STOCK BASED COMPENSATION (Details) - Stock options outstanding and exercisable under the 2003 Share Plan - 2003 Share Plan [Member] - $ / shares	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Range Of Exercise Prices $0.67 To $17.00 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstnding and Exercisable, Numbers	8,000
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life	164 days
Options Outstanding and Exercisable, Weighted Average Exercise Price	$ 2.34
Range Of Exercise Prices $0.67 To $17.50 [Member]
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Options Outstnding and Exercisable, Numbers		14,400
Options Outstanding and Exercisable, Weighted Average Remaining Contractual Life		1 year 21 days
Options Outstanding and Exercisable, Weighted Average Exercise Price		$ 4.81