Condensed consolidated statements of operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenue	$ 3,860	$ 6,130	$ 8,020	$ 11,125
Costs and operating expenses:
Research and development	2,965	2,337	6,490	4,485
Sales and marketing	3,484	3,122	6,940	5,397
General and administrative	6,404	3,625	12,498	6,827
Total costs and operating expenses	17,934	16,992	37,093	31,678
Loss from operations	(14,074)	(10,862)	(29,073)	(20,553)
Other income (expense):
Interest expense	(10)	(924)	(21)	(1,856)
Change in fair value of preferred stock warrant liability		(35)		(11,483)
Other income (expense), net	381	8	484	(3)
Total other income (expense), net	371	(951)	463	(13,342)
Loss before income taxes	(13,703)	(11,813)	(28,610)	(33,895)
Income tax (benefit) expense	(613)	18	(590)	37
Net loss	(13,090)	(11,831)	(28,020)	(33,932)
Accretion of redeemable convertible preferred stock to redemption value		(1,184)		(1,971)
Cumulative redeemable convertible preferred stock dividends		(885)		(2,296)
Net loss attributable to common stockholders - basic	(13,090)	(13,900)	(28,020)	(38,199)
Net loss attributable to common stockholders - diluted	$ (13,090)	$ (13,900)	$ (28,020)	$ (38,199)
Net loss per share attributable to common stockholders - basic	$ (0.31)	$ (20.01)	$ (0.66)	$ (57.17)
Net loss per share attributable to common stockholders - diluted	$ (0.31)	$ (20.01)	$ (0.66)	$ (57.17)
Weighted average common shares outstanding - basic	42,494,055	694,698	42,346,607	668,180
Weighted average common shares outstanding - diluted	42,494,055	694,698	42,346,607	668,180
Product revenue
Revenue:
Total revenue	$ 2,440	$ 4,088	$ 5,003	$ 7,806
Costs and operating expenses:
Cost of revenue	3,235	6,092	7,593	11,602
Service revenue
Revenue:
Total revenue	1,420	1,606	3,017	2,673
Costs and operating expenses:
Cost of revenue	$ 1,846	1,344	$ 3,572	2,481
Non-commercial revenue
Revenue:
Total revenue		436		646
Costs and operating expenses:
Cost of revenue		$ 472		$ 886