Leases - Additional Information (Details) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 27, 2021 ft²	Nov. 30, 2016 ft²	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 03, 2020 USD ($)
Leases [Line Items]
Cash payments for operating leases			$ 25	$ 53	$ 35	$ 123
Cash payments for financing leases			$ 15	$ 3	$ 18	$ 6
Austin, Texas
Leases [Line Items]
Leased premises | ft²		5,219
Lease, expiration date		Dec. 31, 2023
Decrease in operating lease right-of-use asset							$ 539
Decrease in operating lease liability							$ 506
Austin, Texas | Research and Development Facility
Leases [Line Items]
Leased premises | ft²	5,960
Lease term	36 months
Lease Commencement Date	Jun. 01, 2021