Condensed Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Total revenue	$ 350	$ 479
Total cost of revenue	4	(5)
Gross profit	346	484
Research and development expense	7,593	4,462
Sales, marketing, general and administrative expense	5,877	2,247
Total operating expenses	13,470	6,709
Loss from operations	(13,124)	(6,225)
Other expenses, net	(44)	(6)
Net loss	$ (13,168)	$ (6,231)