Quarterly report pursuant to Section 13 or 15(d)

NET LOSS PER SHARE OF COMMON STOCK (Details)

v3.20.1
NET LOSS PER SHARE OF COMMON STOCK (Details) - shares
3 Months Ended 6 Months Ended
Apr. 30, 2020
Apr. 30, 2019
Apr. 30, 2020
Apr. 30, 2019
Share-based Payment Arrangement, Option [Member]        
NET LOSS PER SHARE OF COMMON STOCK (Details) [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 8,382,234 7,280,668 8,382,234 7,280,668
Warrant [Member]        
NET LOSS PER SHARE OF COMMON STOCK (Details) [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 500,000 854,400 500,000 854,400