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PROPERTY, PLANT AND EQUIPMENT
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment Disclosure [Text Block]
3. PROPERTY, PLANT AND EQUIPMENT

 

Property, plant and equipment consisted of the following, at cost:

 

    As of December 31,  
    2012     2011  
Laboratory and manufacturing equipment   $ 3,029,559     $ 2,978,716  
Building and improvements     2,785,698       2,667,220  
Office furniture and equipment     312,979       252,737  
Construction in progress           1,331  
Land     50,000       50,000  
Property, plant and equipment, gross     6,178,236       5,950,004  
Less: accumulated depreciation     3,820,627       3,434,673  
Property, plant and equipment, net   $ 2,357,609     $ 2,515,331