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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Stock-Based Compensation - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands		7 Months Ended	12 Months Ended
	Jul. 31, 2024	Jul. 30, 2024	Dec. 31, 2025	Dec. 31, 2023
Number of shares
Options issued as part of the Business Combination (shares)	7,587
Stock option exercises (in shares)		0
Weighted Average Remaining Contractual Life (in years)
Weighted Average Remaining Contractual Life (in years)			9 years 2 months 12 days
Vested and expected to vest			9 years 2 months 1 day
Vested and exercisable			9 years 2 months 12 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Additional General Disclosures [Abstract]
Fair value of awards vested		$ 300
Unrecognized compensation cost		$ 400	$ 2,600
2022 Stock Incentive Plan
Number of shares
Outstanding (shares)	740,409	747,001
Forfeited (shares)		(6,592)
Outstanding (shares)		740,409		747,001
Weighted Average Exercise Price
Outstanding (in dollars per share)	$ 6.18	$ 6.17
Forfeited (in dollars per share)		4.82
Outstanding (in dollars per share)		$ 6.18		$ 6.17
Weighted Average Remaining Contractual Life (in years)
Weighted Average Remaining Contractual Life (in years)				7 years 5 months 12 days
Aggregate Intrinsic Value [Abstract]
Outstanding		$ 72
Outstanding				$ 72
2024 Employee Stock Purchase Plan
Number of shares
Outstanding (shares)			7,587
Options issued as part of the Business Combination (shares)			5,777,965
Outstanding (shares)			5,785,552
Vested and expected to vest (shares)			2,057,844
Vested and exercisable (shares)			5,785,552
Weighted Average Exercise Price
Outstanding (in dollars per share)			$ 0
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price			0.95
Options issued as part of the Business Combination (in dollars per share)			0.95
Outstanding (in dollars per share)			0.95
Vested and expected to vest (in dollars per share)			0.93
Vested and exercisable (in dollars per share)			$ 0.95
Aggregate Intrinsic Value [Abstract]
Outstanding			$ 0
Outstanding			703
Vested and expected to vest			272
Vested and exercisable			$ 703
Adagio Medical Inc
Number of shares
Forfeited (shares)	(45,544)