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NET LOSS PER SHARE OF COMMON STOCK (Details Narrative) - shares
9 Months Ended
Jul. 31, 2021
Jul. 31, 2020
Share-based Payment Arrangement, Option [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares 10,303,626 8,101,658
Warrant [Member]    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Antidilutive shares 860,000 500,000