Summary of Significant Accounting Policies, Revenue from Contracts with Customers (Details) $ in Thousands	Dec. 31, 2018 USD ($)
ASU 2014-09 and ASU 2018-07 [Member]
Revenue from Contract with Customer [Abstract]
Cumulative effect adjustment of accumulated deficit	$ (2,832)

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.

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