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Note 4 - Property and Equipment, Net - Property, Plant and Equipment (Details) (USD $)
Oct. 31, 2014
Oct. 31, 2013
Land $ 36,379,146us-gaap_PropertyPlantAndEquipmentGross $ 34,553,789us-gaap_PropertyPlantAndEquipmentGross
Less accumulated amortization and depreciation (23,265,701)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (21,726,591)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property and equipment, net 13,113,445us-gaap_PropertyPlantAndEquipmentNet 12,827,198us-gaap_PropertyPlantAndEquipmentNet
Building and Building Improvements [Member]    
Land 8,120,110us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
7,990,110us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
Construction in Progress [Member]    
Land 493,876us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember
251,727us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember
Furniture and Fixtures [Member]    
Land 957,032us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
950,640us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
Land [Member]    
Land 3,144,068us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
3,144,068us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
Machinery and Equipment [Member]    
Land $ 23,664,060us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
$ 22,217,244us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember