Segment Reporting - Summary of the Segment Loss including Significant Segment Expenses (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||||||||||||||||||||
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Sep. 30, 2026 |
Jun. 30, 2026 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
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| Segment Reporting [Line Items] | ||||||||||||||||||||||
| Research and development costs | [1] | $ 42,139 | $ 20,479 | $ 69,130 | $ 20,732 | |||||||||||||||||
| Net loss | (46,425,000) | $ (17,360,000) | $ (13,510,000) | (21,723,000) | $ (152,000) | $ (73,000) | (77,295,000) | (21,948,000) | ||||||||||||||
| Single Reportable Segment | ||||||||||||||||||||||
| Segment Reporting [Line Items] | ||||||||||||||||||||||
| AB program research and development costs | [2] | 16,311,000 | 20,014,000 | 32,643,000 | 20,202,000 | |||||||||||||||||
| Undisclosed programs research and development costs | [3] | 9,142,000 | 0 | 15,038,000 | 0 | |||||||||||||||||
| General and administrative personnel costs (including stock-based compensation) | 3,732,000 | 117,000 | 7,279,000 | 117,000 | ||||||||||||||||||
| Research and development personnel costs (including stock-based compensation) | [4] | 3,241,000 | 204,000 | 6,401,000 | 240,000 | |||||||||||||||||
| Parasa warrant stock-based compensation | [5] | 12,664,000 | 199,000 | 13,508,000 | 199,000 | |||||||||||||||||
| Other general and administrative costs | [6] | 2,403,000 | 1,361,000 | 5,076,000 | 1,473,000 | |||||||||||||||||
| Other research and development costs | [7] | 781,000 | 62,000 | 1,540,000 | 91,000 | |||||||||||||||||
| Interest income | (1,849,000) | (234,000) | (4,190,000) | (374,000) | ||||||||||||||||||
| Net loss | $ 46,425,000 | $ 21,723,000 | $ 77,295,000 | $ 21,948,000 | ||||||||||||||||||
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- Definition Aβ program research and development costs. No definition available.
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- Definition General and administrative personnel costs (including stock-based compensation). No definition available.
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- Definition Parasa warrant stock-based compensation. No definition available.
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- Definition Research and development personnel costs (including stock-based compensation). No definition available.
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- Definition Undisclosed programs research and development costs. No definition available.
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- Definition Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of general and administrative expense classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of other research and development expense. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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