Note 10 - Business and Credit Concentrations (Details Textual) - Customer Concentration Risk [Member] - Revenue Benchmark [Member]	3 Months Ended		6 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Apr. 30, 2026	Apr. 30, 2025
Concentration Risk, Number of Customers	1	1	1	1
One Customer [Member]
Concentration Risk, Percentage	16.90%	22.50%	16.50%	18.70%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.