Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable that were not granted under the 2003 Share Plan, the 2010 Share Plan or the 2018 Plan

v3.20.1
STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable that were not granted under the 2003 Share Plan, the 2010 Share Plan or the 2018 Plan - Stock Options Not Granted Under 2003 Share Plan 2010 Share Plan Or 2018 Share Plan [Member] - $ / shares
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Range Of Exercise Prices $2.58 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding and Exercisable, Number 1,698,000  
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life 2 years 6 months  
Options Outstanding and Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 2.58  
Range Of Exercise Prices $0.67 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding and Exercisable, Number   1,046,000
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life   3 years 200 days
Options Outstanding and Exercisable, Weighted Average Exercise Price (in Dollars per share)   $ 0.67
Range Of Exercise Prices $2.58 To $5.56 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding and Exercisable, Number   734,000
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life   3 years 32 days
Options Outstanding and Exercisable, Weighted Average Exercise Price (in Dollars per share)   $ 2.88