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Concentrations
9 Months Ended
Sep. 30, 2014
Concentrations  
8 - Concentrations

During the three months ended September 30, 2014, two vendors represented 76% and 12% of total inventory purchases, and 68% and 14% of total inventory purchases for the nine months ended September 30, 2014.  During the three months ended September 30, 2013, two vendors represented 63% and 12% of total inventory purchases, and 60% and 15% of total inventory purchases for the nine months ended September 30, 2013.  One vendor represented 30% and 24% of the accounts payable balance as of September 30, 2014 and 2013, respectively.