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Summary of Significant Accounting Policies - Additional Information (Details)
 3 Months Ended
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Summary Of Significant Accounting Policies [Line Items]      
Stockholders equity note stock split exchange ratio 0.0288    
Depreciation expense $ 15,000 $ 13,000  
Lease term 12 months    
Right-of-use asset or lease liability $ 0    
Rent expense 30,000 65,000  
Impairment of long-lived assets 0 0  
General and administrative $ 2,823,000 15,849,000  
Tax postion, Minimum percentage of tax benefit 50.00%    
Variable interest entity ownership percentage 5.00%    
Private CalciMedica      
Summary Of Significant Accounting Policies [Line Items]      
Costs and expenses related party $ 100,000 $ 107,000  
ATM      
Summary Of Significant Accounting Policies [Line Items]      
Deferred Offering Costs $ 400,000   $ 400,000