| Line Item | Mar 31, 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 | Dec 31, 2022 | Sep 30, 2022 | Jun 30, 2022 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CONDENSED CONSOLIDATED INTERIM STATEMENTS OF OPERATIONS | ||||||||||||||||
| Sales, net | ||||||||||||||||
| YoY growth | +255.7% | +295.5% | +87.4% | -46.0% | ||||||||||||
| Cost of sales: | ||||||||||||||||
| Production costs | ||||||||||||||||
| Depreciation and amortization | ||||||||||||||||
| Reclamation and remediation | ||||||||||||||||
| Total cost of sales | ||||||||||||||||
| Mine gross profit (loss) | ||||||||||||||||
| % of revenue | 43.3% | 51.5% | 25.0% | -39.4% | ||||||||||||
| Costs and expenses: | ||||||||||||||||
| General and administrative expenses | ||||||||||||||||
| Exploration expenses | ||||||||||||||||
| Stock-based compensation | ||||||||||||||||
| Other expense, net | ||||||||||||||||
| Total costs and expenses | ||||||||||||||||
| % of revenue | 21.8% | 12.6% | 39.9% | 63.0% | ||||||||||||
| Income (loss) before income taxes | ||||||||||||||||
| % of revenue | 21.5% | 38.9% | -14.9% | -102.4% | ||||||||||||
| Income tax provision | ||||||||||||||||
| Net income (loss) | ||||||||||||||||
| % of revenue | 10.8% | 35.1% | -18.7% | -102.3% | ||||||||||||
| Basic income (loss) per common share (in dollars per share) | ||||||||||||||||
| Diluted income (loss) per common share (in dollars per share) |