STOCKHOLDERS' EQUITY (Details) - Schedule of Stockholders' Equity Note, Warrants or Rights - $ / shares |
12 Months Ended | ||
|---|---|---|---|
May 31, 2019 |
May 31, 2021 |
May 31, 2020 |
|
| Schedule of Stockholders' Equity Note, Warrants or Rights [Abstract] | |||
| Warrants outstanding, Number of Shares | 54,818,985 | 54,835,145 | |
| Warrants outstanding, Weighted Average Exercise Price | $ 0.53 | $ 0.53 | $ 0.53 |
| Granted, Number of Shares | 0 | 16,160 | |
| Granted, Weighted Average Exercise Price | $ 0 | $ 1.10 | |
| Exercised, Number of Shares | 0 | 0 | |
| Exercised, Weighted Average Exercise Price | $ 0 | $ 0 | |
| Cancelled / Expired, Number of Shares | (837,500) | 0 | |
| Cancelled / Expired, Weighted Average Exercise Price | $ 0.75 | $ 0 | |
| Warrants outstanding, Number of Shares | 53,997,645 | 54,835,145 | |
| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights cancelled or expired. No definition available.
|
| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights exercised. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights expired or cancelled. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights exercised. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights granted. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights outstanding. No definition available.
|
| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights granted. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available.
|