CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenues	$ 2,007	$ 817	$ 4,506	$ 2,878
Cost of revenues	1,266	732	2,716	2,300
Gross profit	741	85	1,790	578
Operating expenses:
Research and development, net	1,385	3,074	2,815	4,769
Sales and marketing	2,873	3,504	6,006	6,803
General and administrative	1,850	2,095	3,991	4,009
Total operating expenses	6,108	8,673	12,812	15,581
Operating loss	(5,367)	(8,588)	(11,022)	(15,003)
Loss on extinguishment of debt	313	0	313	0
Financial expenses, net	633	517	1,364	1,006
Loss before income taxes	(6,313)	(9,105)	(12,699)	(16,009)
Income taxes (tax benefit)	(4)	12	10	30
Net loss	$ (6,309)	$ (9,117)	$ (12,709)	$ (16,039)
Net loss per ordinary share, basic and diluted (in USD per share)	$ (0.37)	$ (0.74)	$ (0.75)	$ (1.30)
Weighted average number of shares used in computing net loss per ordinary share, basic and diluted (in shares)	17,218,154	12,403,541	16,837,903	12,363,698