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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2014 item | Mar. 31, 2013 item | Dec. 31, 2013
Concentration risks |  |  |
Number of significant customers | 3 | 1 |
Aggregate dollar amount of net sales to significant customers | $ 6,040,378 | $ 7,173,112 |
Revenue recognition |  |  |
Estimated contractual allowance | 3,167,259 |  | 3,611,692
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% |  |
Sales | Customer concentration risk |  |  |
Concentration risks |  |  |
Aggregate dollar amount of net sales to significant customers | $ 3,000,000 | $ 1,400,000 |
Concentration risk (as a percent) | 49.10% | 19.20% |
Product components | Supplier concentration risk |  |  |
Concentration risks |  |  |
Concentration risk (as a percent) | 53.30% | 70.80% |
Product components | Supplier concentration risk | Other Chinese manufacturers |  |  |
Concentration risks |  |  |
Concentration risk (as a percent) | 11.10% |  |

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