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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Concentration risks, Revenue recognition, Litigation proceeds (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) customer	Sep. 30, 2016 USD ($) customer	Sep. 30, 2017 USD ($) customer item	Sep. 30, 2016 USD ($) customer	Dec. 31, 2016 USD ($)
Concentration risks
Number of significant customers | customer	3	2	2	1
Aggregate dollar amount of net sales to significant customers	$ 10,412,036	$ 8,840,134	$ 24,981,833	$ 22,337,169
Revenue recognition
Estimated contractual allowance	3,714,733		$ 3,714,733		$ 3,591,534
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	$ 3,500,000	$ 9,400,000	$ 7,100,000
Percentage of net sales to significant customers (as a percent)	49.10%	39.30%	37.50%	31.60%
Syringes | Supplier Concentration Risk
Concentration risks
Percentage of net sales to significant customers (as a percent)	93.00%	92.70%	90.40%	85.10%

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For an unclassified balance sheet, a valuation allowance for payables due by the company that are expected to be not payable.

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Represents the number of significant customers.

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Represents the maximum percentage of distributor's total purchase in prior 12-month period for overstock return.

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The number of overstock returns available to a customer within a specified period of time.

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The period of time specified for overstock returns.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

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-Name Accounting Standards Codification
-Topic 825
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-Section 50
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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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