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Summary Of Significant Accounting Policies (Schedule Of Inventories) (Details) (USD $)
Jun. 30, 2012
Dec. 31, 2011
Summary Of Significant Accounting Policies [Abstract]    
Raw materials $ 55,000 $ 74,000
Work-in-process 4,000 12,000
Finished goods 246,000 235,000
Inventories $ 305,000 $ 321,000