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PROPERTY AND EQUIPMENT (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Property and equipment      
Gross Property and Equipment $ 10,295,470us-gaap_PropertyPlantAndEquipmentGross $ 9,765,922us-gaap_PropertyPlantAndEquipmentGross  
Accumulated Depreciation (8,798,558)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (8,116,973)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment  
Property, Plant and Equipment, Net 1,496,912us-gaap_PropertyPlantAndEquipmentNet 1,648,949us-gaap_PropertyPlantAndEquipmentNet  
Depreciation expense 829,292us-gaap_Depreciation 840,382us-gaap_Depreciation 920,368us-gaap_Depreciation
Leasehold Improvements      
Property and equipment      
Gross Property and Equipment 581,990us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
517,907us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
 
Machinery and Equipment      
Property and equipment      
Gross Property and Equipment 6,635,380us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
6,398,396us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
 
Information Technology & Office Equipment      
Property and equipment      
Gross Property and Equipment 2,163,945us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeEquipmentMember
1,961,968us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeEquipmentMember
 
Laboratory Equipment      
Property and equipment      
Gross Property and Equipment 594,946us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherMachineryAndEquipmentMember
513,616us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OtherMachineryAndEquipmentMember
 
Transportation Equipment      
Property and equipment      
Gross Property and Equipment $ 319,209us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_TransportationEquipmentMember
$ 374,035us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_TransportationEquipmentMember