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 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 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 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||
| Property, plant and equipment | — |
164,317,000
EUR
|
— | — | — | — | — | — |
156,034,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — |
26,696,000
EUR
|
— | — | — | — | — | — |
19,113,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
98,644,000
EUR
|
— | — | — | — | — | — |
102,691,000
EUR
|
— | — | — | — | — | — | — | — | — |
114,966,000
EUR
|
— | — | — | — | — |
| Assets | — |
706,481,000
EUR
|
— | — | — | — | — | — |
654,025,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||
| Issued capital | — |
45,790,000
EUR
|
— | — | — | — | — | — |
45,790,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — |
44,218,000
EUR
|
— | — | — | — | — | — |
53,324,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Other reserves | — |
1,682,000
EUR
|
— | — | — | — | — | — |
9,910,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
3,804,000
EUR
|
220,603,000
EUR
|
44,218,000
EUR
|
45,790,000
EUR
|
745,000
EUR
|
2,155,000
EUR
|
34,000
EUR
|
221,459,000
EUR
|
203,481,000
EUR
|
2,943,000
EUR
|
53,324,000
EUR
|
45,790,000
EUR
|
533,000
EUR
|
50,000
EUR
|
221,459,000
EUR
|
6,917,000
EUR
|
52,340,000
EUR
|
221,459,000
EUR
|
206,002,000
EUR
|
5,346,000
EUR
|
8,000
EUR
|
3,014,000
EUR
|
555,000
EUR
|
45,790,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||
| Provisions [abstract] | ||||||||||||||||||||||||
| Provisions for employee benefits | — |
10,948,000
EUR
|
— | — | — | — | — | — |
9,280,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Current tax liabilities | — |
562,000
EUR
|
— | — | — | — | — | — |
252,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — |
299,000
EUR
|
— | — | — | — | — | — |
281,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — |
706,481,000
EUR
|
— | — | — | — | — | — |
654,025,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |