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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)
 3 Months Ended 9 Months Ended
Sep. 30, 2015
USD ($)
customer
Sep. 30, 2014
USD ($)
customer
Sep. 30, 2015
USD ($)
customer
item
Sep. 30, 2014
USD ($)
customer
Dec. 31, 2014
USD ($)
Concentration risks          
Number of significant customers | customer 2 3 2 2  
Aggregate dollar amount of net sales to significant customers $ 9,482,866 $ 10,886,680 $ 22,376,912 $ 23,803,420  
Revenue recognition          
Estimated contractual allowance 3,923,870   3,923,870   $ 4,160,099
Change to reserve regarding non-contractual rebates     $ 0    
Period for return of incorrect shipments     10 days    
Number of times overstocking returns are limited | item     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          
Aggregate dollar amount of net sales to significant customers $ 5,100,000 $ 6,000,000 $ 10,300,000 $ 9,000,000  
Percentage of net sales to significant customers (as a percent) 53.50% 55.00% 46.00% 37.60%  
Product components | Supplier Concentration Risk          
Concentration risks          
Percentage of net sales to significant customers (as a percent) 82.40% 78.30% 78.20% 70.80%