Revenues, Recognition and Allowances (Details 1) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Company product sales, net	$ 16,375	$ 9,436	$ 44,288	$ 37,556
Research and development services and other income	41	21	174	172
Revenue, net	18,294	11,340	49,088	45,435
Company product sales
Disaggregation of Revenue [Line Items]
Company product sales, net	16,375	9,436	44,288	37,556
Topical
Disaggregation of Revenue [Line Items]
Company product sales, net	10,503	5,913	26,297	22,066
Injectables
Disaggregation of Revenue [Line Items]
Company product sales, net	5,872	3,523	17,991	15,490
Contract manufacturing sales
Disaggregation of Revenue [Line Items]
Company product sales, net	$ 1,878	$ 1,883	$ 4,626	$ 7,707

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- Definition

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.

+ References

No definition available.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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