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PROPERTY, PLANT AND EQUIPMENT (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Laboratory and manufacturing equipment $ 3,037,000 $ 2,979,000
Building and improvements 2,763,000 2,667,000
Office furniture and equipment 313,000 253,000
Construction in progress 0 1,000
Land 50,000 50,000
Property, plant and equipment, gross 6,163,000 5,950,000
Accumulated depreciation 3,645,000 3,435,000
Property, plant and equipment, net $ 2,518,216 $ 2,515,331