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Summary Of Significant Accounting Policies (Narrative) (Details) (USD $)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Summary Of Significant Accounting Policies [Abstract]      
Percentage of gross sales 35.00% 36.00%  
Percentage of accounts receivable 25.00% 30.00% 33.00%
Total advertising expenses $ 1,308,306 $ 1,320,326