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Consolidated Financial Statement Details (Tables) | 12 Months Ended
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Dec. 31, 2024
Inventory Disclosure [Abstract] |
Schedule of Inventory | Inventory Inventory consists of the following (in thousands):
|  | December 31, |
|  | 2024 |  |  | 2023 |
Raw materials |  | $ | — |  |  | $ | 1,861 |
Work-in-process |  |  | — |  |  |  | 12,880 |
Finished goods |  |  | — |  |  |  | 1,360 |
Total inventory |  | $ | — |  |  | $ | 16,101 |
Schedule of Other Current Assets | Other Current Assets Other current assets consists of the following (in thousands):
|  | December 31, |
|  | 2024 |  |  | 2023 |
Prepaid research and development expenses |  | $ | 1,947 |  |  | $ | 4,325 |
Interest and other non-trade receivables |  |  | 1,609 |  |  |  | 1,047 |
Other prepaid expenses |  |  | 2,510 |  |  |  | 4,407 |
Total other current assets |  | $ | 6,066 |  |  | $ | 9,779 |
Schedule of Property, Plant and Equipment | Property, Plant and Equipment Property, plant and equipment consists of the following (in thousands):
|  | December 31, |
|  | 2024 |  |  | 2023 |
Building and leasehold improvements |  | $ | 3,881 |  |  | $ | 43,184 |
Laboratory equipment |  |  | 552 |  |  |  | 14,537 |
Computer equipment and software |  |  | 14,616 |  |  |  | 22,438 |
Manufacturing equipment |  |  | — |  |  |  | 24,315 |
Furniture, fixtures, and other |  |  | 27 |  |  |  | 541 |
Depreciable property, plant and equipment at cost |  |  | 19,076 |  |  |  | 105,015 |
Less: accumulated depreciation |  |  | (15,910 | ) |  |  | (86,898 | )
Depreciable property, plant and equipment, net |  |  | 3,166 |  |  |  | 18,117 |
Construction-in-progress |  |  | 245 |  |  |  | 739 |
Property, plant and equipment, net |  | $ | 3,411 |  |  | $ | 18,856 |
We determined the loss as follows (in thousands):
|  | Year Ended December 31, |
|  | 2024 |  | 2023 |
Proceeds from sales |  | $ | — |  | $ | 1,245 |
Net book value of assets |  |  | — |  |  | 2,545 |
Total loss on sale of other property, plant and equipment, net |  | $ | — |  | $ | 1,300 |
Schedule of Goodwill | Goodwill The following is a reconciliation of the change in our goodwill for the year ended December 31, 2023 (in thousands):
|  | Year Ended December 31, 2023 |
Goodwill – beginning balance |  | $ | 76,501 |
Impairment of goodwill |  |  | (76,501 | )
Goodwill – ending balance |  | $ | — |
Schedule of Accred Expenses | Accrued Expenses Accrued expenses consist of the following (in thousands):
|  | December 31, |
|  | 2024 |  |  | 2023 |
Accrued compensation |  | $ | 2,832 |  |  | $ | 5,553 |
Accrued research and development expenses |  |  | 14,453 |  |  |  | 10,118 |
Accrued contract termination costs |  |  | 2,767 |  |  |  | 3,020 |
Other accrued expenses |  |  | 9,920 |  |  |  | 3,471 |
Total accrued expenses |  | $ | 29,972 |  |  | $ | 22,162 |
Schedule of Accumulated Other Comprehensive Income (Loss) | Accumulated Other Comprehensive Income (Loss) The following table summarizes the changes in accumulated other comprehensive income (loss) by component (in thousands):
|  | Foreign currency translation |  |  | Available-for-sale securities |  |  | Accumulated Other Comprehensive Income (Loss) |
Balance at December 31, 2022 |  | $ | (5,131 | ) |  | $ | (1,776 | ) |  | $ | (6,907 | )
Foreign currency translation gain (loss) |  |  | 62 |  |  |  | — |  |  |  | 62 |
Unrealized gain on available-for-sale securities |  |  | — |  |  |  | 1,826 |  |  |  | 1,826 |
Reclassification adjustments to income |  |  | 5,099 |  |  |  | — |  |  |  | 5,099 |
Balance at December 31, 2023 |  |  | 30 |  |  |  | 50 |  |  |  | 80 |
Foreign currency translation gain (loss) |  |  | (4 | ) |  |  | — |  |  |  | (4 | )
Unrealized gain on available-for-sale securities |  |  | — |  |  |  | (15 | ) |  |  | (15 | )
Balance at December 31, 2024 |  | $ | 26 |  |  | $ | 35 |  |  | $ | 61 |
The reclassification from accumulated other comprehensive loss relates to the closure of the operations of our foreign subsidiaries and has been included within other income (expense), net in our Consolidated Statement of Operations for the year ended December 31, 2023.

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