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Major Customers and Other Risk Concentrations (Tables)
12 Months Ended
Dec. 31, 2012
Risks and Uncertainties [Abstract]  
Revenue and Accounts Receivable from Customers Representing Over Ten Percent of Revenue or Accounts Receivable

Revenue for the years ended December 31, 2012 and 2011, and accounts receivable from customers as of December 31, 2012 and 2011 representing over 10% of revenue or accounts receivable were as follows:

 

    Year Ending December 31,     December 31,  
    2012     2011     2012     2011  
    Revenue     Revenue     Accounts Receivable  
Company A     10.8 %     18.3 %     50.1 %     1.3 %
Company B     65.6 %     45.9 %     0.0 %     24.5 %