Statement Of Financial Position [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Intangible assets other than goodwill | — | — |
75,000
EUR
|
— | — |
93,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
2,134,000
EUR
|
— | — |
10,610,000
EUR
|
— | — | — | — |
44,288,000
EUR
|
— | — | — | — |
| Assets | — | — |
9,132,000
EUR
|
— | — |
25,941,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital | — | — |
1,633,000
EUR
|
— | — |
1,158,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Share premium | — | — |
190,937,000
EUR
|
— | — |
181,211,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
190,937,000
EUR
|
1,633,000
EUR
|
30,702,000
EUR
|
197,051,000
EUR
|
26,220,000
EUR
|
15,279,000
EUR
|
181,211,000
EUR
|
1,158,000
EUR
|
170,024,000
EUR
|
27,625,000
EUR
|
15,989,000
EUR
|
137,726,000
EUR
|
28,617,000
EUR
|
181,175,000
EUR
|
1,158,000
EUR
|
| Equity and liabilities | — | — |
9,132,000
EUR
|
— | — |
25,941,000
EUR
|
— | — | — | — | — | — | — | — | — |