Segment Information (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 3,140	$ 3,327
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	3	3
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	5	6
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 3,132	$ 3,318