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Note 4 - Inventories (Tables)
6 Months Ended
Apr. 30, 2025
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

April 30,

   

October 31,

 
   

2025

   

2024

 

Finished goods

  $ 5,440,280     $ 5,098,148  

Work in process

    4,717,308       3,724,999  

Raw materials

    8,569,770       9,562,563  

Production supplies

    330,362       339,607  

Total

  $ 19,057,720     $ 18,725,317