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Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Land $ 244us-gaap_Land $ 244us-gaap_Land
Buildings 1,352us-gaap_BuildingsAndImprovementsGross 1,352us-gaap_BuildingsAndImprovementsGross
Machinery and equipment 501us-gaap_MachineryAndEquipmentGross 407us-gaap_MachineryAndEquipmentGross
Office furniture and equipment 240us-gaap_FurnitureAndFixturesGross 240us-gaap_FurnitureAndFixturesGross
Vehicles 39mdit_VehiclesGross 39mdit_VehiclesGross
Computer equipment 86mdit_ComputerAndCommunicationsEquipmentGross 86mdit_ComputerAndCommunicationsEquipmentGross
Construction in progress 544us-gaap_ConstructionInProgressGross 386us-gaap_ConstructionInProgressGross
Less: Accumulated depreciation (965)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (887)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total $ 2,041us-gaap_PropertyPlantAndEquipmentNet $ 1,867us-gaap_PropertyPlantAndEquipmentNet [1]
[1] Derived from audited information