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Other Financial Assets - Additional Information (Details) - EUR (€) € in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of financial assets [line items] |  |  |  |
Total amount of financial assets | € 4,431 | € 4,431 | € 1,458 | € 1,727
Liquidity account, cash balance | 513 | € 513 | € 688 | € 1,023
Number of shares recorded as deduction from equity (in shares) |  | 137,012 | 88,929 | 18,132
Genoscience Pharma |  |  |  |
Disclosure of financial assets [line items] |  |  |  |
Subscription of new ordinary shares | € 3,000 |  |  |

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