Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2018 Share Plan

v3.19.2
STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2018 Share Plan - 2018 Share Plan [Member] - $ / shares
6 Months Ended
Apr. 30, 2019
Apr. 30, 2018
Range Of Exercise Prices $3.70 To $4.61 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 3,470,000  
Options Outstanding,Weighted Average Remaining Contractual Life 9 years 10 days  
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 3.73  
Options Exercisable, Number 1,156,947  
Options Exercisable,Weighted Average Remaining Contractual Life 9 years 7 days  
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 3.72  
Range Of Exercise Prices $3.84 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number   322,000
Options Outstanding,Weighted Average Remaining Contractual Life   9 years 335 days
Options Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 3.84
Options Exercisable, Number   8,608
Options Exercisable,Weighted Average Remaining Contractual Life   9 years 335 days
Options Exercisable, Weighted Average Exercise Price (in Dollars per share)   $ 3.84