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Convertible Preferred Stock, Common Stock and Stockholders' Equity (Deficit) - Additional Information (Details) - USD ($)				1 Months Ended				3 Months Ended			9 Months Ended
	Feb. 05, 2024	Jan. 19, 2024	Mar. 20, 2023	May 31, 2024	Aug. 31, 2023	Oct. 31, 2022	Nov. 30, 2020	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Temporary Equity [Line Items]
Common stock, shares authorized								500,000,000			500,000,000		500,000,000
Preferred stock, shares authorized								10,000,000			10,000,000		10,000,000
Available for sale under Shelf Registration Statement								$ 99,600,000			$ 99,600,000
Net proceeds									$ 47,000
Common stock, shares issued								10,761,917			10,761,917		5,754,505
Fair value of warrant liability											$ (7,790,000)	$ (1,146,000)
Common stock par value								$ 0.0001			$ 0.0001		$ 0.0001
Expected term (years)											6 years 3 days	6 years 3 months
Risk free interest rate											3.11%
Expected volatility											96.00%
Expected dividend yield											0.00%	0.00%
General and administrative								$ 2,190,000		$ 2,061,000	$ 7,385,000	$ 20,679,000
Preferred stock, par value								$ 0.0001			$ 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			$ 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]
Stock issued								0			8,950
Commissions paid											$ 13,000
Remaining amount of available for sale											17,000,000
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			500,000,000
Preferred stock, shares authorized								10,000,000			10,000,000
Common stock par value								$ 0.0001			$ 0.0001
Preferred stock, par value								$ 0.0001			$ 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				10,000			400,000
Warrant liability fair value				$ 20,000			$ 120,000
Expected term (years)				12 months			10 years
Risk free interest rate				4.42%			0.96%
Expected volatility				89.00%			80.00%
Expected dividend yield				0.00%			0.00%
General and administrative								$ 5,000			$ 8,000
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	$ 5,000	$ 42,000
Warrant term						10 years
Directors, Employees or Consultants | 2024 Private Placement
Temporary Equity [Line Items]
Exercise price of warrants per share								$ 4.3915			$ 4.3915
Maximum
Temporary Equity [Line Items]
Risk free interest rate												3.56%
Expected volatility												76.00%
Maximum | Officers and Directors
Temporary Equity [Line Items]
Vesting period						48 months
Minimum
Temporary Equity [Line Items]
Risk free interest rate												3.50%
Expected volatility												75.00%
Minimum | Officers and Directors
Temporary Equity [Line Items]
Vesting period						12 months
Common Stock
Temporary Equity [Line Items]
Stock issued									8,950		101,522
Net proceeds											$ 319,000
Fair value of common stock		$ 8,500,000
Common stock, shares issued			1,571,433
Common Warrants | 2024 Private Placement
Temporary Equity [Line Items]
Exercise price of warrants per share								$ 3.827			$ 3.827
Preferred Stock
Temporary Equity [Line Items]
Fair value of warrant liability								$ 0		0	$ 0	$ 796,000
Pre Funded Warrants
Temporary Equity [Line Items]
Exercise price of warrants per share								$ 0.0001			$ 0.0001
Warrant liability fair value								$ 500,000			$ 500,000
Pre Funded Warrants | 2024 Private Placement
Temporary Equity [Line Items]
Exercise price of warrants per share								$ 3.8269			$ 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			$ 0.0001
Warrant liability fair value								$ 100,000			$ 100,000
Tranche A Common Warrants
Temporary Equity [Line Items]
Exercise price of warrants per share								$ 5.36			$ 5.36
Fair value of warrant liability								$ 200,000			$ 4,100,000
Warrants expiration date								Jul. 27, 2024			Jul. 27, 2024
Warrant liability fair value								$ 4,100,000			$ 4,100,000
Fair value of warrants								$ 0			$ 0
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			$ 7.15
Fair value of warrant liability								$ 300,000			$ 3,700,000
Warrant liability fair value								7,100,000			7,100,000
Fair value of warrants								3,400,000			$ 3,400,000
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
Warrants | Chief Financial Officer
Temporary Equity [Line Items]
General and administrative								$ 0		$ 13,000	$ 0	$ 38,000
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			$ 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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