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Due from Former Parent

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Ending Cash Balance after Former Parent Contribution

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Revenue from Former Parent

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Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Number of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination.

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Value of shares of stock issued during the period as part of a transaction to acquire assets that do not qualify as a business combination.

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Related Party Transactions - Narrative (Details) - USD ($)	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2023	Jan. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Oct. 03, 2022
Related Party Transactions
Restricted cash held on behalf of Former Parent			$ 40,415,000	$ 0	$ 40,415,000	$ 0	$ 35,212,000
Due to Former Parent			40,415,000		40,415,000		$ 35,212,000
Ending cash balance after former parent contribution								$ 257,799,000
Research and development expense			79,490,000	177,087,000	142,951,000	247,183,000
Yale University \| Related Party
Related Party Transactions
Research and development expense			947,000	488,000	1,699,000	2,288,000
Due to related party			0		0
Transition Services \| Former Parent
Related Party Transactions
Revenue from Former Parent			1,674,000		5,559,000
Due from Former Parent			2,605,000		2,605,000
Yale University \| Yale MoDE Agreement
Related Party Transactions
Amount of funding		$ 4,000,000
Research and development expense			333,000	$ 334,000	666,000	$ 2,000,000
Yale University \| 2023 Yale SRA
Related Party Transactions
Amount of funding	$ 612,000
Research and development expense			$ 153,000		$ 153,000
Yale University \| License agreement \| Yale MoDE Agreement
Related Party Transactions
Payment for license agreement		$ 1,000,000
Issuance of common shares as payment for assets (in shares)		11,668
Issuance of common shares as payment for assets		$ 1,000,000