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PROPERTY, PLANT, AND EQUIPMENT (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Property, plant, and equipment      
Property, plant and equipment, gross $ 30,883,668 $ 30,373,549  
Accumulated depreciation (18,984,018) (17,719,693)  
Property, plant and equipment, net 11,899,650 12,653,856  
Depreciation expense 1,264,326 1,267,813 1,482,591
Land
     
Property, plant, and equipment      
Property, plant and equipment, gross 261,893 261,893  
Buildings and building improvements
     
Property, plant, and equipment      
Property, plant and equipment, gross 11,354,210 11,121,552  
Production equipment
     
Property, plant, and equipment      
Property, plant and equipment, gross 15,612,807 15,550,226  
Office furniture and equipment
     
Property, plant, and equipment      
Property, plant and equipment, gross 2,821,179 2,341,747  
Construction in progress
     
Property, plant, and equipment      
Property, plant and equipment, gross 731,258 995,810  
Automobiles
     
Property, plant, and equipment      
Property, plant and equipment, gross $ 102,321 $ 102,321