Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Consolidated Statements of Operations and Comprehensive Loss
Revenue	$ 3,973	$ 2,212	$ 10,582	$ 5,847
Cost of revenue (excluding amortization of intangible assets)	1,293	769	4,045	3,224
Amortization of intangible assets	76	76	228	709
Gross profit	2,604	1,367	6,309	1,914
Operating expenses:
Sales and marketing	4,736	3,608	12,678	9,630
General and administrative	1,208	1,399	3,737	3,366
Research and development	516	1,044	3,230	3,362
Gain on litigation settlement		(2,160)		(2,160)
Total operating expenses	6,460	3,891	19,645	14,198
Loss from operations	(3,856)	(2,524)	(13,336)	(12,284)
Other (expense) income:
Interest expense	899	309	2,725	1,037
Loss on extinguishment of debt				(615)
Change in fair value of preferred stock warrant liability	34	17	(4)	191
Other income	55	10	172	44
Total other (expense) income	(810)	(282)	(2,557)	(1,417)
Net loss	(4,666)	(2,806)	(15,893)	(13,701)
Accretion of redeemable convertible preferred stock to redemption value	(2,058)	(1,871)	(6,843)	(6,848)
Net loss attributable to common stockholders	$ (6,724)	$ (4,677)	$ (22,736)	$ (20,549)
Net loss per common share, basic and diluted	$ (22.58)	$ (15.84)	$ (76.62)	$ (69.70)
Weighted average common shares outstanding, basic and diluted	297,750	295,228	296,743	294,823
Comprehensive loss:
Net loss	$ (4,666)	$ (2,806)	$ (15,893)	$ (13,701)
Foreign currency translation adjustment	1		(2)
Comprehensive loss	$ (4,665)	$ (2,806)	$ (15,895)	$ (13,701)