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Supplemental Financial Information (Details) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Inventories: |  |
Raw materials | $ 103 | $ 0
Work-in-progress | 83 | 100
Finished goods | 399 | 281
Inventory | 585 | 381
Property, Plant and Equipment [Line Items] |  |
Total property and equipment | 3,789 | 6,525
Less: Accumulated depreciation and amortization | (1,835) | (4,538)
Net property and equipment | 1,954 | 1,987
Accrued Liabilities [Abstract] |  |
Accrued research and development services current | 3,857 | 3,705
Employee-related Liabilities, Current | 9,171 | 9,591
Operating Lease, Liability, Current | 1,291 | 1,291
Other Accrued Liabilities, Current | 1,337 | 2,570
Accrued Liabilities, Total | 15,656 | 17,157
Computers and software |  |
Property, Plant and Equipment [Line Items] |  |
Total property and equipment | $ 1,222 | 2,408
Computers and software | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 3 years |
Computers and software | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 5 years |
Furniture and fixtures |  |
Property, Plant and Equipment [Line Items] |  |
Total property and equipment | $ 389 | 1,939
Furniture and fixtures | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 5 years |
Furniture and fixtures | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 7 years |
Leasehold improvements |  |
Property, Plant and Equipment [Line Items] |  |
Total property and equipment | $ 2,178 | $ 2,178
Leasehold improvements | Minimum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 3 years |
Leasehold improvements | Maximum |  |
Property, Plant and Equipment [Line Items] |  |
Estimated Useful Lives | 7 years |

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