Summary of Significant Accounting Policies (Details) - Accounting Standard Update 2016 09 $ in Thousands	Dec. 31, 2016 USD ($)
Additional Paid-in Capital
Adoption of ASU 2016-09 (see Note 1)	$ 401
Accumulated Deficit
Adoption of ASU 2016-09 (see Note 1)	$ (401)

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant