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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — |
926,000
EUR
|
— | — | — | — |
947,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — |
51 122
EUR
|
— | — | — | — |
52 600
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — |
173,000
EUR
|
— | — | — | — |
165,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — |
33 579
EUR
|
— | — | — | — |
29 368
EUR
|
— | — | — | — | — |
25 842
EUR
|
— | — | — | — | — |
| Assets | — |
101 876
EUR
|
— | — | — | — |
96 973
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — |
3 705
EUR
|
— | — | — | — |
3 597
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium | — |
65 605
EUR
|
— | — | — | — |
65 449
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — |
160,000
EUR
|
— | — | — | — |
93,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
160,000
EUR
|
47 890
EUR
|
65 605
EUR
|
150,000
EUR
|
3 705
EUR
|
21 111
EUR
|
61 364
EUR
|
3 597
EUR
|
7 485
EUR
|
93,000
EUR
|
104,000
EUR
|
65 449
EUR
|
58 536
EUR
|
100,000
EUR
|
48 497
EUR
|
7 286
EUR
|
148,000
EUR
|
3 001
EUR
|
| Liabilities [abstract] | ||||||||||||||||||
| Deferred tax liabilities | — |
1 748
EUR
|
— | — | — | — |
2 080
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — |
101 876
EUR
|
— | — | — | — |
96 973
EUR
|
— | — | — | — | — | — | — | — | — | — | — |