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Note 4 - Inventories (Tables)
9 Months Ended
Jul. 31, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

July 31,

   

October 31,

 
   

2025

   

2024

 

Finished goods

  $ 5,488,480     $ 5,098,148  

Work in process

    4,449,031       3,724,999  

Raw materials

    8,455,917       9,562,563  

Production supplies

    304,006       339,607  

Total

  $ 18,697,434     $ 18,725,317