Note 13 - Stockholders' Equity (Details) - Schedule of Stockholders' Equity Note, Warrants or Rights - $ / shares |
3 Months Ended | 12 Months Ended |
|---|---|---|
Aug. 31, 2018 |
May 31, 2018 |
|
| Schedule of Stockholders' Equity Note, Warrants or Rights [Abstract] | ||
| Warrants outstanding, Number of Shares | 4,700,988 | |
| Warrants outstanding, Weighted Average Exercise Price | $ 0.57 | $ 0.75 |
| Granted, Number of Shares | 19,311,092 | |
| Granted, Weighted Average Exercise Price | $ 0.58 | |
| Exercised, Number of Shares | (350,000) | |
| Exercised, Weighted Average Exercise Price | $ 0.75 | |
| Cancelled / Expired, Number of Shares | 0 | |
| Cancelled / Expired, Weighted Average Exercise Price | $ 0 | |
| Warrants outstanding, Number of Shares | 23,662,080 |
| 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|