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STOCKHOLDERS' EQUITY (DEFICIT) (Details Narrative) |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
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Apr. 15, 2021 shares | Apr. 09, 2021 USD ($) $ / shares | Apr. 08, 2020 USD ($) d $ / shares shares | Mar. 31, 2020 USD ($) $ / shares shares | Feb. 29, 2020 shares | Jan. 31, 2020 USD ($) shares | May 31, 2021 USD ($) $ / shares shares | May 31, 2020 USD ($) $ / shares shares | May 31, 2021 USD ($) $ / shares shares | May 31, 2020 USD ($) $ / shares shares | Nov. 30, 2020 USD ($) $ / shares shares | Nov. 30, 2019 $ / shares shares | Jun. 08, 2020 $ / shares
Number of shares issued | shares |  |  |  |  |  |  |  |  |  |  | 20,000 |  |
Dividend payable | $ |  |  |  |  |  |  |  |  |  |  | $ 400,000 |  |
Conversion price | $ / shares |  |  | $ 1.50 |  |  |  |  |  |  |  |  |  |
Number of shares converted (in shares) | shares |  |  | 3,333 |  |  |  |  |  |  |  |  |  |
Value of converted shares | $ |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |
Number of series A preferred stock converted to common stock | shares | 4,636,649 |  |  |  |  |  |  |  |  |  |  |  |
Preferred stock, par value per share | $ / shares |  |  |  |  |  |  | $ 0.001 |  | $ 0.001 |  | $ 0.001 | $ 0.001 |
Number of shares issued upon conversion | shares | 695,498 |  |  |  |  |  |  |  |  |  |  |  |
Warrant exercises | $ |  |  |  |  |  |  | $ 1,083,000 | $ 4,022,000 | $ 1,217,000 | $ 4,022,000 | $ 8,028,261 |  |
Warrants granted | shares |  |  |  |  |  |  |  |  |  |  | 2,146,836 | 22,223,058 |
Number of warrant issued for consultant for marketing services | shares |  |  |  |  |  |  |  |  | 15,000 |  |  |  |
Exercise price of warrants | $ / shares |  |  |  |  |  |  | $ 2.50 |  | $ 2.50 |  | $ 0.25 |  |
Proceeds from issuance of warrant | $ |  |  | $ 239,747 |  |  |  |  |  |  |  |  |  |
Warrant inducement expense | $ |  |  |  |  |  |  |  | 845,000 |  | 845,000 | $ 845,415 |  |
Convertible Noteholders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  | $ 100,000 |  | $ 100,000 | $ 124,603 |  |
Warrants granted | shares |  |  |  |  |  | 49,842 |  |  |  | 49,842 |  |  |
Number of warrant issued for consultant for marketing services | shares |  |  |  |  |  |  |  |  |  |  | 150,000 |  |
Accrued interest satisfied by issuance of warrants | $ |  |  |  |  |  | $ 100,000 |  |  |  | $ 100,000 | $ 124,603 |  |
Exercise price of warrants | $ / shares |  |  |  |  |  |  |  | $ 2.50 |  | $ 2.50 | $ 0.25 |  |
Warrants issued to note holders for every $1,000 of accrued interest | shares |  |  |  |  |  |  |  |  |  | 400 |  |  |
Warrants granted, exercisable period |  |  |  |  |  |  |  |  |  |  | 3 years 9 months 18 days |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price | $ / shares |  |  | $ 1.50 |  |  |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Market price | $ / shares |  |  | $ 2.50 |  |  |  |  |  |  |  |  |  |
Share issue price | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.60
Warrant exercises | $ |  |  |  |  |  |  |  | $ 2,000 |  | $ 2,000 | $ 42,010 |  |
Warrant exercises (in shares) | shares |  |  |  |  |  |  | 433,265 | 2,009,703 | 486,684 | 2,009,703 | 42,009,858 |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  | 1,997,911 |  |  | 433,265 |  | 486,684 | 11,792 |  |  |
Warrant exercises | $ |  |  |  | $ 3,200,000 |  |  | $ 1,000,000 |  | $ 1,200,000 | $ 20,000 |  |  |
Warrant exercises (in shares) | shares |  |  |  | 1,997,911 |  |  | 433,265 |  | 486,684 | 11,792 |  |  |
Warrants granted | shares |  |  |  |  | 15,000 |  |  |  |  |  |  |  |
Exercise price of warrants | $ / shares |  |  |  | $ 1.60 |  |  | $ 2.50 | $ 1.80 | $ 2.50 | $ 1.80 |  |  |
Warrant inducement expense | $ |  |  |  | $ 800,000 |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  | 1,391 |  |  |  |  |  |  |  |  |  |
Value of shares issued | $ |  |  | $ 11,600,000 |  |  |  |  |  |  |  |  |  |
Issue costs | $ |  |  | $ 29,000 |  |  |  |  |  |  |  |  |  |
Fair value per share | $ / shares |  |  | $ 8,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  | $ 7,000,000 |  |  |  |  |  |  |  |  |  |
Dividend payable | $ |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |
Dividend declared (in dollars per share) | $ / shares |  | $ 750 |  |  |  |  |  |  |  |  |  |  |
Preferred stock, par value per share | $ / shares |  | $ 0.001 |  |  |  |  |  |  |  |  |  |  |
Dividend record date |  | Apr. 12, 2021 |  |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Share issue price | $ / shares |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |
Percentage of dividend accured |  |  | 10.00% |  |  |  |  |  |  |  |  |  |
Consecutive trading days | d |  |  | 20 |  |  |  |  |  |  |  |  |  |

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