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Note 2 - Concentrations of Credit Risk (Tables)
9 Months Ended
Jul. 31, 2025
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
 

Three Months Ended July 31,

 

Nine Months Ended July 31,

 

2025

 

2024

 

2025

2024

Wireless provider A

  11%     11%     -   -

Distributor A

  15%     -     -   -

Distributor B

  -     13%     -   -