Statement Of Changes In Equity [Abstract]

Transgene - Filing #2813436

Concept	2022-01-01 to 2022-12-31	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	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	As at 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	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	As at 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	As at 2020-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	—	—	50 628 EUR	32 804 EUR	—	808,000 EUR	450,000 EUR	70 813 EUR	50 102 EUR	37 841 EUR	—	—	—	—	19 536 EUR	2 933 EUR	—	—	—	—	—	—	31 092 EUR	1 423 EUR	67 209 EUR	67 441 EUR	—	48 886 EUR	—	50 716 EUR	41 921 EUR	1 051 EUR	17 231 EUR	13 861 EUR	39 212 EUR	1 726 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	- EUR	- EUR	32 804 EUR	—	—	- EUR	—	—	—	—	—	- EUR	32 804 EUR	32 804 EUR	- EUR	—	—	- EUR	19 536 EUR	- EUR	19 536 EUR	- EUR	- EUR	—	—	—	—	- EUR	—	19 536 EUR	—	—	—	—	—	—	—
Other comprehensive income	—	—	973,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	372,000 EUR	—	—	—	—	—	—	—
Comprehensive income	- EUR	- EUR	31 831 EUR	—	—	- EUR	—	—	—	—	—	973,000 EUR	32 804 EUR	31 831 EUR	- EUR	—	—	- EUR	19 908 EUR	372,000 EUR	19 536 EUR	- EUR	- EUR	—	—	—	—	- EUR	—	19 908 EUR	—	—	—	—	—	—	—
Issue of equity	- EUR	- EUR	—	—	—	- EUR	—	—	—	—	—	- EUR	- EUR	- EUR	- EUR	—	—	- EUR	33 342 EUR	- EUR	- EUR	- EUR	26 377 EUR	—	—	—	—	6 965 EUR	—	—	—	—	—	—	—	—	—
Increase (decrease) through treasury share transactions, equity	- EUR	212,000 EUR	—	—	—	- EUR	—	—	—	—	—	- EUR	- EUR	212,000 EUR	- EUR	—	—	57,000 EUR	57,000 EUR	- EUR	- EUR	- EUR	- EUR	—	—	—	—	- EUR	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	- EUR	- EUR	—	—	—	- EUR	—	—	—	—	—	- EUR	- EUR	2 675 EUR	2 675 EUR	—	—	- EUR	3 002 EUR	- EUR	- EUR	- EUR	3 002 EUR	—	—	—	—	- EUR	—	—	—	—	—	—	—	—	—