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Intangible assets (Details) SFr in Thousands | Dec. 31, 2022 CHF (SFr) | Dec. 31, 2021 CHF (SFr)
--- | --- | ---
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | SFr 50,416 | SFr 50,416
Gross Carrying Amount |  |
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | 50,416 | 50,416
Accumulated Amortization |  |
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | 0 | 0
Acquired IPR&D Asset |  |
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | SFr 50,416 | SFr 50,416
Acquired IPR&D Asset | Discount rate, measurement input |  |
Disclosure of intangible assets material to entity [abstract] |  |
Discount rate | 0.17 | 0.15
Acquired IPR&D Asset | Gross Carrying Amount |  |
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | SFr 50,416 | SFr 50,416
Acquired IPR&D Asset | Accumulated Amortization |  |
Disclosure of intangible assets material to entity [abstract] |  |
Intangible Assets | SFr 0 | SFr 0

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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_e&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 54 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_54_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The value of significant unobservable input used in the measurement of the fair value of assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_d&doctype=Standard -URIDate 2021-03-24 + Details
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