Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Consolidated Statements of Operations and Comprehensive Loss
Revenue	$ 5,313	$ 3,973	$ 12,546	$ 10,582
Cost of revenue (excluding amortization of intangible assets)	1,950	1,293	4,746	4,045
Amortization of intangible assets	76	76	228	228
Gross profit	3,287	2,604	7,572	6,309
Operating expenses:
Sales and marketing	6,342	4,736	15,734	12,678
General and administrative	2,607	1,208	7,274	3,737
Research and development	1,201	516	3,092	3,230
Total operating expenses	10,150	6,460	26,100	19,645
Loss from operations	(6,863)	(3,856)	(18,528)	(13,336)
Other (expense) income:
Interest expense	(898)	(899)	(2,661)	(2,725)
Change in fair value of preferred stock warrant liability		34		(4)
Other income	58	55	185	172
Total other (expense) income	(840)	(810)	(2,476)	(2,557)
Net loss	(7,703)	(4,666)	(21,004)	(15,893)
Accretion of redeemable convertible preferred stock to redemption value		(2,058)		(6,843)
Net loss attributable to common stockholders	$ (7,703)	$ (6,724)	$ (21,004)	$ (22,736)
Net loss per common share, basic and diluted	$ (0.53)	$ (22.58)	$ (1.69)	$ (76.62)
Weighted average common shares outstanding, basic and diluted	14,421,990	297,750	12,431,257	296,743
Comprehensive loss:
Net loss	$ (7,703)	$ (4,666)	$ (21,004)	$ (15,893)
Foreign currency translation adjustment	(29)	1	2	(2)
Comprehensive loss	$ (7,732)	$ (4,665)	$ (21,002)	$ (15,895)