Statement Of Financial Position [Abstract]
| Concept |
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 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 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — |
338,051,000
EUR
|
— | — | — | — | — | — | — | — |
331,709,000
EUR
|
— | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — |
4,509,000
EUR
|
— | — | — | — | — | — | — | — |
4,795,000
EUR
|
— | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
4,952,000
EUR
|
— | — | — | — | — | — | — | — |
6,248,000
EUR
|
— | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
18,994,000
EUR
|
— | — | — | — | — | — | — | — |
13,506,000
EUR
|
— | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
1,819,000
EUR
|
— | — | — | — | — | — | — | — |
33,000
EUR
|
— | — | — | — |
30,000
EUR
|
— | — | — |
| Assets | — | — | — |
489,825,000
EUR
|
— | — | — | — | — | — | — | — |
414,353,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — |
146,256,000
EUR
|
— | — | — | — | — | — | — | — |
146,256,000
EUR
|
— | — | — | — | — | — | — | — |
| Retained earnings | — | — | — |
20,013,000
EUR
|
— | — | — | — | — | — | — | — |
25,432,000
EUR
|
— | — | — | — | — | — | — | — |
| Share premium | — | — | — |
8,579,000
EUR
|
— | — | — | — | — | — | — | — |
8,579,000
EUR
|
— | — | — | — | — | — | — | — |
| Other reserves | — | — | — |
32,034,000
EUR
|
— | — | — | — | — | — | — | — |
23,144,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity |
14,626,000
EUR
|
20,013,000
EUR
|
32,034,000
EUR
|
221,508,000
EUR
|
-
EUR
|
8,579,000
EUR
|
146,256,000
EUR
|
14,626,000
EUR
|
25,432,000
EUR
|
146,256,000
EUR
|
23,144,000
EUR
|
8,579,000
EUR
|
218,037,000
EUR
|
-
EUR
|
14,626,000
EUR
|
23,099,000
EUR
|
8,579,000
EUR
|
195,571,000
EUR
|
2,959,000
EUR
|
52,000
EUR
|
146,256,000
EUR
|
| Liabilities [abstract] | |||||||||||||||||||||
| Liabilities | — | — | — |
268,317,000
EUR
|
— | — | — | — | — | — | — | — |
196,316,000
EUR
|
— | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
489,825,000
EUR
|
— | — | — | — | — | — | — | — |
414,353,000
EUR
|
— | — | — | — | — | — | — | — |