Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 3,526	$ 3,878
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	3,324	3,389
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	185	478
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 17	$ 11