Concentrations of Credit and Other Risks

9 Months Ended

Sep. 30, 2013

Concentrations of Credit and Other Risks [Abstract]

Concentrations of Credit and Other Risks

(7) Concentrations of Credit and Other Risks

In the United States, the Company sells its products and services directly to hospitals and clinics.  In all international markets, the Company sells its products to distributors who, in turn, sell to hospitals and clinics.

With respect to accounts receivable, the Company performs credit evaluations of its customers and does not require collateral.  No single customer represented greater than 10% of gross accounts receivable as of either September 30, 2013 or December 31, 2012.  There have been no material losses on customer receivables.

Revenue by geographic destination as a percentage of total net revenue for the three and nine month periods ended September 30, 2013 and 2012 was 85% and 84% in the United States and 15% and 16% in international markets, respectively.  No single customer represented greater than 10% of the total net revenue for the three and nine months ended September 30, 2013 and 2012.