Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value

v3.20.1
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value - USD ($)
Jan. 31, 2020
Nov. 01, 2019
Oct. 31, 2019
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Operating lease right-of-use asset $ 93,907 $ 106,221
Total financial assets 5,499,094   5,556,944
Short-term Investments [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments     2,350,000
Money Market Funds [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents 2,535,187   2,706,944
Certificates of Deposit [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents     500,000
Certificates of Deposit [Member] | Short-term Investments [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments 2,870,000    
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Operating lease right-of-use asset    
Total financial assets 2,535,187   3,206,944
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Operating lease right-of-use asset    
Total financial assets 2,870,000   2,350,000
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Operating lease right-of-use asset 93,907    
Total financial assets 93,907  
Fair Value, Recurring [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments    
Fair Value, Recurring [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments     2,350,000
Fair Value, Recurring [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments    
Fair Value, Recurring [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents 2,535,187   2,706,944
Fair Value, Recurring [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents  
Fair Value, Recurring [Member] | Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents  
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Fair Value, Inputs, Level 1 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents     500,000
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents    
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Fair Value, Inputs, Level 3 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Cash and cash equivalents    
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 1 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments    
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 2 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments 2,870,000    
Fair Value, Recurring [Member] | Certificates of Deposit [Member] | Short-term Investments [Member] | Fair Value, Inputs, Level 3 [Member]      
FAIR VALUE MEASUREMENTS (Details) - Hierarchy for financial assets measured at fair value [Line Items]      
Short-term investments