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	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
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	1,046,000
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life	3 years 109 days	4 years 149 days
Options Outstanding and Exercisable, Weighted Average Exercise Price (in Dollars per share)	$ 0.67	$ 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	734,000
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life	2 years 310 days	3 years 317 days
Options Outstanding and Exercisable, Weighted Average Exercise Price (in Dollars per share)	$ 2.88	$ 2.88