XML 44 R33.htm IDEA: XBRL DOCUMENT v3.23.1
Convertible Preferred Stock, Common Stock and Stockholders' Deficit - Additional Information (Details) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 20, 2023
Oct. 31, 2022
Jul. 31, 2021
Jun. 30, 2021
Mar. 31, 2021
Feb. 28, 2021
Nov. 30, 2020
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Mar. 17, 2023
Temporary Equity [Line Items]                      
Common stock, shares authorized               500,000,000   5,694,626  
Preferred stock, shares authorized               10,000,000   0  
Common stock, shares issued               5,661,933   84,165  
Fair value of warrant liability               $ (1,146,000) $ (581,000)    
Common stock par value               $ 0.0001   $ 0.0001  
Fair value of warrants               $ 796,000 $ 581,000    
Expected term (years)               6 years 3 months      
Risk free interest rate               3.56%      
Expected volatility               75.00% 88.00%    
Expected dividend yield               0.00% 0.00%    
General and administrative               $ 15,849,000 $ 1,286,000    
Preferred stock, par value               $ 0.0001   $ 0.0001  
Private Placement                      
Temporary Equity [Line Items]                      
Stock issued               20,700,000      
Proceeds from private placement               $ 10,300,000      
Amended and Restated Certificate of Incorporation                      
Temporary Equity [Line Items]                      
Common stock, shares authorized               500,000,000      
Preferred stock, shares authorized               10,000,000      
Common stock par value               $ 0.0001      
Preferred stock, par value               $ 0.0001      
Chief Financial Officer                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share             $ 0.19        
Stock and warrants issued during period shares common stock and warrants             400,000        
Warrant liability fair value             $ 120,000        
Expected term (years)             10 years        
Risk free interest rate             0.96%        
Expected volatility             80.00%        
Expected dividend yield             0.00%        
General and administrative               $ 13,000 $ 15,000    
Vesting period             24 months        
Warrant term             10 years        
Officers and Directors                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share   $ 10.42                  
Stock and warrants issued during period shares common stock and warrants   496,970                  
Warrant liability fair value   $ 125,000                  
Expected term (years)   10 years                  
Risk free interest rate   4.10%                  
Expected volatility   82.00%                  
Expected dividend yield   0.00%                  
General and administrative               $ 14,000      
Warrant term   10 years                  
Graybug                      
Temporary Equity [Line Items]                      
Common stock par value               $ 0.0001     $ 0.0001
Maximum                      
Temporary Equity [Line Items]                      
Expected term (years)                 6 years 29 days    
Risk free interest rate                 1.76%    
Maximum | Officers and Directors                      
Temporary Equity [Line Items]                      
Vesting period   48 months                  
Minimum                      
Temporary Equity [Line Items]                      
Expected term (years)                 5 years 6 months    
Risk free interest rate                 1.62%    
Minimum | Officers and Directors                      
Temporary Equity [Line Items]                      
Vesting period   12 months                  
Common Stock                      
Temporary Equity [Line Items]                      
Common stock, shares issued 1,571,433                    
Conversion of preferred stock to common stock as a result of the Merger, shares               2,442,852      
Series C-2 Preferred                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share               $ 0.77      
Series C-2 Preferred | IPO [Member]                      
Temporary Equity [Line Items]                      
Stock issued               2,786,567      
Series D Convertible Preferred Stock                      
Temporary Equity [Line Items]                      
Preferred stock, shares authorized               0   88,875,077  
Convertible preferred stock, shares issued     745,804 12,911,742 5,069,660            
Convertible preferred stock, price per share     $ 0.8045 $ 0.8045 $ 0.8045 $ 0.8045          
Gross proceeds from issue of convertible preferred stock     $ 600,000 $ 10,400,000 $ 4,100,000 $ 6,600,000          
Preferred stock, par value               $ 0.001   $ 0.001  
Series D Convertible Preferred Stock | Maximum                      
Temporary Equity [Line Items]                      
Convertible preferred stock, shares issued           8,152,834          
Calcimedica Preferred Stock                      
Temporary Equity [Line Items]                      
Conversion of stock, shares converted 84,820,880                    
Calcimedica Common Stock                      
Temporary Equity [Line Items]                      
Conversion of preferred stock to common stock as a result of the Merger, shares 2,442,852                    
Series B Warrants                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share               $ 0.77      
Warrants issued               568,181      
Fair value of warrant liability               $ 21,000      
Warrant liability fair value                   $ 0  
Warrant term               10 years      
Series C-2 Warrants                      
Temporary Equity [Line Items]                      
Number of warrants converted to common stock               80,254      
Fair value of warrant liability               $ 400,000   900,000  
Warrants exercisable               2,786,567      
Warrant term               10 years      
Series D Warrants                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share           $ 0.8045   $ 0.8045      
Warrants issued               8,063,998      
Fair value of warrant liability                   $ 600,000  
Fair value of warrants           $ 1,800,000          
Warrant term               5 years      
Pre Merger CalciMedica | Private Placement                      
Temporary Equity [Line Items]                      
Conversion of stock, shares converted 20,706,997                    
Post Merger CalciMedica | Private Placement                      
Temporary Equity [Line Items]                      
Conversion of Stock, Shares Issued 596,363                    
Prior to Merger Transaction | Series B Warrants                      
Temporary Equity [Line Items]                      
Number of warrants converted to common stock               568,181      
Prior to Merger Transaction | Series D Warrants                      
Temporary Equity [Line Items]                      
Number of warrants converted to common stock               8,063,998      
Post Merger Transaction | Chief Financial Officer                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share               $ 6.60      
Number of warrants converted to common stock             11,520        
Post Merger Transaction | Officers and Directors                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share   $ 10.42                  
Number of warrants converted to common stock   14,313                  
Post Merger Transaction | Series B Warrants                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share               $ 26.74      
Number of warrants converted to common stock               16,366      
Post Merger Transaction | Series D Warrants                      
Temporary Equity [Line Items]                      
Exercise price of warrants per share               $ 27.94      
Number of warrants converted to common stock               232,256      
Fair value of warrant liability               $ 200,000