Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||
| Property, plant and equipment [abstract] | ||||||
| Property, plant and equipment |
29,000
EUR
|
— |
1,000
EUR
|
— | — | — |
| Investment property [abstract] | ||||||
| Investment property |
39,960
EUR
|
— |
42,100
EUR
|
— | — | — |
| Investments accounted for using equity method [abstract] | ||||||
| Investments in joint ventures accounted for using equity method |
3,630
EUR
|
— |
3,951
EUR
|
— | — | — |
| Trade and other non-current receivables [abstract] | ||||||
| Trade and other non-current receivables |
642,000
EUR
|
— |
642,000
EUR
|
— | — | — |
| Trade and other current receivables [abstract] | ||||||
| Current trade receivables |
835,000
EUR
|
— |
1,155
EUR
|
— | — | — |
| Other current receivables |
2,083
EUR
|
— |
2,365
EUR
|
— | — | — |
| Current prepayments and current accrued income including current contract assets [abstract] | ||||||
| Current prepayments and current accrued income including current contract assets |
444,000
EUR
|
— |
248,000
EUR
|
— | — | — |
| Cash and cash equivalents [abstract] | ||||||
| Cash and cash equivalents |
32,265
EUR
|
-
EUR
|
25,863
EUR
|
-
EUR
|
73,017
EUR
|
14,000
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | ||||||
| Non-current assets or disposal groups classified as held for sale |
-
EUR
|
— |
3,850
EUR
|
— | — | — |
| Borrowings [abstract] | ||||||
| Non-current portion of non-current borrowings |
11,918
EUR
|
— |
13,772
EUR
|
— | — | — |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||||
| Current borrowings |
1,854
EUR
|
— |
1,711
EUR
|
— | — | — |
| Non-current portion of non-current borrowings, by type [abstract] | ||||||
| Trade and other current payables [abstract] | ||||||
| Current trade payables |
416,000
EUR
|
— |
496,000
EUR
|
— | — | — |
| Other current payables |
926,000
EUR
|
— |
1,179
EUR
|
— | — | — |
| Miscellaneous non-current liabilities [abstract] | ||||||
| Other non-current liabilities |
113,000
EUR
|
— |
126,000
EUR
|
— | — | — |
| Issued capital [abstract] | ||||||
| Issued capital |
28,094
EUR
|
— |
28,094
EUR
|
— | — | — |
| Retained earnings [abstract] | ||||||
| Retained earnings, profit (loss) for reporting period |
1,291
EUR
|
— |
2,021
EUR
|
— | — | — |
| Net assets (liabilities) [abstract] | ||||||
| Assets |
79,897
EUR
|
— |
80,184
EUR
|
— | — | — |
| Net current assets (liabilities) [abstract] | ||||||
| Current assets |
35,627
EUR
|
— |
29,631
EUR
|
— | — | — |
| Current liabilities |
3,416
EUR
|
— |
3,893
EUR
|
— | — | — |
| Assets less current liabilities [abstract] |