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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2025
Summary of Significant Accounting Policies [Abstract] |
Schedule of Accounts and Grants Receivable | Accounts and grants receivable by source, as of (in thousands):
|  | June 30, 2025 |  |  | December 31, 2024 |
Accounts receivable from customers |  | $ | 31 |  |  | $ | 25 |
National Institutes of Health – Grant |  |  | — |  |  |  | 59 |
Total |  | $ | 31 |  |  | $ | 84 |
Schedule of Revenue | Revenue by source (in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2025 |  |  | 2024 |  |  | 2025 |  |  | 2024 |
Clinical trial revenue |  | $ | 298 |  |  | $ | 287 |  |  | $ | 557 |  |  | $ | 802 |
Contract manufacturing lease revenue |  |  | 6 |  |  |  | 159 |  |  |  | 12 |  |  |  | 191 |
Contract manufacturing revenue |  |  | 12 |  |  |  | 22 |  |  |  | 128 |  |  |  | 23 |
Total |  | $ | 316 |  |  | $ | 468 |  |  | $ | 697 |  |  | $ | 1,016 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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