Intangible Assets - Intangible Assets Outstanding (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Intangible assets
Gross carrying amount	$ 7,500	$ 7,500
Accumulated Amortization	(625)	(250)
Intangible assets, net	6,875	7,250
Product distribution rights
Intangible assets
Gross carrying amount	7,500	7,500
Accumulated Amortization	(625)	(250)
Intangible assets, net	$ 6,875	$ 7,250

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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