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Property - Summary of Property and Equipment (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Property, net    
Land $ 2,729,790us-gaap_Land $ 2,729,790us-gaap_Land
Buildings and improvements 11,370,105us-gaap_BuildingsAndImprovementsGross 11,370,105us-gaap_BuildingsAndImprovementsGross
Rental trucks under capital leases 210,138us-gaap_CapitalLeasedAssetsGross 210,138us-gaap_CapitalLeasedAssetsGross
Total 14,310,033us-gaap_PropertyPlantAndEquipmentGross 14,310,033us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation 11,444,936us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment 11,420,740us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property - net $ 2,865,097us-gaap_PropertyPlantAndEquipmentNet $ 2,889,293us-gaap_PropertyPlantAndEquipmentNet