Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 1,824	$ 5,195
Europe [Member]
Revenues	1,715	1,005
Canada [Member]
Revenues	109	399
U.S.[Member]
Revenues	0	3,760
Other foreign countries [Member]
Revenues	$ 0	$ 31