XML 32 R21.htm IDEA: XBRL DOCUMENT v3.20.2
Note 4 - Inventories (Tables)
9 Months Ended
Jul. 31, 2020
Notes Tables  
Schedule of Inventory, Current [Table Text Block]
   

July 31

   

October 31,

 
   

2020

   

2019

 

Finished goods

  $ 5,111,049     $ 5,845,973  

Work in process

    3,343,469       3,321,216  

Raw materials

    8,411,730       8,632,230  

Production supplies

    263,213       296,208  

Total

  $ 17,129,461     $ 18,095,627