Quarterly report pursuant to Section 13 or 15(d)

STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2010 Share Plan

v3.19.2
STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2010 Share Plan - 2010 Share Plan [Member] - $ / shares
9 Months Ended
Jul. 31, 2019
Jul. 31, 2018
Range Of Exercise Prices $0.67 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 938,000 943,000
Options Outstanding,Weighted Average Remaining Contractual Life 5 years 343 days 6 years 343 days
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 0.67 $ 0.67
Options Exercisable, Number 799,388 653,142
Options Exercisable,Weighted Average Remaining Contractual Life 5 years 215 days 6 years 65 days
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 0.67 $ 0.67
Range Of Exercise Prices $2.27 To $3.01 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 600,134 729,712
Options Outstanding,Weighted Average Remaining Contractual Life 3 years 295 days 5 years 76 days
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 2.58 $ 2.61
Options Exercisable, Number 600,134 579,314
Options Exercisable,Weighted Average Remaining Contractual Life 3 years 295 days 5 years 102 days
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 2.58 $ 2.60
Range Of Exercise Prices $3.46 To $5.75 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number 472,534  
Options Outstanding,Weighted Average Remaining Contractual Life 8 years 186 days  
Options Outstanding, Weighted Average Exercise Price (in Dollars per share) $ 4.05  
Options Exercisable, Number 240,034  
Options Exercisable,Weighted Average Remaining Contractual Life 8 years 69 days  
Options Exercisable, Weighted Average Exercise Price (in Dollars per share) $ 4.43  
Range Of Exercise Prices $3.46 To $7.00 [Member]    
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]    
Options Outstanding, Number   351,734
Options Outstanding,Weighted Average Remaining Contractual Life   8 years 270 days
Options Outstanding, Weighted Average Exercise Price (in Dollars per share)   $ 3.73
Options Exercisable, Number   51,734
Options Exercisable,Weighted Average Remaining Contractual Life   1 year 167 days
Options Exercisable, Weighted Average Exercise Price (in Dollars per share)   $ 5.27