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Inventories (Details) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Classification of inventories [Abstract]    
Raw materials, net $ 1,854,000 $ 1,834,000
Work in process, net 1,657,000 1,490,000
Finished goods, net 1,040,000 1,305,000
Total Inventories, net 4,551,000 4,629,000
Inventory Reserve for Obsolescence $ 2,814,000 $ 2,586,000