Note 12 - Noncontrolling Interests - Weighted Average Assumptions (Details) - $ / shares |
12 Months Ended | |
|---|---|---|
Nov. 30, 2025 |
Nov. 30, 2024 |
|
| Statement Line Items [Line Items] | ||
| Risk-free interest rate | 2.41% | 3.18% |
| Expected life (years) | 2.87 | 2.87 |
| Expected volatility | 42.55% | 46.66% |
| Expected dividend yield | 0.00% | 0.00% |
| Estimated forfeiture rate | 2.45% | 3.69% |
| U.S. GoldMining Inc. [member] | ||
| Statement Line Items [Line Items] | ||
| Share price at grant date (US) (in dollars per share) | $ 8.74 | $ 5.25 |
| Risk-free interest rate | 4.32% | 4.45% |
| Expected life (years) | 3 | 3 |
| Expected volatility | 55.45% | 54.94% |
| Expected dividend yield | 0.00% | 0.00% |
| Estimated forfeiture rate | 0.00% | 0.00% |