Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-01-01 |
As at 2023-12-31 |
As at 2023-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
53,926
EUR
|
— |
50,227
EUR
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets and goodwill |
5,136
EUR
|
— |
4,771
EUR
|
— |
| Investments accounted for using equity method [abstract] | ||||
| Investments in joint ventures accounted for using equity method |
3,392
EUR
|
— |
0
EUR
|
— |
| Trade and other receivables [abstract] | ||||
| Trade receivables |
16,822
EUR
|
— |
14,506
EUR
|
— |
| Prepayments and accrued income including contract assets [abstract] | ||||
| Accrued income including contract assets [abstract] | ||||
| Contract assets |
4,560
EUR
|
— |
8,225
EUR
|
— |
| Categories of financial assets [abstract] | ||||
| Financial assets |
474,000
EUR
|
— |
483,000
EUR
|
— |
| Classes of current inventories [abstract] | ||||
| Current inventories |
26,358
EUR
|
— |
29,035
EUR
|
— |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
9,000
EUR
|
22,001
EUR
|
22,001
EUR
|
22,398
EUR
|
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
42,700
EUR
|
— |
40,565
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current portion of non-current borrowings |
3,458
EUR
|
— |
5,519
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | ||||
| 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 |
21,375
EUR
|
— |
29,128
EUR
|
— |
| Trade and other payables [abstract] | ||||
| Trade payables |
7,885
EUR
|
— |
10,402
EUR
|
— |
| Accruals and deferred income including contract liabilities [abstract] | ||||
| Deferred income including contract liabilities [abstract] | ||||
| Contract liabilities [abstract] | ||||
| Contract liabilities |
1,898
EUR
|
— |
3,069
EUR
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
10,905
EUR
|
— |
10,905
EUR
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
46,116
EUR
|
— |
49,007
EUR
|
— |
| Accumulated other comprehensive income [abstract] | ||||
| Reserve of exchange differences on translation |
3,216
EUR
|
— |
2,812
EUR
|
— |
| Miscellaneous equity [abstract] | ||||
| Additional paid-in capital |
1,118
EUR
|
— |
1,118
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
124,581
EUR
|
— |
134,186
EUR
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
61,537
EUR
|
— |
77,830
EUR
|
— |
| Assets less current liabilities [abstract] |