Exploration and evaluation assets and mining data - Narrative (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Dec. 31, 2025 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Disclosure of detailed information about property, plant and equipment [line items] | |||||
| General and administrative expenses | $ 5,498,907 | $ 4,497,829 | $ 16,345,971 | $ 12,507,259 | |
| Interest accrued | 2,351,062 | $ 889,351 | 304,091 | 5,269,195 | 304,091 |
| Interest income on cash and bank balances at central banks | 56,798 | 212,705 | 0 | ||
| Kabanga Nickel Company Ltd | |||||
| Disclosure of detailed information about property, plant and equipment [line items] | |||||
| General and administrative expenses | $ 7,389,374 | $ 3,565,313 | $ 21,142,477 | $ 12,321,662 | |