CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenues, net	$ 23,090	$ 31,586
Cost of revenues	8,956	11,316
Gross profit	14,134	20,270
Operating expenses:
Engineering and product development	1,274	1,002
Selling and marketing	9,038	12,003
General and administrative	7,898	10,275
Total operating expenses	18,210	23,280
Loss from operations	(4,076)	(3,010)
Other (expense) income, net:
Interest expense, net	(61)	(515)
Loss on extinguishment of debt	0	(414)
Other (expense) income, net	(61)	(929)
Income (loss) before income taxes	(4,137)	(3,939)
Income tax (expense) benefit	(275)	149
Net loss	$ (4,412)	$ (3,790)
Loss per common share:
Basic (in dollars per share)	$ (0.13)	$ (0.11)
Diluted (in dollars per share)	$ (0.13)	$ (0.11)
Shares used in computing loss per common share:
Basic (in shares)	33,609,922	31,978,665
Diluted (in shares)	33,609,922	31,978,665
Loss per Series C Convertible Preferred share basic and diluted (in dollars per share)	$ (48.59)	$ (42.24)
Shares used in computing loss per basic and diluted Series C Convertible Preferred shares (in shares)	368	4,577
Series C Convertible Preferred Shares [Member]
Other (expense) income, net:
Loss attributable to each class	$ (18)	$ (193)
Common Shares [Member]
Other (expense) income, net:
Net loss	0	0
Loss attributable to each class	$ (4,394)	$ (3,597)