CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues, net	$ 4,030	$ 7,725	$ 10,760	$ 15,208
Cost of revenues	2,066	2,815	4,397	5,689
Gross profit	1,964	4,910	6,363	9,519
Operating expenses:
Engineering and product development	247	235	539	539
Selling and marketing	1,442	2,958	4,395	6,024
General and administrative	1,890	2,700	3,992	5,180
Total operating expenses	3,579	5,893	8,926	11,743
Loss from operations	(1,615)	(983)	(2,563)	(2,224)
Other expense, net:
Interest expense, net	(18)	(145)	(17)	(280)
Other (expense) income, net	(18)	(145)	(17)	(280)
Loss before income taxes	(1,633)	(1,128)	(2,580)	(2,504)
Income tax (expense) benefit	(47)	46	(135)	89
Net loss	$ (1,680)	$ (1,082)	$ (2,715)	$ (2,415)
Loss per common share:
Basic (in dollars per share)	$ (0.05)	$ (0.03)	$ (0.08)	$ (0.07)
Diluted (in dollars per share)	$ (0.05)	$ (0.03)	$ (0.08)	$ (0.07)
Shares used in computing loss per common share:
Basic (in shares)	33,731,739	31,359,104	33,448,030	31,033,114
Diluted (in shares)	33,731,739	31,359,104	33,448,030	31,033,114
Loss per Series C Convertible Preferred share basic and diluted (in dollars per share)	$ 0	$ (11.94)	$ (29.93)	$ (26.66)
Shares used in computing loss per basic and diluted Series C Convertible Preferred shares (in shares)	0	6,250	740	7,093
Series C Convertible Preferred Shares [Member]
Other expense, net:
Loss attributable to each class	$ 0	$ (75)	$ (22)	$ (189)
Common Shares [Member]
Other expense, net:
Net loss	0	0
Loss attributable to each class	$ (1,680)	$ (1,007)	$ (2,693)	$ (2,226)