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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||
| Assets [abstract] | ||||||||||||
| Property, plant and equipment | — | — | — |
245,000
EUR
|
434,000
EUR
|
— | — | — | — | — | — | — |
| Goodwill | — | — | — |
1,213,000
EUR
|
1,213,000
EUR
|
— | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — |
3,247,000
EUR
|
3,946,000
EUR
|
— | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — |
2,669,000
EUR
|
3,378,000
EUR
|
— | — | — | — |
2,000
EUR
|
— | — |
| Assets | — | — | — |
9,660,000
EUR
|
11,012,000
EUR
|
— | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||
| Equity [abstract] | ||||||||||||
| Issued capital | — | — | — |
2,354,000
EUR
|
2,354,000
EUR
|
— | — | — | — | — | — | — |
| Retained earnings | — | — | — |
32,550,000
EUR
|
31,181,000
EUR
|
— | — | — | — | — | — | — |
| Share premium | — | — | — |
37,057,000
EUR
|
37,057,000
EUR
|
— | — | — | — | — | — | — |
| Equity |
37,057,000
EUR
|
2,354,000
EUR
|
32,550,000
EUR
|
6,861,000
EUR
|
8,230,000
EUR
|
37,057,000
EUR
|
31,181,000
EUR
|
2,354,000
EUR
|
4,364,000
EUR
|
924,000
EUR
|
4,233,000
EUR
|
1,055,000
EUR
|
| Liabilities [abstract] | ||||||||||||
| Deferred tax liabilities | — | — | — |
463,000
EUR
|
572,000
EUR
|
— | — | — | — | — | — | — |
| Equity and liabilities | — | — | — |
9,660,000
EUR
|
11,012,000
EUR
|
— | — | — | — | — | — | — |