Annual report pursuant to Section 13 and 15(d)

SHAREHOLDERS' EQUITY (Details) - Stock options outstanding and exercisable under the 2010 Share Plan

v3.19.3.a.u2
SHAREHOLDERS' EQUITY (Details) - Stock options outstanding and exercisable under the 2010 Share Plan - 2010 Share Plan [Member]
12 Months Ended
Oct. 31, 2019
$ / shares
shares
Range Of Exercise Prices $0.67 To $2.30 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Options Outstanding, Number | shares 574,000
Options Outstanding,Weighted Average Remaining Contractual Life 6 years 204 days
Options Outstanding, Weighted Average Exercise Price | $ / shares $ 1.54
Options Exercisable, Number | shares 458,026
Options Exercisable,Weighted Average Remaining Contractual Life 6 years 98 days
Options Exercisable, Weighted Average Exercise Price | $ / shares $ 1.70
Range Of Exercise Prices $2.58 To $3.13 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Options Outstanding, Number | shares 890,134
Options Outstanding,Weighted Average Remaining Contractual Life 3 years 229 days
Options Outstanding, Weighted Average Exercise Price | $ / shares $ 2.79
Options Exercisable, Number | shares 890,134
Options Exercisable,Weighted Average Remaining Contractual Life 4 years 94 days
Options Exercisable, Weighted Average Exercise Price | $ / shares $ 2.79
Range Of Exercise Prices $3.46 To $5.75 [Member]  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Options Outstanding, Number | shares 534,534
Options Outstanding,Weighted Average Remaining Contractual Life 8 years 69 days
Options Outstanding, Weighted Average Exercise Price | $ / shares $ 4.16
Options Exercisable, Number | shares 352,034
Options Exercisable,Weighted Average Remaining Contractual Life 7 years 361 days
Options Exercisable, Weighted Average Exercise Price | $ / shares $ 4.52