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Organization, Business, Basis of Presentation and Summary of Significant Accounting Policies - Summary of Significant Expense Categories Reviewed By CODM (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Research and development expenses: |  |
Efzofitimod expenses | $ 3,535 | $ 8,804
Preclinical development and other shared research and development expenses | 3,355 | 2,560
Non-cash expenses (depreciation and stock-based compensation) | 427 | 450
Total research and development expenses | 7,317 | 11,814
General and administrative expenses: |  |
Other general and administrative expenses | 3,076 | 3,064
Non-cash expenses (depreciation and stock-based compensation) | 1,043 | 895
Total general and administrative expenses | 4,119 | 3,959
Other segment items | 644 | 892
Consolidated net loss | $ (10,792) | $ (14,881)

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