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Leases - Narrative (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) facility | Jun. 30, 2022 USD ($)
Lessee, Lease, Description [Line Items] |  |  |  |
Non-cash lease expense | $ 36 | $ 76 | $ 82 | $ 215
Sublease income | 11 | 44 | 27 | 110
Operating lease, payments | $ 73 | $ 125 | $ 173 | $ 298
City of Industry, California |  |  |  |
Lessee, Lease, Description [Line Items] |  |  |  |
Number of facilities | facility |  |  | 1 |

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