STOCKHOLDERS' EQUITY (Details) - Schedule of Stockholders' Equity Note, Warrants or Rights - $ / shares |
9 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
May 31, 2020 |
May 31, 2019 |
Feb. 28, 2022 |
May 31, 2021 |
May 31, 2020 |
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| Schedule of Stockholders' Equity Note, Warrants or Rights [Abstract] | |||||
| Warrants outstanding, Number of Shares | 54,835,145 | 54,818,985 | 53,997,645 | 54,835,145 | |
| Warrants outstanding, Weighted Average Exercise Price | $ 0.53 | $ 0.53 | $ 0.5 | $ 0.53 | $ 0.53 |
| Granted, Number of Shares | 3,498,637 | 0 | 16,160 | ||
| Granted, Weighted Average Exercise Price | $ 0.41 | $ 0 | $ 1.1 | ||
| Exercised, Number of Shares | 0 | 0 | 0 | ||
| Exercised, Weighted Average Exercise Price | $ 0 | $ 0 | $ 0 | ||
| Cancelled / Expired, Number of Shares | (50,149,985) | (837,500) | 0 | ||
| Cancelled / Expired, Weighted Average Exercise Price | $ 0.53 | $ 0.75 | $ 0 | ||
| Warrants outstanding, Number of Shares | 54,835,145 | 7,346,297 | 53,997,645 | 54,835,145 | |
| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights cancelled or expired. No definition available.
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| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights exercised. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights expired or cancelled. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights exercised. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights granted. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of each class of warrants or rights outstanding. No definition available.
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| X | ||||||||||
- Definition Aggregate amount of each class of warrants or rights granted. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available.
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