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v3.23.4

Note 10 - Business and Credit Concentrations, Major Customers and Geographic Information (Details Textual) $ in Millions | 12 Months Ended
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Oct. 31, 2023 USD ($) | Oct. 31, 2022 USD ($) | Oct. 31, 2021 USD ($)
Customer One [Member] |  |  |
Revenues | $ 11.8 | $ 11.8 | $ 11.3
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |  |
Concentration Risk, Number of Customers | 1 | 1 | 1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customer One [Member] |  |  |
Concentration Risk, Percentage | 16.30% | 17.00% | 19.10%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member] |  |  |
Concentration Risk, Percentage | 6.30% | 11.20% | 9.50%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member] |  |  |
Concentration Risk, Percentage |  | 7.50% |
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | UNITED STATES |  |  |
Concentration Risk, Percentage | 82.00% | 85.00% | 82.00%
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | Non-US [Member] |  |  |
Concentration Risk, Percentage | 18.00% | 15.00% | 18.00%

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