XML 33 R22.htm IDEA: XBRL DOCUMENT v3.21.2
Note 4 - Inventories (Tables)
9 Months Ended
Jul. 31, 2021
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

July 31,

   

October 31,

 
   

2021

   

2020

 

Finished goods

  $ 4,420,160     $ 4,663,978  

Work in process

    3,795,368       4,165,289  

Raw materials

    7,282,036       8,010,794  

Production supplies

    237,892       259,706  

Total

  $ 15,735,456     $ 17,099,767