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Note 2 - Concentrations of Credit Risk (Tables)
9 Months Ended
Jul. 31, 2024
Notes Tables  
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
   

Three Months Ended July 31,

   

Nine Months Ended July 31,

 
   

2024

   

2023

   

2024

   

2023

 

Wireless provider A

    -       -       -       13%  

Wireless provider B

    11%       -       -       -  

Distributor A

    13%       -       -       -  

Distributor B

    -       12%       -       -