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Note 3 - Inventories - Components of Inventories (Details) - USD ($)
Oct. 31, 2020
Oct. 31, 2019
Finished goods $ 4,663,978 $ 5,845,973
Work in process 4,165,289 3,321,216
Raw materials 8,010,794 8,632,230
Production supplies 259,706 296,208
Total $ 17,099,767 $ 18,095,627