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Inventories (Schedule Of Inventories) (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Inventories [Abstract]    
Raw Materials $ 796,000 $ 791,000
Work in Process 223,000 247,000
Finished Goods 202,000 190,000
Total Inventories $ 1,221,000 $ 1,228,000