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Note 10 - Business and Credit Concentrations, Major Customers and Geographic Information (Details Textual) $ in Millions	12 Months Ended
	Oct. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)
Customer One [Member]
Revenues	$ 13.4	$ 10.9
Customer Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Number of Customers	1	1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Customer One [Member]
Concentration Risk, Percentage	18.30%	16.40%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member]
Concentration Risk, Percentage	10.50%	9.80%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]
Concentration Risk, Percentage	8.20%	7.70%
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | UNITED STATES
Concentration Risk, Percentage	79.00%	79.00%
Geographic Concentration Risk [Member] | Revenue Benchmark [Member] | Non-US [Member]
Concentration Risk, Percentage	21.00%	21.00%

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Number of customers for a concentration risk benchmark.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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