Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2018 Share Plan - 2018 Share Plan [Member] - $ / shares
 3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Range Of Exercise Prices $3.70 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 3,100,000  
Options Outstanding,Weighted Average Remaining Contractual Life 8 years 98 days  
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 3.70  
Options Exercisable, Number 1,433,334  
Options Exercisable,Weighted Average Remaining Contractual Life 8 years 98 days  
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 3.70  
Range Of Exercise Prices $3.84 To $4.61 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 1,635,000  
Options Outstanding,Weighted Average Remaining Contractual Life 9 years 62 days  
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 3.88  
Options Exercisable, Number 365,282  
Options Exercisable,Weighted Average Remaining Contractual Life 8 years 116 days  
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 3.92  
Range Of Exercise Prices $3.70 To $4.61 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number   3,482,000
Options Outstanding,Weighted Average Remaining Contractual Life   9 years 98 days
Options Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 3.73
Options Exercisable, Number   992,780
Options Exercisable,Weighted Average Remaining Contractual Life   9 years 98 days
Options Exercisable, Weighted Average Exercise Price (in Dollars per share)   $ 3.72