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Note 11 - Revenue Recognition (Tables)
6 Months Ended
Apr. 30, 2025
Notes Tables  
Revenue from External Customers by Geographic Areas [Table Text Block]
   

Three months ended

   

Six months ended

 
   

April 30,

   

April 30,

 
   

2025

   

2024

   

2025

   

2024

 

United States 

  $ 13,625,767     $ 13,024,311     $ 25,870,014     $ 24,993,866  

Outside the United States

    3,923,981       3,087,787       7,422,351       5,972,997  

Total net sales

  $ 17,549,748     $ 16,112,098     $ 33,292,365     $ 30,966,863