Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
4,801
EUR
|
6,205
EUR
|
7,141
EUR
|
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
173,000
EUR
|
211,000
EUR
|
328,000
EUR
|
| Goodwill |
38,913
EUR
|
43,037
EUR
|
55,021
EUR
|
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
-
EUR
|
259,000
EUR
|
287,000
EUR
|
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
13,868
EUR
|
14,538
EUR
|
17,145
EUR
|
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current accrued income other than current contract assets |
1,894
EUR
|
1,625
EUR
|
3,612
EUR
|
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Categories of current financial assets [abstract] | |||
| Current financial assets at fair value through other comprehensive income [abstract] | |||
| Current financial assets measured at fair value through other comprehensive income |
-
EUR
|
1,088
EUR
|
1,633
EUR
|
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
4,007
EUR
|
7,814
EUR
|
2,115
EUR
|
| Miscellaneous current assets [abstract] | |||
| Other current assets |
3,453
EUR
|
2,509
EUR
|
1,892
EUR
|
| Borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
4,500
EUR
|
8,000
EUR
|
3,418
EUR
|
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
16,157
EUR
|
— | — |
| Trade and other current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current contract liabilities [abstract] | |||
| Current contract liabilities |
6,624
EUR
|
6,078
EUR
|
5,218
EUR
|
| Trade and other payables [abstract] | |||
| Trade payables |
9,667
EUR
|
10,659
EUR
|
11,941
EUR
|
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities | — |
19,307
EUR
|
21,262
EUR
|
| Miscellaneous current liabilities [abstract] | |||
| Other current liabilities |
3,796
EUR
|
4,260
EUR
|
4,612
EUR
|
| Issued capital [abstract] | |||
| Issued capital |
13,500
EUR
|
13,500
EUR
|
13,500
EUR
|
| Retained earnings [abstract] | |||
| Retained earnings |
7,783
EUR
|
7,338
EUR
|
17,605
EUR
|
| Accumulated other comprehensive income [abstract] | |||
| Accumulated other comprehensive income |
2,123
EUR
|
3,080
EUR
|
2,191
EUR
|
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
20,728
EUR
|
27,058
EUR
|
27,058
EUR
|
| Net assets (liabilities) [abstract] | |||
| Assets |
87,302
EUR
|
99,211
EUR
|
113,332
EUR
|
| Net current assets (liabilities) [abstract] | |||
| Current assets |
24,182
EUR
|
27,574
EUR
|
26,397
EUR
|
| Current liabilities |
29,606
EUR
|
33,714
EUR
|
32,379
EUR
|
| Assets less current liabilities [abstract] |