Note 3 - Loss Per Share (Details Textual) - shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Nov. 30, 2025 |
Nov. 30, 2024 |
Nov. 30, 2025 |
Nov. 30, 2024 |
|
| Preferred Stock Into Common Stock [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 3,333,333 | 3,333,333 | ||
| Warrants Exercisable Into Common Stock [Member] | ||||
| Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | 500,000 | 500,000 | 500,000 | 500,000 |