Goodwill and Intangible Assets (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Roll Forward]
Goodwill beginning balance	$ 471	[1]
Foreign currency translation	(26)
Goodwill ending balance	$ 445

[1] Derived from the audited December 31, 2017 financial statement