Statement Of Financial Position [Abstract]
| Concept |
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 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 |
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 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||
| Property, plant and equipment | — | — |
23,631,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
22,997,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — |
4,529,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
4,617,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — |
20,575,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
20,276,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method | — | — |
13,556,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
13,744,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — |
227,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
227,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — |
59,524,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
73,546,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
49,778,000
EUR
|
— | — | — |
| Assets | — | — |
208,435,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
207,177,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||
| Issued capital | — | — |
1,936,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
1,936,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — |
178,681,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
168,294,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Share premium | — | — |
743,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
743,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Treasury shares | — | — |
9,668,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
4,755,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests | — | — |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
0
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
2,377,000
EUR
|
6,406,000
EUR
|
168,112,000
EUR
|
1,369,000
EUR
|
164,000
EUR
|
757,000
EUR
|
743,000
EUR
|
178,681,000
EUR
|
9,668,000
EUR
|
1,936,000
EUR
|
4,755,000
EUR
|
168,294,000
EUR
|
1,936,000
EUR
|
1,262,000
EUR
|
163,121,000
EUR
|
319,000
EUR
|
156,000
EUR
|
743,000
EUR
|
6,406,000
EUR
|
2,522,000
EUR
|
149,405,000
EUR
|
1,936,000
EUR
|
145,000
EUR
|
1,106,000
EUR
|
1,932,000
EUR
|
743,000
EUR
|
144,650,000
EUR
|
1,262,000
EUR
|
603,000
EUR
|
6,406,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||
| Deferred tax liabilities | — | — |
367,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
707,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities | — | — |
208,435,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — |
207,177,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |