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Nature of Business - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended						9 Months Ended
	Feb. 28, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Cash, cash equivalents and short-term investments		$ 14,100						$ 14,100
Net Income (Loss)		(7,804)	$ (5,956)	$ (5,042)	$ (5,618)	$ (3,954)	$ 130	(18,802)	$ (9,442)
Accumulated deficit		$ (178,566)						(178,566)		$ (159,764)
Consideration Transferred								29,400
Proceeds from issuance of notes								$ 9,664	$ 0
Loan Agreement
Gross proceeds from loan agreement	$ 10,000
CalciMedica
Percentage of ownership of common stock		72.00%						72.00%
Graybug
Percentage of ownership of common stock		28.00%						28.00%
Convertible Debt [Member]
Proceeds from issuance of notes								$ 18,300
Preferred and Common stock [Member]
Total net proceeds								$ 142,500

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