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Restructuring	12 Months Ended
	Dec. 31, 2018
Restructuring and Related Activities [Abstract]
Restructuring	Restructuring In March 2016, the Company commenced implementation of a reorganization of its operations intended to improve efficiency and better align the Company’s costs and employment structure with its strategic plans. The Company completed its reorganization in June 2016 and recorded a one-time charge of $2.5 million for the year ended December 31, 2016. The total $2.5 million in one-time charges is related to work-force reduction, recorded in research and development and selling, general and administrative expenses in the accompanying statement of operations. All restructuring payments were made prior to December 31, 2017 and as such, the balance of accrued restructuring expenses was $0 as of December 31, 2017 and December 31, 2018, respectively.

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- Definition

The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-URI http://asc.fasb.org/topic&trid=2175745

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