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Note 4 - Property and Equipment, Net - Property and Equipment, Net (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Jun. 30, 2014
Property and equipment, gross $ 7,785us-gaap_PropertyPlantAndEquipmentGross $ 7,544us-gaap_PropertyPlantAndEquipmentGross
Less: Accumulated depreciation and amortization (6,354)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (6,305)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total 1,431us-gaap_PropertyPlantAndEquipmentNet 1,239us-gaap_PropertyPlantAndEquipmentNet
Land and Building [Member]    
Property and equipment, gross 1,250us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandAndBuildingMember		 1,250us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandAndBuildingMember
Leasehold Improvements [Member]    
Property and equipment, gross 1,151us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember		 1,135us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
Machinery and Equipment [Member]    
Property and equipment, gross 5,367us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember		 5,096us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
Transportation Equipment [Member]    
Property and equipment, gross $ 17us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_TransportationEquipmentMember		 $ 63us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_TransportationEquipmentMember