CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue	$ 59,796	$ 47,268	$ 112,940	$ 92,516
Cost of revenue	28,294	22,491	52,659	45,758
Gross profit	31,502	24,777	60,281	46,758
Operating expenses:
Research and development	18,369	15,900	36,358	29,691
Sales and marketing	9,614	8,196	18,913	15,841
General and administrative	11,995	8,998	22,801	17,152
Restructuring costs				1,263
Total operating expenses	39,978	33,094	78,072	63,947
Loss from operations	(8,476)	(8,317)	(17,791)	(17,189)
Other income (expense), net	429	(4)	593	19
Induced conversion on 2019 Notes	(2,232)		(2,232)
Interest expense	(1,250)	(525)	(2,511)	(1,050)
Loss before income taxes	(11,529)	(8,846)	(21,941)	(18,220)
Income tax expense	6	(60)	(43)	(102)
Net loss	$ (11,523)	$ (8,906)	$ (21,984)	$ (18,322)
Net loss per share basic	$ (0.45)	$ (0.37)	$ (0.87)	$ (0.77)
Net loss per share diluted	$ (0.45)	$ (0.37)	$ (0.87)	$ (0.77)
Weighted-average shares outstanding basic	25,429	24,120	25,204	23,895
Weighted-average shares outstanding diluted	25,429	24,120	25,204	23,895