Statement Of Changes In Equity [Abstract]

ABIVAX - Filing #2810976

Concept	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	2023-01-01 to 2023-12-31	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	2022-01-01 to 2022-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Increase (decrease) through appropriation of retained earnings, equity	— EUR	— EUR	60 740 EUR	— EUR	60 740 EUR	42 452 EUR	42 452 EUR	— EUR	— EUR	— EUR	37 633 EUR	37 633 EUR	—	—	—	— EUR
Share issue related cost	— EUR	28 111 EUR	— EUR	28 111 EUR	— EUR	— EUR	— EUR	— EUR	3 280 EUR	3 280 EUR	— EUR	— EUR	4 090 EUR	— EUR	4 090 EUR	—