Concentration Risk
3 Months Ended
Mar. 31, 2013
Risks and Uncertainties [Abstract]  
Concentration Risk
Concentration Risk

For the three-month periods ended March 31, 2013 and 2012, one client accounted for 20% and 46% of total revenues, respectively.

At March 31, 2013, one client accounted for 11% of the outstanding accounts receivable balance and a separate client accounted for 10% of the outstanding accounting receivable balance. At December 31, 2012, one client accounted for 13% of the outstanding accounts receivable balance and a separate client accounted for 12% of the outstanding receivable balance.