| Line Item | Jun 30, 2026 | Dec 31, 2025 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Dec 31, 2024 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Dec 31, 2023 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Sep 30, 2022 | Jun 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Operating expenses | |||||||||||||||
| Exploration expenses | |||||||||||||||
| Selling, General and Administrative Expense | |||||||||||||||
| Loss from operations | |||||||||||||||
| Other income (expenses) | |||||||||||||||
| Foreign exchange gain (loss) | |||||||||||||||
| Interest income | |||||||||||||||
| Interest expense | — | ||||||||||||||
| Total other income | |||||||||||||||
| Loss before income taxes | |||||||||||||||
| Income tax expense | |||||||||||||||
| Net loss | — | — | |||||||||||||
| Basic loss per share (in dollars per share) | — | ||||||||||||||
| Diluted loss per share (in dollars per share) | — |