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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Customer, Supplier and Product Concentration - Additional Information (Details) - customer	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Risks and Uncertainties [Abstract]
Number of customers considered as concentration risks	3	3	3,000	3,000
Net Sales \| Product Concentration Risk \| Ephedrine Sulfate Injection
Concentration Risk [Line Items]
Concentration risk percentage				11.00%
Prescription Pharmaceuticals \| Net Sales \| Segment Concentration Risk
Concentration Risk [Line Items]
Concentration risk percentage	89.60%	92.40%	89.70%	92.70%