance at December 31, 2024 |
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(146,646 |
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- |
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(94,055 |
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(9,501 |
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(226 |
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(250,428 |
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| Depreciation/depletion for the year |
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(11,233 |
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- |
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(7,741 |
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(2,249 |
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(11 |
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(21,234 |
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| Impairment for the year |
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- |
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- |
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(10,400 |
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- |
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- |
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(10,400 |
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| Balance at December 31, 2025 |
$ |
(157,879 |
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$ |
- |
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$ |
(112,196 |
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$ |
(11,750 |
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$ |
(237 |
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$ |
(282,062 |
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| Carrying value |
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| at December 31, 2024 |
$ |
92,979 |
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$ |
12,469 |
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$ |
38,967 |
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$ |
2,973 |
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$ |
11 |
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$ |
147,399 |
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| at December 31, 2025 |
$ |
192,384 |
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$ |
12,469 |
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$ |
40,028 |
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$ |
3,626 |
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$ |
308 |
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$ |
248,815 |
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