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STOCKHOLDERS' EQUITY (DEFICIT) (Details Narrative 1) |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 10, 2021 USD ($) | Oct. 25, 2020 | Jun. 08, 2020 USD ($) $ / shares shares | Jun. 03, 2020 $ / shares shares | Jun. 01, 2020 USD ($) $ / shares shares | Apr. 08, 2020 USD ($) d $ / shares shares | Aug. 31, 2020 USD ($) shares | Jul. 30, 2020 USD ($) $ / shares shares | May 30, 2020 USD ($) $ / shares shares | Mar. 31, 2020 USD ($) $ / shares shares | Jan. 31, 2020 USD ($) shares | Sep. 16, 2019 USD ($) $ / shares shares | Jul. 22, 2019 USD ($) $ / shares shares | May 20, 2019 USD ($) $ / shares shares | Apr. 22, 2019 USD ($) $ / shares shares | Oct. 22, 2018 USD ($) $ / shares shares | Aug. 31, 2020 USD ($) | May 31, 2020 USD ($) $ / shares | May 31, 2021 $ / shares shares | May 31, 2020 USD ($) $ / shares | Nov. 30, 2020 USD ($) $ / shares shares | Nov. 30, 2019 $ / shares shares | Apr. 09, 2021 USD ($)
Number of shares issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000 |  |
Debt extinguishment | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,026,657 |  |
Dividend payable | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 400,000 |  |
Debt instrument conversion price |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares converted (in shares) | shares |  |  |  |  |  | 33,333 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value of converted shares | $ |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt indebtedness | $ | $ 190,300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,290,373 |
Number of warrant issued for consultant for marketing services | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,000 |  |  |  |
Class of warrant or right grant date fair value | $ |  |  |  |  |  | 11,591,623 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.50 |  | $ 0.25 |  |
Warrant inducement expense | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (845,000) |  | $ (845,000) | $ (845,415) |  |
Proceeds from issuance of warrant | $ |  |  |  |  |  | 239,747 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant fair value at reduced price | $ |  |  |  |  |  | $ 29,150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share issue price |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of dividend accured |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consecutive trading days | d |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt indebtedness | $ |  |  |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of conversion features |  |  |  |  |  | Holders of shares of Series A Preferred Stock are not entitled to vote with the holders of common stock, however, for so long as there are 423 shares of Series A Preferred Stock outstanding, the Company is required to obtain the consent of the holders of the Series A Preferred Stock to take certain corporate actions, including to incur indebtedness in excess of $250,000 in the aggregate. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  |  |  | 1,391 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt extinguishment | $ |  |  |  |  |  | $ 11,591,623 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt issue costs | $ |  |  |  |  |  | 29,150 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of debt | $ |  |  |  |  |  | 8,333 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  | $ 7,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000
Preferred stock, shares outstanding | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 1,391 | 0 |
Security Purchase Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant expiry date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Oct. 22, 2023 |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,498,418 |  |
Class of warrant or right grant date fair value | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 239,747 |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |
Warrant fair value at reduced price per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.16 |  |
Warrant fair value at the contractual price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |
Description of conversion features |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | The holders reflecting 4,000 warrants for each $1,000 of unpaid interest accrued on the Notes. |  |
Convertible Notes Payable [Member] | Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares converted (in shares) | shares |  |  |  |  |  | 1,391 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Notes Payable [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  |  |  | 1,498,418 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Private Placement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional warrant issued | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 992,614 |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |
Series A Preferred Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument conversion price |  |  |  |  |  | $ 1.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accredited Investors [Member] | Convertible Notes Payable [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,080.265 | 2,080.265 | 1,275.0 |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,080,265 | $ 2,080,265 | $ 1,275,000 |  |  |  |  |  |  |
Units issued, price per unit |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 | $ 1,000 | $ 1,000 |  |  |  |  |  |  |
Secured convertible promissory note issued per unit |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 | $ 1,000 | $ 1,000 |  |  |  |  |  |  |
Interest rate percentage |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% | 10.00% |  |  |  |  |  |  |
Debt instrument conversion price |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.15 | $ 0.15 | $ 0.15 |  |  |  |  |  |  |
Number of warrants granted per unit | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 | 4 | 4 |  |  |  |  |  |  |
Number of securities called by each warrant | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 1 | 1 |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,321,058 | 8,321,058 | 5,100,000 |  |  |  |  |  |  |
Class of warrant or right grant date fair value | $ |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 888,444 | $ 888,444 | $ 524,089 |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 | $ 0.25 | $ 0.25 |  |  |  |  |  |  |
Several Investors [Member] | Convertible Notes Payable [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued | shares |  |  |  |  |  |  |  |  |  |  |  |  | 2,282.5 |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,282,500 |  |  |  |  |  |  |  |  |  |
Units issued, price per unit |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |
Secured convertible promissory note issued per unit |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |
Interest rate percentage |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |
Debt instrument conversion price |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.15 |  |  |  |  |  |  |  |  |  |
Number of warrants granted per unit | shares |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |
Number of securities called by each warrant | shares |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  | 9,130,000 |  |  |  |  |  |  |  |  |  |
Class of warrant or right grant date fair value | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,038,081 |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |  |  |  |  |  |  |  |  |
Two Investors [Member] | Convertible Notes Payable [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units issued | shares |  |  |  |  |  |  |  |  |  |  |  | 818.0 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  |  |  |  |  | $ 818,000 |  |  |  |  |  |  |  |  |  |  |
Units issued, price per unit |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |
Secured convertible promissory note issued per unit |  |  |  |  |  |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |
Interest rate percentage |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Debt instrument conversion price |  |  |  |  |  |  |  |  |  |  |  | $ 0.15 |  |  |  |  |  |  |  |  |  |  |
Number of warrants granted per unit | shares |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |
Number of securities called by each warrant | shares |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  | 3,272,000 |  |  |  |  |  |  |  |  |  |  |
Class of warrant or right grant date fair value | $ |  |  |  |  |  |  |  |  |  |  |  | $ 363,846 |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |  |  |  |  |  |  |  |  |  |
Convertible Noteholders [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  | 100,000 | $ 124,603 |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  | 498,418 |  |  |  |  |  |  |  |  |  | 498,418 |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.50 |  | $ 2.50 | $ 0.25 |  |
Class Of Warrant Or Right Grants In Period | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 498,418 |  |
Number of warrants for every amount of accrued interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,000 warrants for every $1,000 of accrued interest |  |
Warrants granted, exercisable period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years 9 months 18 days |  |
Accrued interest per warrant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 124,603 |  |
Consultant Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |
Class Of Warrant Or Right Grants In Period | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 150,000 |  |
Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  | 19,979,107 |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant [Member] | Security Purchase Agreements [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.16 |  |
Warrant [Member] | Security Purchase Agreements [Member] | Minimum [Member] | Monte Carlo Simulation Model [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.16 |  |
Warrant [Member] | Security Purchase Agreements [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25 |  |
Warrant [Member] | Security Purchase Agreements [Member] | Maximum [Member] | Monte Carlo Simulation Model [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.25 |  |
Warrant [Member] | Convertible Notes Payable [Member] | Securities Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  |  |  | 4,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Market price |  |  |  |  |  | $ 2.50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share issue price |  |  | $ 0.60 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued for service (in shares) | shares |  |  | 72,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share price |  |  | $ 0.60 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payroll expense | $ |  |  | $ 43,200 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] | Security Purchase Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,200,000 |  |
Common Stock [Member] | Warrant [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of warrant issued |  |  |  |  |  |  |  |  |  | These warrants were issued on October 22, 2018, April 22, 2019, May 20, 2019, July 22, 2019, September 16, 2019 and January 15, 2020. |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  | 17,773,881 | 572,354 | 18,346,235 |  | 18,346,235 |  |  | 19,979,107 |  |  |  |  |  |  |  |  |  |  |  |  |
Agreegate price of warrant | $ |  |  |  |  | $ 3,300,000 |  | $ 3,300,000 |  |  | $ 3,200,000 |  |  |  |  |  |  | $ 3,300,000 |  |  |  |  |  |
Maturity date |  |  | Aug. 31, 2020 | Jul. 03, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  | $ 0.18 | $ 0.15 | $ 0.155 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of fair value of warrant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Fair value at the reduced price of $0.16 per warrant and fair value at the contractual price of $0.25. The fair values of the warrants at $0.16 and $0.25. |  |
Warrant inducement expense | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 845,415 |  |
Common Stock [Member] | Warrant [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  | $ 0.16 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] | Warrant [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  |  |  | $ 0.25 |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock [Member] | Warrant [Member] | Two Consultants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of warrant issued |  | On October 25, 2020, the Company notified holders of the October 2018 warrants exercisable at $0.25 that it was exercising its early termination right and that the respective warrants would expire November 27, 2020. Between October 25, 2020 and November 27, 2020, holders of 1,890,787 warrants issued during the October 2018 financing and outstanding as of October 25, 2020 exercised warrants for 1,890,787 shares of common stock, generating approximately $470,000. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 750,000 |
Exercise price of warrants |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.155 |
Common Stock [Member] | Warrant [Member] | Consultants [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued | shares |  |  |  |  |  |  |  | 750,000 | 117,925 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of warrant issued | shares |  |  |  |  |  |  |  |  | 117,925 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise price of warrants |  |  |  |  |  |  |  | $ 0.155 | $ 0.18 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of warrant | $ |  |  |  |  |  |  |  | $ 683,190 | $ 21,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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