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Supplemental Balance Sheet Disclosures - Inventory (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Dec. 31, 2021
Inventory |  |
Raw materials | $ 300 | $ 171
Work-in-process | 318 | 528
Finished goods | 48 | 32
Inventory | 666 | 731
Inventory reserve | (57) | (255)
Total inventory, net of reserve | 609 | $ 476
Inventory markdowns to net realizable value | (37) |
Inventory reserves charged against work-in-process inventory | $ 161 |

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