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Note 4 - Inventories - Components of Inventories (Details) - USD ($)
Apr. 30, 2017
Oct. 31, 2016
Finished goods $ 5,112,538 $ 4,657,779
Work in process 3,437,078 2,591,885
Raw materials 8,687,127 7,515,717
Production supplies 302,956 258,585
Total $ 17,539,699 $ 15,023,966