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Note 4 - Inventories - Components of Inventories (Details) - USD ($)
Jul. 31, 2016
Oct. 31, 2015
Finished goods $ 4,616,353 $ 6,116,989
Work in process 2,318,779 2,918,803
Raw materials 7,719,119 8,514,718
Production supplies 289,862 265,570
Total $ 14,944,113 $ 17,816,080