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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
customer
Jun. 30, 2011
customer
Jun. 30, 2012
customer
count
Jun. 30, 2011
customer
Concentration risks        
Number of significant customers 3 4 2 3
Concentration risk amount $ 8,727,905 $ 7,975,971 $ 16,157,889 $ 17,723,603
Revenue recognition        
Period for return of incorrect shipments     10 days  
Number of times overstocking returns are limited     2  
Period for return of product due to overstock     12 months  
Maximum percentage of distributor's total purchase for the prior 12-month period     1.00%  
Sales | Customer concentration risk
        
Concentration risks        
Concentration risk amount $ 3,900,000 $ 4,800,000 $ 4,900,000 $ 7,300,000
Concentration risk (as a percent) 45.20% 59.70% 30.00% 41.20%
Product components | Supplier concentration risk
        
Concentration risks        
Concentration risk (as a percent) 69.60% 75.40% 67.60% 71.90%