Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 1,269	$ 4,287
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	796	1,111
Israel [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	216	171
Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		422
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue		412
Canada [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	203	233
Germany [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	12	1,538
Other [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 42	$ 400