FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value - Fair Value, Measurements, Recurring [Member] - USD ($)	Jul. 31, 2018	Oct. 31, 2017
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	$ 5,060,519	$ 6,579,232
Fair Value, Inputs, Level 1 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,310,519	3,079,282
Fair Value, Inputs, Level 2 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,750,000	3,500,000
Fair Value, Inputs, Level 3 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets
Cash Equivalents [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,310,519	3,079,282
Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,310,519	3,079,282
Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets
Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets
Certificates of Deposit [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,750,000	3,500,000
Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets
Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets	2,750,000	3,500,000
Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]
Financial assets