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Components of Inventories (Detail) (USD $)
Oct. 31, 2012
Oct. 31, 2011
Schedule of Inventory [Line Items]    
Raw materials and supplies $ 2,518,937 $ 2,023,108
Work in process 2,863 5,425
Finished goods 4,630,174 4,309,914
Less inventory reserve (167,428) (148,846)
Totals $ 6,984,546 $ 6,189,601