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CONCENTRATION OF CREDIT RISK
12 Months Ended
Dec. 31, 2012
Risks and Uncertainties [Abstract]  
CONCENTRATION OF CREDIT RISK
13. CONCENTRATION OF CREDIT RISK

Revenue from one customer represented approximately 84% of total revenue during 2012, 79% in 2011 and 79% in 2010. Revenue from another customer represented approximately 16% of total revenue during 2012, 21% in 2011, and 21% in 2010.