Revenue - Summary of Deferred Revenue Activity (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022
Movement in Deferred Revenue [Roll Forward]
Balance at beginning of period		$ 17
Additions to deferred revenue		0
Recognized as revenue		(17)
Balance at end of period	$ 0	0
NIDA Grant
Movement in Deferred Revenue [Roll Forward]
Balance at beginning of period		17
Additions to deferred revenue		0
Recognized as revenue	0	(17)
Balance at end of period