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Inventories (Details) (USD $)
Jun. 30, 2014
Dec. 31, 2013
Components of Inventories [Abstract]    
Raw Materials $ 7,035,000 $ 7,200,000
Work-in-process 3,862,000 4,313,000
Finished goods 291,000 290,000
TOTAL $ 11,188,000 $ 11,803,000