Quarterly report pursuant to Section 13 or 15(d)

SCHEDULE OF FAIR VALUE MEASUREMENTS (Details)

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SCHEDULE OF FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
Apr. 30, 2022
Oct. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds: Cash and cash equivalents $ 25,294 $ 28,949
Certificates of deposit: Cash and cash equivalents 2,250  
Certificates of deposit: Short-term investments 1,200 2,000
US Treasury bills Short-term investments 3,299 4,599
Total financial assets 32,043 35,548
Fair Value, Inputs, Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds: Cash and cash equivalents 25,294 28,949
Certificates of deposit: Cash and cash equivalents 2,250  
Certificates of deposit: Short-term investments
US Treasury bills Short-term investments
Total financial assets 27,544 28,949
Fair Value, Inputs, Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds: Cash and cash equivalents
Certificates of deposit: Cash and cash equivalents  
Certificates of deposit: Short-term investments 1,200 2,000
US Treasury bills Short-term investments 3,299 4,599
Total financial assets 4,499 6,599
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Money market funds: Cash and cash equivalents
Certificates of deposit: Cash and cash equivalents  
Certificates of deposit: Short-term investments  
US Treasury bills Short-term investments
Total financial assets