Condensed Consolidated Statements of Net Loss and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 9,744	$ 4,992	$ 17,552	$ 10,019
Cost of sales	5,567	2,284	9,479	4,563
Gross margin	4,177	2,708	8,073	5,456
Research and development expenses	639	1,040	1,614	1,701
Sales and marketing expenses	3,305	1,515	5,568	2,443
General and administrative expenses	5,622	2,434	9,990	3,966
Stock-based compensation expense	5,601	35	5,632	69
Operating loss	(10,990)	(2,316)	(14,731)	(2,723)
Foreign exchange loss (gain), net	1,359	(361)	2,504	(580)
Interest income, net	497	500	913	996
Other income (expense), net	(76)	(20)	(197)	(6)
Loss before income taxes	(12,770)	(2,435)	(17,951)	(3,133)
Income tax expense	(63)	0	(63)	0
Net loss	$ (12,833)	$ (2,435)	$ (18,014)	$ (3,133)
Basic and diluted net loss per share	$ (0.17)	$ (0.01)	$ (0.24)	$ (0.01)
Shares used in compilation of net loss per share, basic and diluted	75,000,000	75,000,000	75,000,000	75,000,000
Net loss	$ (12,833)	$ (2,435)	$ (18,014)	$ (3,133)
Foreign currency translation gain (loss)	86	(208)	87	(240)
Comprehensive loss	$ (12,747)	$ (2,643)	$ (17,927)	$ (3,373)