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SCHEDULE OF FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | Jan. 31, 2022 | Oct. 31, 2021
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Money market funds: Cash and cash equivalents | $ 28,312 | $ 28,949
Certificates of deposit: Cash and cash equivalents | 1,000 |
Certificates of deposit: Short-term investments | 1,450 | 2,000
US Treasury bills Short-term investments | 3,299 | 4,599
Total financial assets | 34,061 | 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 | 28,312 | 28,949
Certificates of deposit: Cash and cash equivalents | 1,000 |
Certificates of deposit: Short-term investments |  |
US Treasury bills Short-term investments |  |
Total financial assets | 29,312 | 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 | 1,450 | 2,000
US Treasury bills Short-term investments | 3,299 | 4,599
Total financial assets | 4,749 | 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 |  |

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