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STOCKHOLDERS’ EQUITY (DEFICIT) (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2021 | Nov. 30, 2020
Equity [Abstract] |  |
Schedule of assumptions used for warrants |  | The assumptions that the Company used to determine the grant-date fair value of warrants granted for the years ended November 30, 2020 and 2019 were as follows:
|  |  | 2020 |  | 2019
| Risk free rate |  |  | 0.35 – 1.57% |  |  |  | 1.69 – 3.05% |
| Expected dividends |  |  | 0 | % |  |  | 0 | %
| Expected volatility |  |  | 98.28 – 109.93% |  |  |  | 150 – 159% |
| Expected life |  |  | 3.54 – 3.77 years |  |  |  | 4.35 – 5 years |
| Market price of the Company's common stock on date of grant |  | $ | 0.25 |  |  |  | $0.14 – 0.16 |
| Exercise price |  | $ | 0.25 |  |  | $ | 0.25 |
Schedule of warrants activity | The following table summarizes warrant activity, which includes the incentive warrants, during the six months ended May 31, 2021:
|  |  |  |  | Weighted-Average |
|  |  |  |  | Exercise |
|  | Number of |  |  | Price |
|  | Warrants |  |  | $ |
Outstanding at November 30, 2020 |  |  | 585,739 |  |  |  | 2.40 |
Granted |  |  | — |  |  |  | — |
Exercised |  |  | (486,684 | ) |  |  | 2.50 |
Outstanding at May 31, 2021 |  |  | 99,055 |  |  |  | 1.91 |
Exercisable at May 31, 2021 |  |  | 99,055 |  |  |  | 1.91 |
| The following table summarizes warrant activity, which includes the incentive warrants, for the year ended November 30, 2020:
|  |  | Number of Warrants |  |  | Weighted-Average Exercise Price $ |
Outstanding, November 30, 2018 |  |  |  | 26,041,160 |  |  |  | 0.19 |
Granted |  |  |  | 22,223,058 |  |  |  | 0.25 |
Expired |  |  |  | (2,476,999 | ) |  |  | (0.16 | )
Outstanding, November 30, 2019 |  |  |  | 45,787,219 |  |  |  | 0.22 |
Granted |  |  |  | 2,146,836 |  |  |  | 0.25 |
Exercised |  |  |  | (42,076,668 | ) |  |  | (0.21 | )
Outstanding, November 30, 2020 |  |  |  | 5,857,386 |  |  |  | 0.24 |
Exercisable, November 30, 2020 |  |  |  | 5,857,386 |  |  |  | 0.24 |
Exercisable. November 30, 2019 |  |  |  | 45,037,219 |  |  |  | 0.22
Schedule weighted-average remaining contract |  | The warrants outstanding at the end of the year had weighted-average remaining contract lives as follows:
|  | 2020 |  |  | 2019 |
|  |  | (years) |  |  |  | (years) |
Total outstanding warrants |  |  | 2.82 |  |  |  | 3.55 |
Total exercisable warrants |  |  | 2.82 |  |  |  | 3.50 |

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of warrants. + References No definition available. + Details
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- Definition Disclosure for Schedule weighted remaining contract . + References No definition available. + Details
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- Definition Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775 + Details
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