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Note 3 - Inventories - Components of Inventories (Details) - USD ($)
Oct. 31, 2018
Oct. 31, 2017
Finished goods $ 5,454,629 $ 5,869,269
Work in process 3,877,670 2,507,434
Raw materials 7,871,145 8,108,433
Production supplies 271,311 296,313
Total $ 17,474,755 $ 16,781,449