Condensed Consolidated Statements Of Operations - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Revenue:
Revenue		$ 1,220	$ 803
Cost of revenue:
Cost of revenue		800	694
Gross profit		420	109
Operating expenses:
Research and development	[1]	395	209
Sales and marketing	[1]	2,115	2,364
General and administrative	[1]	1,710	1,255
Total operating expenses		4,220	3,828
Loss from operations		(3,800)	(3,719)
Interest income, net		8	7
Other income (expense), net		86	(4)
Net loss		$ (3,706)	$ (3,716)
Net loss per share - basic and diluted		$ (0.04)	$ (0.05)
Weighted average common shares used to compute basic and diluted net loss per common share		97,287,461	75,507,532
Product [Member]
Revenue:
Revenue		$ 1,210	$ 779
Cost of revenue:
Cost of revenue	[1]	795	516
Service [Member]
Revenue:
Revenue		10	24
Cost of revenue:
Cost of revenue	[1]	$ 5	$ 178

[1] Non-cash stock-based compensation expense included in cost of revenue and operating expenses