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Note 3 - Inventories - Components of Inventories (Details) - USD ($)
Oct. 31, 2021
Oct. 31, 2020
Finished goods $ 4,211,098 $ 4,663,978
Work in process 4,023,693 4,165,289
Raw materials 7,763,325 8,010,794
Production supplies 305,692 259,706
Total $ 16,303,808 $ 17,099,767