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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Long-Lived Assets by Geographic Areas

Long-lived assets by geographic area are as follows:

(in thousands)
Country						September 30, 2025						December 31, 2024
Switzerland						$	1,527					$	1,460
United Kingdom						—						12,133
United States						1,082						997
						$	2,609					$	14,590

Schedule of Property, Plant and Equipment

Property and equipment as of September 30, 2025 and December 31, 2024 consisted of the following:

(in thousands)						September 30, 2025						December 31, 2024
Leasehold improvements						$	1,472					$	3,873
Laboratory equipment						2,949						4,415
Office equipment						770						970
Hardware and computer software						1,144						1,137
						6,335						10,395
Less: accumulated depreciation						(6,335)						(5,320)
Property and equipment, net						$	—					$	5,075

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Tabular disclosure of long-lived assets, excluding financial instruments, long-term customer relationships of a financial institution, mortgage rights, deferred policy acquisition costs, and deferred tax assets, by geographic areas located in the entity's country of domicile and foreign countries in which the entity holds assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-41

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

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-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-SubTopic 10
-Topic 360
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-1

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