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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
 12 Months Ended
Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Concentration risks      
Number of significant customers 2 3 4
Aggregate dollar amount of net sales to significant customers $ 30,785,127 $ 33,644,503 $ 32,102,296
Increase in allowance for doubtful accounts 50,000 107,246 1,298,044
Revenue recognition      
Estimated contractual allowance 3,611,692 3,036,564  
Change to reserve regarding non-contractual rebates 0    
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%    
Customer concentration risk
      
Concentration risks      
Increase in allowance for doubtful accounts 50,000    
Sales | Customer concentration risk
      
Concentration risks      
Aggregate dollar amount of net sales to significant customers $ 9,300,000 $ 13,700,000 $ 16,200,000
Concentration risk (as a percent) 30.20% 40.60% 50.60%
Product components | Supplier concentration risk
      
Concentration risks      
Concentration risk (as a percent) 72.90% 72.00% 67.10%