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Contract revenues, Tau Vaccine in AD - 2014 Agreement with Janssen Pharmaceuticals (Details) - CHF (SFr) SFr in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | May 31, 2016 | Dec. 31, 2014 | May 31, 2014 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Contract revenues |  |  |  |  |  |  |
Revenue from contracts with customers |  |  |  |  | SFr 3,935 | SFr 0 | SFr 15,431
2014 Agreement with Janssen Pharmaceuticals [Member] |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |
Revenue from contracts with customers |  |  |  |  | SFr 0 | 0 | 1,083
Tau Vaccine in AD [Member] | 2014 Agreement with Janssen Pharmaceuticals [Member] |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |
Period to provide notice of termination of agreement |  |  |  |  | 90 days |  |
Milestone payment received |  | SFr 4,900 |  |  |  |  |
Revenue from contracts with customers |  |  | SFr 25,900 | SFr 4,900 | SFr 0 | SFr 0 | SFr 1,100
Collaborative agreement, upfront payments received | SFr 25,900 |  |  |  |  |  |
Tau Vaccine in AD [Member] | 2014 Agreement with Janssen Pharmaceuticals [Member] | Minimum |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |
Total potential collaboration agreement value remaining | 458,000 |  |  |  | 458,000 |  |
Tau Vaccine in AD [Member] | 2014 Agreement with Janssen Pharmaceuticals [Member] | Maximum |  |  |  |  |  |  |
Contract revenues |  |  |  |  |  |  |
Total potential collaboration agreement value | SFr 500,000 |  |  |  | SFr 500,000 |  |

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- Definition Payment(s) received for milestone payments associated with a collaborative agreement. + References No definition available. + Details
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- Definition Period of time that notice is required to be given for cancellation of the collaborative agreement contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The total potential value of the collaborative agreement. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 113 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_113_a&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 114 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_114&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of the transaction price allocated to the performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period. The transaction price is the amount of consideration to which an entity expects to be entitled in exchange for transferring promised goods or services to a customer, excluding amounts collected on behalf of third parties (for example, some sales taxes). [Refer: Performance obligations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2021-01-01 -Paragraph 120 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2021-en-r&anchor=para_120_a&doctype=Standard -URIDate 2021-03-24 + Details
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