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Summary of Significant Accounting Policies - Summary of Disaggregated Amounts of Operating Expenses (Parenthetical) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Summary Of Significant Accounting Policies [Line Items]        
Depreciation expense     $ 41,000 $ 44,000
Research and Development        
Summary Of Significant Accounting Policies [Line Items]        
Stock-based compensation $ 219,000 $ 273,000 777,000 634,000
Depreciation expense 5,000 8,000 19,000 24,000
General and Administrative        
Summary Of Significant Accounting Policies [Line Items]        
Stock-based compensation 407,000 508,000 1,572,000 1,047,000
Depreciation expense $ 6,000 $ 7,000 $ 22,000 $ 20,000