Customers and Vendors

12 Months Ended

Dec. 31, 2012

Concentration Risks, Types, No Concentration Percentage [Abstract]

Customers and Vendors

12. CUSTOMERS AND VENDORS

Major Customers. During 2012, our top five customers accounted for 35% of our service revenue and no single customer accounted for more than 10% of service revenue.

Major Vendors. During 2012, our top five vendors accounted for 88% of our purchases and no single vendor accounted for more than 50% of purchases.