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Convertible Preferred Stock, Common Stock and Stockholders' Deficit - Additional Information (Details) - USD ($) |  |  |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Feb. 05, 2024 | Jan. 19, 2024 | Mar. 20, 2023 | Aug. 31, 2023 | Oct. 31, 2022 | Nov. 30, 2020 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized |  |  |  |  |  |  | 500,000,000 |  | 500,000,000
Preferred stock, shares authorized |  |  |  |  |  |  | 10,000,000 |  | 0
Available for sale under Shelf Registration Statement |  |  |  |  |  |  | $ 99,700,000 |  |
Net proceeds |  |  |  |  |  |  | $ 246,000 |  |
Common stock, shares issued |  |  |  |  |  |  | 10,740,115 |  | 5,754,505
Fair value of warrant liability |  |  |  |  |  |  | $ (5,590,000) | $ (1,146,000) |
Common stock par value |  |  |  |  |  |  | $ 0.0001 |  | $ 0.0001
Expected term (years) |  |  |  |  |  |  | 6 years 3 months | 6 years 3 months |
Risk free interest rate |  |  |  |  |  |  | 2.94% | 3.56% |
Expected volatility |  |  |  |  |  |  | 89.00% | 75.00% |
Expected dividend yield |  |  |  |  |  |  | 0.00% | 0.00% |
General and administrative |  |  |  |  |  |  | $ 2,823,000 | $ 15,849,000 |
Preferred stock, par value |  |  |  |  |  |  | $ 0.0001 |  | $ 0.0001
Conversion of stock description |  | Each Placement Agent Warrant was accompanied by one Tranche A Common Warrant to purchase one half of a share of common stock and one Tranche B Warrant to purchase one half of a share of common stock, for an aggregate of 75,746 Common Warrants. |  |  |  |  |  |  |
2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Gross proceeds from the private placement |  |  |  |  |  |  | $ 20,400,000 |  |
Stock issued |  |  |  |  |  |  | 20,700,000 |  |
Net proceeds |  |  |  |  |  |  | $ 10,300,000 |  |
2024 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  | $ 0.0001 |  |  |  |  | $ 3.827 |  |
Number of warrants converted to common stock | 7,839 | 67,908 |  |  |  |  |  |  |
Gross proceeds from the private placement | $ 20,400,000 |  |  |  |  |  |  |  |
Net proceeds from issuance of private placement | 19,000,000 |  |  |  |  |  |  |  |
Conversion of stock, shares converted |  | 75,746 |  |  |  |  |  |  |
Sale of stock, shares |  | 4,985,610 |  |  |  |  |  |  |
Commissions paid | $ 1,400,000 |  |  |  |  |  |  |  |
Shelf Registration Statement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Issuance and sale of equity |  |  |  | $ 100,000,000 |  |  |  |  |
ATM |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Commissions paid |  |  |  |  |  |  | $ 11,000 |  |
Remaining amount of available for sale |  |  |  |  |  |  | 17,100,000 |  |
Issuance and sale of equity |  |  |  |  |  |  | $ 17,300,000 |  |
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 |  |  |  |  |  |  | $ 0 | 13,000 |
Vesting period |  |  |  |  |  | 24 months |  |  |
Warrant term |  |  |  |  |  | 10 years |  |  |
Officers and Directors |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  | $ 2,000 | 14,000 |
Warrant term |  |  |  |  | 10 years |  |  |  |
Directors, Employees or Consultants | 2024 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 4.3915 |  |
Maximum | Officers and Directors |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  | 48 months |  |  |  |
Minimum | Officers and Directors |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Vesting period |  |  |  |  | 12 months |  |  |  |
Common Stock |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Stock issued |  |  |  |  |  |  | 92,572 |  |
Fair value of common stock |  | $ 8.5 |  |  |  |  |  |  |
Common stock, shares issued |  |  | 1,571,433 |  |  |  |  |  |
Common Warrants | 2024 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 3.827 |  |
Preferred Stock |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Fair value of warrant liability |  |  |  |  |  |  | $ 0 | $ 796,000 |
Pre Funded Warrants |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 0.0001 |  |
Warrant liability fair value |  |  |  |  |  |  | $ 500,000 |  |
Pre Funded Warrants | 2024 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 3.8269 |  |
Number of warrants converted to common stock |  | 306,506 |  |  |  |  |  |  |
Decrease in warrant exercise price |  |  |  |  |  |  | 0.0001 |  |
Placement Agent Warrants |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 0.0001 |  |
Warrant liability fair value |  |  |  |  |  |  | $ 100,000 |  |
Tranche A Common Warrants |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 5.36 |  |
Fair value of warrant liability |  |  |  |  |  |  | $ 2,700,000 |  |
Warrant liability fair value |  |  |  |  |  |  | 4,100,000 |  |
Fair value of warrants |  |  |  |  |  |  | $ 1,400,000 |  |
Expected term (years) |  |  |  |  |  |  | 11 months 8 days |  |
Risk free interest rate |  |  |  |  |  |  | 4.90% |  |
Expected volatility |  |  |  |  |  |  | 100.00% |  |
Expected dividend yield |  |  |  |  |  |  | 0.00% |  |
Tranche A Common Warrants | 2024 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Number of warrants converted to common stock |  | 2,646,058 |  |  |  |  |  |  |
Tranche B Common Warrants |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 7.15 |  |
Fair value of warrant liability |  |  |  |  |  |  | $ 2,900,000 |  |
Warrant liability fair value |  |  |  |  |  |  | 7,100,000 |  |
Fair value of warrants |  |  |  |  |  |  | $ 4,200,000 |  |
Expected term (years) |  |  |  |  |  |  | 1 year 8 months 8 days |  |
Risk free interest rate |  |  |  |  |  |  | 4.50% |  |
Expected volatility |  |  |  |  |  |  | 100.00% |  |
Expected dividend yield |  |  |  |  |  |  | 0.00% |  |
Tranche A and Tranche B Common Warrants |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Sale of stock, shares |  | 2,646,058 |  |  |  |  |  |  |
Pre Merger CalciMedica | 2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of stock, shares converted |  |  | 20,706,997 |  |  |  |  |  |
Pre Merger CalciMedica | Calcimedica Preferred Stock | 2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of stock, shares converted |  |  | 84,820,880 |  |  |  |  |  |
Post Merger CalciMedica | 2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Issued |  |  | 596,363 |  |  |  |  |  |
Post Merger CalciMedica | Calcimedica Preferred Stock | 2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Issued |  |  | 84,820,880 |  |  |  |  |  |
Post Merger CalciMedica | Calcimedica Common Stock | 2023 Private Placement |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Conversion of Stock, Shares Issued |  |  | 2,442,852 |  |  |  |  |  |
Post Merger Transaction | Chief Financial Officer |  |  |  |  |  |  |  |  |
Temporary Equity [Line Items] |  |  |  |  |  |  |  |  |
Exercise price of warrants per share |  |  |  |  |  |  | $ 6.6 |  |
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 |  |  |  |

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