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Note 4 - Property and Equipment, Net - Schedule of Property and Equipment (Details) - USD ($)
Oct. 31, 2016
Oct. 31, 2015
Property and Equipment, gross $ 39,546,687 $ 38,554,711
Less accumulated amortization and depreciation (26,147,529) (24,650,792)
Property and equipment, net 13,399,158 13,903,919
Land [Member]    
Property and Equipment, gross 3,144,068 3,144,068
Building and Building Improvements [Member]    
Property and Equipment, gross 8,140,933 8,127,015
Machinery and Equipment [Member]    
Property and Equipment, gross 25,769,804 25,081,678
Furniture and Fixtures [Member]    
Property and Equipment, gross 903,067 909,715
Construction in Progress [Member]    
Property and Equipment, gross $ 1,588,815 $ 1,292,235