| Line Item | Aug 31, 2026 | May 31, 2026 | Feb 28, 2026 | Aug 31, 2025 | May 31, 2025 | Feb 28, 2025 |
|---|---|---|---|---|---|---|
| Operating expenses | ||||||
| General and administrative | — | — | ||||
| Exploration expense | ||||||
| Total operating expenses | ||||||
| Other income (expense) | ||||||
| Change in fair value of warrant liability | — | |||||
| Other expenses | — | — | ||||
| Total other income (expense) | ||||||
| Net income (loss) | ||||||
| Preferred stock dividends | ||||||
| Net income (loss) attributable to common stockholders | — | — | ||||
| Earnings (loss) per share, common stock - Basic (in dollars per share) | ||||||
| Earnings (loss) per share, common stock - Diluted (in dollars per share) |