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Note 4 - Inventories - Components of Inventories (Details) - USD ($)
Apr. 30, 2016
Oct. 31, 2015
Finished goods $ 5,124,103 $ 6,116,989
Work in process 2,430,164 2,918,803
Raw materials 8,728,557 8,514,718
Production supplies 259,204 265,570
Total $ 16,542,028 $ 17,816,080