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Summary of Significant Accounting Policies - Summary of Disaggregated Amounts of Operating Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Summary Of Significant Accounting Policies [Line Items] |  |  |
Segment research and development |  | $ (14,478) | $ (15,859)
Segment general and administrative |  | (9,726) | (22,216)
Adjustments and reconciling items |  | 0 | 0
Consolidated operating loss |  | (24,204) | (38,075)
Operating Segments [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Segment research and development | [1],[2] | (13,607) | (13,380)
Segment general and administrative | [1] | (8,226) | (12,598)
Stock-based compensation |  | (2,313) | (12,039)
Depreciation expense |  | (58) | (58)
Consolidated operating loss |  | $ (24,204) | $ (38,075)
[1] | Depreciation expense of $31,000 and $29,000, related to research and development and $28,000 and $28,000, related general and administration have been excluded for the years ended December 31, 2024 and 2023, respectively.
[2] | Stock-based compensation expense of $840,000 and $2,449,000, related to research and development and $1,473,000 and $9,590,000, related to general and administration have been excluded for the years ended December 31, 2024 and 2023, respectively.

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