License Agreements - Termination of license agreement (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
CAR-T License and Vaccine License with TDT
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Amount owes pursuant to termination of license agreement	$ 2.2	$ 2.2	$ 0.2

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479402/808-10-50-1

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Balance Type:	na
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