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Note 3 - Inventories - Components of Inventories (Details) - USD ($)
Oct. 31, 2016
Oct. 31, 2015
Finished goods $ 4,657,779 $ 6,116,989
Work in process 2,591,885 2,918,803
Raw materials 7,515,717 8,514,718
Production supplies 258,585 265,570
Total $ 15,023,966 $ 17,816,080