Segment Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Mar. 31, 2025 |
Jun. 30, 2024 |
Mar. 31, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Segment Information | ||||||
| Revenue | $ 0 | $ 0 | $ 10,000 | $ 0 | ||
| Research and development expenses | 43,027 | 33,807 | 77,942 | 56,452 | ||
| General and administrative | 12,136 | 5,895 | 24,551 | 10,828 | ||
| Stock-based compensation | 6,045 | 1,536 | 11,431 | 2,483 | ||
| Net loss to common stockholders | (52,223) | $ (33,573) | (37,977) | $ (27,800) | (85,796) | (65,777) |
| Single Reportable Segment | ||||||
| Segment Information | ||||||
| Revenue | 10,000 | |||||
| General and administrative | 8,204 | 5,070 | 16,814 | 9,466 | ||
| Stock-based compensation | 6,045 | 1,536 | 11,431 | 2,483 | ||
| Other segment items | (2,940) | (1,725) | (6,697) | (1,503) | ||
| Net loss to common stockholders | $ (52,223) | $ (37,977) | $ (85,796) | $ (65,777) | ||
| Other segment items, description | Other segment items consist of other income (expense), net and income tax benefit (provision). Other income (expense), net consists of interest income and realized and unrealized gains and losses on foreign currency transactions | Other segment items consist of other income (expense), net and income tax benefit (provision). Other income (expense), net consists of interest income and realized and unrealized gains and losses on foreign currency transactions | Other segment items consist of other income (expense), net and income tax benefit (provision). Other income (expense), net consists of interest income and realized and unrealized gains and losses on foreign currency transactions | Other segment items consist of other income (expense), net and income tax benefit (provision). Other income (expense), net consists of interest income and realized and unrealized gains and losses on foreign currency transactions | ||
| Single Reportable Segment | Obexelimab | ||||||
| Segment Information | ||||||
| Research and development expenses | $ 29,894 | $ 22,788 | $ 53,254 | $ 35,082 | ||
| Single Reportable Segment | Other programs (ZB002 & ZB004) | ||||||
| Segment Information | ||||||
| Research and development expenses | 400 | 572 | 736 | 1,466 | ||
| Single Reportable Segment | Partnered regional programs (ZB001 & ZB005) | ||||||
| Segment Information | ||||||
| Research and development expenses | (137) | 2,435 | (37) | 4,023 | ||
| Single Reportable Segment | Unallocated | ||||||
| Segment Information | ||||||
| Research and development expenses | $ 10,757 | $ 7,301 | $ 20,295 | $ 14,760 | ||
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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/exampleRef
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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/exampleRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Description of composition of other segment item not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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. No definition available.
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