Other current receivables (Details) - CHF (SFr) SFr in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Other current receivables [abstract]
Other current receivable	SFr 124	SFr 101
Swiss VAT	249	327
Withholding tax	19	0
Total other current receivables	SFr 392	SFr 428
Top of Range [Member]
Other current receivables [abstract]
Maturity period, other current receivables	3 months

The amount of current value added tax receivables. [Refer: Value added tax receivables]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_CurrentValueAddedTaxReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant