Other Current Assets and Accrued Income - Summary of Accrued Income (Details) - CHF (SFr) SFr in Thousands	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025
Current prepayments and current accrued income including current contract assets [abstract]
Balance as of January 1,	SFr 993	SFr 629
Accrued income recognized during the period	519	545
Foreign exchange revaluation	14	5
Balance as of June 30,	SFr 1,526	SFr 1,179

The amount of assets representing income that has been earned but is not yet a receivable, including contract assets. [Refer: Contract assets]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_78&doctype=Standard
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