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Financial instruments and risk management (Tables) | 12 Months Ended
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Dec. 31, 2022
Financial instruments and risk management [Abstract] |
Carrying amounts of financial assets and financial liabilities | The following table shows the carrying amounts of financial assets and financial liabilities: ​
​ | ​ | ​ | ​ | ​
​ | ​ | As of
​ | ​ | December 31,
In CHF thousands | ​ | 2022 | ​ | 2021
Financial assets |  |  |  |
Right-of-use assets |  | 2,808 |  | 2,914
Long-term financial assets |  | 361 |  | 363
Other current receivables |  | 392 |  | 428
Short-term financial assets |  | 91,000 |  | 116,000
Cash and cash equivalents |  | 31,586 |  | 82,216
Total financial assets |  | 126,147 |  | 201,921
​
​ | ​ | ​ | ​ | ​
​ | ​ | As of
​ | ​ | December 31,
In CHF thousands | ​ | 2022 | ​ | 2021
Financial liabilities |  |  |  |
Long-term lease liabilities |  | 2,253 |  | 2,340
Trade and other payables |  | 929 |  | 2,003
Accrued expenses |  | 9,417 |  | 16,736
Short-term lease liabilities |  | 548 |  | 570
Total financial liabilities |  | 13,147 |  | 21,649
​

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