Business Segment and Geographic Data (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net revenues		$ 11,243	$ 3,539	$ 22,476
North America [Member]
Net revenues		6,806	2,475	14,119
Asia Pacific [Member]
Net revenues		922		1,436
Europe (including Israel) [Member]
Net revenues		3,510	1,064	6,901
South America [Member]
Net revenues		5		20
United States [Member]
Net revenues		5,783	2,475	11,877
Canada [Member]
Net revenues		$ 534		$ 1,229