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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||
| Property, plant and equipment | — | — | — |
464,000
EUR
|
— | — |
743,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
46 401
EUR
|
— | — |
48 784
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — |
195,000
EUR
|
— | — |
182,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — |
51 576
EUR
|
— | — |
54 581
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||
| Cash and cash equivalents | — | — | — |
18 672
EUR
|
— | — |
25 620
EUR
|
— | — | — | — | — | — |
33 579
EUR
|
— | — | — | — |
| Current assets | — | — | — |
30 478
EUR
|
— | — |
37 200
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — |
82 054
EUR
|
— | — |
91 781
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||
| Issued capital | — | — | — |
4 330
EUR
|
— | — |
3 705
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — |
76 643
EUR
|
— | — |
65 611
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — | — |
408,000
EUR
|
— | — |
549,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity |
76 643
EUR
|
4 330
EUR
|
309,000
EUR
|
22 975
EUR
|
408,000
EUR
|
57 282
EUR
|
32 658
EUR
|
65 611
EUR
|
549,000
EUR
|
3 705
EUR
|
220,000
EUR
|
35 890
EUR
|
160,000
EUR
|
47 890
EUR
|
21 111
EUR
|
65 605
EUR
|
150,000
EUR
|
3 705
EUR
|
| Liabilities [abstract] | ||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||
| Non-current provisions | — | — | — |
429,000
EUR
|
— | — |
524,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities | — | — | — |
1 311
EUR
|
— | — |
1 514
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — |
40 280
EUR
|
— | — |
42 856
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||
| Current tax liabilities, current | — | — | — |
20,000
EUR
|
— | — |
21,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — |
18 799
EUR
|
— | — |
16 268
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
82 054
EUR
|
— | — |
91 781
EUR
|
— | — | — | — | — | — | — | — | — | — | — |