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STOCKHOLDERS' EQUITY (Details) | 6 Months Ended
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May 31, 2021 $ / shares shares
Equity [Abstract] |
Warrants outstanding, beginning of period | shares | 585,739
Warrants exercised | shares | (486,684)
Warrants outstanding, end of period | shares | 99,055
Warrants exercisable, end of period | shares | 99,055
Warrants outstanding, beginning of period, weighted average exercise price | $ / shares | $ 2.40
Warrants exercised, weighted average exercise price | $ / shares | 2.50
Warrants outstanding, end of period, weighted average exercise price | $ / shares | 1.91
Warrants exercisable, end of period, weighted average exercise price | $ / shares | $ 1.91

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