UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenue	$ 1,819	$ 1,588	$ 5,632	$ 5,039
Cost of revenue	690	652	2,048	2,050
Gross profit	1,129	936	3,584	2,989
Operating expenses:
Sales and marketing	3,782	885	10,123	1,880
Research and development	1,863	1,081	4,862	2,741
General and administrative	1,592	377	4,261	962
Operating loss	(6,108)	(1,407)	(15,662)	(2,594)
Interest and other income	19	0	87	8
Interest expense	(8)	(2)	(11)	(4)
Gain on the extinguishment of debt	0	0	635	0
Net loss	(6,097)	(1,409)	(14,951)	(2,590)
Preferred stock dividends accrued	0	(13)	0	(79)
Net loss attributable to common stockholders	$ (6,097)	$ (1,422)	$ (14,951)	$ (2,669)
Net loss per share attributable to common stockholders:
Basic	$ (0.34)	$ (0.10)	$ (0.85)	$ (0.19)
Diluted	$ (0.34)	$ (0.10)	$ (0.85)	$ (0.19)
Weighted average common shares outstanding:
Basic	17,909	14,450	17,692	13,981
Diluted	17,909	14,450	17,692	13,981