Segment Reporting - Summary of Financial Information for Segment (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
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| External costs by program | ||
| Research and development | $ 1,545 | $ 12,180 |
| General and administrative | 5,208 | 5,449 |
| Total operating expenses | 7,365 | 17,629 |
| Loss from operations | (7,365) | (17,629) |
| Interest income | 609 | 1,420 |
| Net loss | (5,756) | (16,556) |
| Reportable Segment | ||
| Internal costs | ||
| Total salary / benefits | 1,896 | 5,394 |
| External costs by program | ||
| General and administrative | 3,943 | 2,430 |
| Other segment items | 819 | 3,030 |
| Total operating expenses | 7,365 | 17,629 |
| Loss from operations | (7,365) | (17,629) |
| Interest income | 609 | 1,420 |
| Gain on sale of nonfinancial asset | 1,000 | 0 |
| Interest expense | 0 | (347) |
| Net loss | (5,756) | (16,556) |
| Reportable Segment | Zetomipzomib | ||
| External costs by program | ||
| Research and development | 698 | 6,091 |
| Reportable Segment | KZR-261 | ||
| External costs by program | ||
| Research and development | $ 9 | $ 684 |
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- Definition External Costs by Program No definition available.
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- Definition Internal Costs No definition available.
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- Definition Amount of gain (loss) on sale or disposal of other assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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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 Amount of interest expense classified as operating and nonoperating. Includes, but is not limited to, cost of borrowing accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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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 Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. 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 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/disclosureRef
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