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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 |  |  |  |  |  |

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