CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues, net	$ 5,613	$ 7,480	$ 16,373	$ 22,688
Cost of revenues	2,383	2,855	6,780	8,544
Gross profit	3,230	4,625	9,593	14,144
Operating expenses:
Engineering and product development	411	249	950	788
Selling and marketing	2,051	2,887	6,446	8,911
General and administrative	1,929	2,218	5,921	7,398
Total operating expenses	4,391	5,354	13,317	17,097
Loss from operations	(1,161)	(729)	(3,724)	(2,953)
Other expense, net:
Interest expense, net	(21)	(153)	(38)	(433)
Other (expense) income, net	(21)	(153)	(38)	(433)
Loss before income taxes	(1,182)	(882)	(3,762)	(3,386)
Income tax (expense) benefit	(72)	22	(207)	111
Net loss	$ (1,254)	$ (860)	$ (3,969)	$ (3,275)
Loss per common share:
Basic (in dollars per share)	$ (0.04)	$ (0.03)	$ (0.12)	$ (0.10)
Diluted (in dollars per share)	$ (0.04)	$ (0.03)	$ (0.12)	$ (0.10)
Shares used in computing loss per common share:
Basic (in shares)	33,754,909	32,903,287	33,551,070	31,663,355
Diluted (in shares)	33,754,909	32,903,287	33,551,070	31,663,355
Loss per Series C Convertible Preferred share basic and diluted (in dollars per share)	$ 0	$ (9.58)	$ (43.73)	$ (36.14)
Shares used in computing loss per basic and diluted Series C Convertible Preferred shares (in shares)	0	2,103	491	5,412
Series C Convertible Preferred Shares [Member]
Other expense, net:
Loss attributable to each class	$ 0	$ (20)	$ (22)	$ (196)
Common Shares [Member]
Other expense, net:
Net loss	0	0
Loss attributable to each class	$ (1,254)	$ (840)	$ (3,947)	$ (3,079)