Statement Of Changes In Equity [Abstract]

ABIVAX - Filing #2810976

Concept	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	2022-01-01 to 2022-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	196 010 EUR	135 209 EUR	147 740 EUR	—	—	—	—	478 218 EUR	—	629,000 EUR	112,000 EUR	—	—	82 770 EUR	60 740 EUR	—	150 476 EUR	223,000 EUR	— EUR	7 189 EUR	—	—	—	—	42 452 EUR	—	25 934 EUR	—	—	39 361 EUR	—	25 934 EUR	107 578 EUR	— EUR	168,000 EUR	—	—	1 733 EUR	143,000 EUR	37 633 EUR	2 851 EUR	— EUR	42 073 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	147 740 EUR	147 740 EUR	—	—	—	— EUR	—	— EUR	— EUR	—	— EUR	—	—	— EUR	60 740 EUR	—	—	— EUR	—	—	—	—	60 740 EUR	60 740 EUR	— EUR	— EUR	—	—	—	42 452 EUR	—	—	— EUR	—	—	—	—	—	42 452 EUR	—	—	—	—	—	—
Other comprehensive income	225,000 EUR	— EUR	—	—	—	112,000 EUR	225,000 EUR	— EUR	112,000 EUR	—	— EUR	—	—	— EUR	235,000 EUR	—	—	235,000 EUR	—	—	—	—	— EUR	235,000 EUR	— EUR	— EUR	—	169,000 EUR	—	— EUR	—	—	169,000 EUR	—	—	—	—	—	169,000 EUR	—	—	—	—	—	—
Comprehensive income	147 516 EUR	147 740 EUR	—	—	—	112,000 EUR	147 516 EUR	— EUR	112,000 EUR	—	— EUR	—	—	— EUR	60 506 EUR	—	—	235,000 EUR	—	—	—	—	60 740 EUR	—	— EUR	— EUR	—	—	—	42 452 EUR	—	—	169,000 EUR	—	—	—	—	—	42 283 EUR	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	10,000 EUR	— EUR	—	—	—	10,000 EUR	—	— EUR	—	—	— EUR	—	—	— EUR	—	—	—	28,000 EUR	—	—	—	—	— EUR	28,000 EUR	— EUR	—	—	126,000 EUR	—	— EUR	— EUR	—	126,000 EUR	—	—	—	—	— EUR	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	8 179 EUR	— EUR	—	—	—	8 179 EUR	—	— EUR	—	—	— EUR	—	—	— EUR	—	—	—	1 164 EUR	—	—	—	—	— EUR	1 164 EUR	— EUR	—	—	—	—	— EUR	— EUR	—	828,000 EUR	—	—	—	—	— EUR	828,000 EUR	—	—	—	—	—	—