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Share-based payments - Disclosure of Indirect Measurement of Fair Value of Goods or Services Received, Share Options Granted During Period (Details) € / shares in Units, € in Thousands |  |  |  |  |  |  |  |  |  |  | 12 Months Ended
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Jun. 22, 2022 EUR (€) yr € / shares | Jun. 21, 2021 EUR (€) yr € / shares | Apr. 20, 2021 EUR (€) yr € / shares | Mar. 11, 2020 EUR (€) yr € / shares | Oct. 24, 2019 EUR (€) yr € / shares | Mar. 29, 2019 EUR (€) yr € / shares | Mar. 06, 2018 EUR (€) yr € / shares | Jan. 07, 2017 EUR (€) yr € / shares | Nov. 03, 2016 EUR (€) yr € / shares | Feb. 02, 2016 EUR (€) yr € / shares | Dec. 31, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Dec. 31, 2022 EUR (€)
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | € 4,298 | € 3,222 | € 3,173
OSA |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 2,047 | 941 | 548
OSA 2016 Ordinary |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  |  |  |  | € 13.05 |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  |  |  |  | € 13.05 |  |  |
Risk-free rate |  |  |  |  |  |  |  |  |  | 0.32% |  |  |
Yield |  |  |  |  |  |  |  |  |  | 0.00% |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  |  |  |  | € 117 |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2016 Ordinary | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  |  | 59.00% |  |  |
OSA 2016 Ordinary | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  |  | 62.00% |  |  |
OSA 2016 Ordinary | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  |  | 60.00% |  |  |
OSA 2016 Ordinary | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  |  | 5.5 |  |  |
OSA 2016 Ordinary | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  |  | 6 |  |  |
OSA 2016 Ordinary | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  |  | 6.5 |  |  |
OSA 2016-1 Performance |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  |  |  |  | € 13.05 |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  |  |  |  | € 13.05 |  |  |
Volatility |  |  |  |  |  |  |  |  |  | 59.00% |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  |  | 5,000 |  |  |
Risk-free rate |  |  |  |  |  |  |  |  |  | 0.19% |  |  |
Yield |  |  |  |  |  |  |  |  |  | 0.00% |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  |  |  |  | € 69 |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2016-2 |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  |  |  | € 14.26 |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  |  |  | € 14.26 |  |  |  |
Risk-free rate |  |  |  |  |  |  |  |  | 0.04% |  |  |  |
Yield |  |  |  |  |  |  |  |  | 0.00% |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  |  |  | € 27 |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2016-2 | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  | 58.00% |  |  |  |
OSA 2016-2 | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  | 62.00% |  |  |  |
OSA 2016-2 | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  |  | 59.00% |  |  |  |
OSA 2016-2 | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  | 5.5 |  |  |  |
OSA 2016-2 | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  | 6 |  |  |  |
OSA 2016-2 | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  |  | 6.5 |  |  |  |
OSA 2017 Ordinary |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  |  | € 15.93 |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  |  | € 14.97 |  |  |  |  |
Risk-free rate |  |  |  |  |  |  |  | 0.23% |  |  |  |  |
Yield |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  |  | € 31 |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2017 Ordinary | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  | 58.00% |  |  |  |  |
OSA 2017 Ordinary | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  | 61.00% |  |  |  |  |
OSA 2017 Ordinary | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  |  |  | 59.00% |  |  |  |  |
OSA 2017 Ordinary | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  | 5.5 |  |  |  |  |
OSA 2017 Ordinary | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  | 6 |  |  |  |  |
OSA 2017 Ordinary | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  | 6.5 |  |  |  |  |
OSA 2017 Performance |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  |  | € 15.93 |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  |  | € 14.97 |  |  |  |  |
Volatility |  |  |  |  |  |  |  | 59.00% |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  |  | 5,000 |  |  |  |  |
Risk-free rate |  |  |  |  |  |  |  | 0.11% |  |  |  |  |
Yield |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  |  | € 35 |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2018 |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  |  | € 12.87 |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  |  | € 12.87 |  |  |  |  |  |
Volatility |  |  |  |  |  |  | 35.00% |  |  |  |  |  |
Risk-free rate |  |  |  |  |  |  | 0.00% |  |  |  |  |  |
Yield |  |  |  |  |  |  | 0.00% |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  |  | € 252 |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2018 | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  | 5.5 |  |  |  |  |  |
OSA 2018 | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  | 6 |  |  |  |  |  |
OSA 2018 | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  |  | 6.5 |  |  |  |  |  |
OSA 2019-1 |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  |  | € 11.08 |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  |  | € 11.08 |  |  |  |  |  |  |
Yield |  |  |  |  |  | 0.00% |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  |  | € 140 |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | (1)
OSA 2019-1 | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  | 38.10% |  |  |  |  |  |  |
Risk-free rate |  |  |  |  |  | 0.103% |  |  |  |  |  |  |
OSA 2019-1 | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  |  |  |  | 37.40% |  |  |  |  |  |  |
Risk-free rate |  |  |  |  |  | 0.149% |  |  |  |  |  |  |
OSA 2019-1 | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  | 6 |  |  |  |  |  |  |
OSA 2019-1 | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  |  | 6.5 |  |  |  |  |  |  |
OSA LLY 2019 |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  |  | € 6.41 |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  |  | € 6.41 |  |  |  |  |  |  |  |
Volatility |  |  |  |  | 37.00% |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  |  | 10,000 |  |  |  |  |  |  |  |
Risk-free rate |  |  |  |  | 0.40% |  |  |  |  |  |  |  |
Yield |  |  |  |  | 0.00% |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  |  | € 252 |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
OSA 2020 |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  |  | € 6.25 |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  |  | € 6.25 |  |  |  |  |  |  |  |  |
Volatility |  |  |  | 38.00% |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  |  | 10,000 |  |  |  |  |  |  |  |  |
Risk-free rate |  |  |  | 0.31% |  |  |  |  |  |  |  |  |
Yield |  |  |  | 0.00% |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  |  | € 939 |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 0 | 13 | 101
OSA 2021-04 O |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  | € 13.60 |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  | € 13.74 |  |  |  |  |  |  |  |  |  |
Yield |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  | € 684 |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 5 | 34 | (28)
OSA 2021-04 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  | 38.90% |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  | 0.38% |  |  |  |  |  |  |  |  |  |
OSA 2021-04 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  | 37.80% |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  | 0.33% |  |  |  |  |  |  |  |  |  |
OSA 2021-04 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  |  | 38.30% |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  | 0.28% |  |  |  |  |  |  |  |  |  |
OSA 2021-04 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  | 5.5 |  |  |  |  |  |  |  |  |  |
OSA 2021-04 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  | 6 |  |  |  |  |  |  |  |  |  |
OSA 2021-04 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  | 6.5 |  |  |  |  |  |  |  |  |  |
OSA 2021-04 P |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  |  | € 13.60 |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  |  | € 13.74 |  |  |  |  |  |  |  |  |  |
Volatility |  |  | 39.10% |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  |  | 10,000 |  |  |  |  |  |  |  |  |  |
Risk-free rate |  |  | 0.03% |  |  |  |  |  |  |  |  |  |
Yield |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  |  | € 1,816 |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 226 | 216 | 163
OSA 2021-06 O |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  | € 12.20 |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  | € 12.99 |  |  |  |  |  |  |  |  |  |  |
Yield |  | 0.00% |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  | € 246 |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 13 | 47 | 107
OSA 2021-06 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  | 39.20% |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  | 0.35% |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  | 37.90% |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  | 0.30% |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility |  | 38.10% |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  | 0.26% |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  | 5.5 |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  | 6 |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  | 6.5 |  |  |  |  |  |  |  |  |  |  |
OSA 2021-06 P |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares |  | € 12.20 |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares |  | € 12.99 |  |  |  |  |  |  |  |  |  |  |
Volatility |  | 39.10% |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr |  | 10,000 |  |  |  |  |  |  |  |  |  |  |
Risk-free rate |  | 0.13% |  |  |  |  |  |  |  |  |  |  |
Yield |  | 0.00% |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € |  | € 212 |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 24 | 24 | 24
OSA 2022-06 O |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares | € 3.68 |  |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares | € 4.16 |  |  |  |  |  |  |  |  |  |  |  |
Yield | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € | € 580 |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 86 | 267 | 178
OSA 2022-06 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 42.06% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 1.83% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 41.21% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 1.87% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 40.65% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 1.90% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 5.5 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 6 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 6.5 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2022-06 P |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares | € 3.68 |  |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares | € 4.16 |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 40.08% |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 10,000 |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 2.28% |  |  |  |  |  |  |  |  |  |  |  |
Yield | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € | € 80 |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 11 | 20 | 4
OSA 2023 - 01 O |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares | € 6.75 |  |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares | € 5.00 |  |  |  |  |  |  |  |  |  |  |  |
Yield | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € | € 1,255 |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | 544 | 321 | 0
OSA 2023 - 01 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 45.07% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 2.85% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2023 - 01 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 44.11% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 2.83% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2023 - 01 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 43.41% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 2.82% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2023 - 01 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 5.55 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2023 - 01 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 6 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2023 - 01 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 6.5 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share price (in euros) | € / shares | € 5.19 |  |  |  |  |  |  |  |  |  |  |  |
Exercise price (in euros per share) | € / shares | € 5.81 |  |  |  |  |  |  |  |  |  |  |  |
Yield | 0.00% |  |  |  |  |  |  |  |  |  |  |  |
Value of initial plan (in thousands of euros) | € | € 3,107 |  |  |  |  |  |  |  |  |  |  |  |
Expense for the year | € |  |  |  |  |  |  |  |  |  |  | € 1,138 | € 0 | € 0
OSA 2024 - 01 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 53.30% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 3.00% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 51.90% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 3.02% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Volatility | 50.70% |  |  |  |  |  |  |  |  |  |  |  |
Risk-free rate | 3.02% |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O | Tranche one |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 5.4 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O | Tranche two |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 5.9 |  |  |  |  |  |  |  |  |  |  |  |
OSA 2024 - 01 O | Tranche three |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maturity (in years) | yr | 6.4 |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of expense arising from equity-settled share-based payment transactions in which the goods or services received did not qualify for recognition as assets. [Refer: Expense from share-based payment transactions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 51 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_51_a&doctype=Standard -URIDate 2024-03-27 + Details
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