Related-party transactions (Details) SFr in Thousands	12 Months Ended
Dec. 31, 2021 CHF (SFr) Individual	Dec. 31, 2020 CHF (SFr)	Dec. 31, 2019 CHF (SFr)
Related-party transactions [Abstract]
Number of individuals, Board of Directors \| Individual	8
Number of individuals, Executive Management \| Individual	6
Short-term employee benefits	SFr 4,403	SFr 3,497	SFr 3,526
Post-employment benefits	266	214	215
Share-based compensation	2,997	2,578	2,155
Total	SFr 7,666	SFr 6,289	SFr 5,896

The number of persons that are the included in Board of Directors excluding the Chief Executive Officer.

No definition available.

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- Definition

The number of persons that comprise key management of the entity that are Executive Management.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

The amount of compensation to key management personnel. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2021-01-01
-Paragraph 17
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-URIDate 2021-03-24

+ Details

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- Definition

The amount of compensation to key management personnel in the form of post-employment benefits. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2021-01-01
-Paragraph 17
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- Definition

The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2021-01-01
-Paragraph 17
-Subparagraph e
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- Definition

The amount of compensation to key management personnel in the form of short-term employee benefits. [Refer: Key management personnel of entity or parent [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 24
-IssueDate 2021-01-01
-Paragraph 17
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-URIDate 2021-03-24

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