Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||||
| Property, plant and equipment [abstract] | ||||||
| Property, plant and equipment |
7 ,021
EUR
|
6 ,822
EUR
|
5,607,000
EUR
|
5,261,000
EUR
|
— | — |
| Intangible assets and goodwill [abstract] | ||||||
| Intangible assets other than goodwill [abstract] | ||||||
| Intangible assets other than goodwill |
6 ,072
EUR
|
3 ,979
EUR
|
7,149,000
EUR
|
2,793,000
EUR
|
— | — |
| Goodwill |
8, 905
EUR
|
3 ,902
EUR
|
8,905,000
EUR
|
2,321,000
EUR
|
— | — |
| Investments accounted for using equity method [abstract] | ||||||
| Investments accounted for using equity method |
260,000
EUR
|
266,000
EUR
|
262,000
EUR
|
266,000
EUR
|
— | — |
| Miscellaneous non-current assets [abstract] | ||||||
| Other non-current assets |
83,000
EUR
|
67,000
EUR
|
213,000
EUR
|
112,000
EUR
|
— | — |
| Trade and other current receivables [abstract] | ||||||
| Trade and other current receivables |
29,768,000
EUR
|
20,693,000
EUR
|
31,519,000
EUR
|
17,802,000
EUR
|
— | — |
| Categories of current financial assets [abstract] | ||||||
| Current financial assets at amortised cost |
540,000
EUR
|
112,000
EUR
|
436,000
EUR
|
74,000
EUR
|
— | — |
| Classes of current inventories [abstract] | ||||||
| Current inventories |
280,000
EUR
|
278,000
EUR
|
275,000
EUR
|
261,000
EUR
|
— | — |
| Classes of current inventories, alternative [abstract] | ||||||
| Cash and cash equivalents [abstract] | ||||||
| Cash and cash equivalents |
24,368,000
EUR
|
8,994,000
EUR
|
14,379,000
EUR
|
4,832,000
EUR
|
18,814,000
EUR
|
14,212,000
EUR
|
| Miscellaneous assets [abstract] | ||||||
| Investments other than investments accounted for using equity method |
-
EUR
|
12,441,000
EUR
|
-
EUR
|
16,808,000
EUR
|
— | — |
| Borrowings [abstract] | ||||||
| Non-current portion of non-current borrowings |
-
EUR
|
-
EUR
|
33,000
EUR
|
33,000
EUR
|
— | — |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||||
| Current borrowings and current portion of non-current borrowings |
5 ,522
EUR
|
5, 522
EUR
|
2,073,000
EUR
|
2,073,000
EUR
|
— | — |
| Non-current portion of non-current borrowings, by type [abstract] | ||||||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | ||||||
| Trade and other non-current payables [abstract] | ||||||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | ||||||
| Non-current deferred income including non-current contract liabilities [abstract] | ||||||
| Non-current contract liabilities [abstract] | ||||||
| Non-current contract liabilities |
106,000
EUR
|
106,000
EUR
|
1,798,000
EUR
|
1,798,000
EUR
|
— | — |
| Trade and other non-current payables |
-
EUR
|
-
EUR
|
150,000
EUR
|
-
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 |
2 ,255
EUR
|
2 ,255
EUR
|
1,899,000
EUR
|
1,899,000
EUR
|
— | — |
| Trade and other current payables |
33,116,000
EUR
|
17,263,000
EUR
|
28,930,000
EUR
|
13,971,000
EUR
|
— | — |
| Trade and other payables [abstract] | ||||||
| Accruals and deferred income including contract liabilities [abstract] | ||||||
| Deferred income including contract liabilities [abstract] | ||||||
| Deferred income other than contract liabilities |
2,714,000
EUR
|
2 ,618
EUR
|
4,489,000
EUR
|
4,299,000
EUR
|
— | — |
| Issued capital [abstract] | ||||||
| Issued capital |
3 ,920
EUR
|
3 ,920
EUR
|
3,920,000
EUR
|
3,920,000
EUR
|
— | — |
| Retained earnings [abstract] | ||||||
| Retained earnings |
16,763,000
EUR
|
12,415,000
EUR
|
13,248,000
EUR
|
10,107,000
EUR
|
— | — |
| Accumulated other comprehensive income [abstract] | ||||||
| Revaluation surplus |
3 ,130
EUR
|
3 ,130
EUR
|
1,877,000
EUR
|
1,877,000
EUR
|
— | — |
| Reserve of exchange differences on translation |
220,000
EUR
|
-
EUR
|
238,000
EUR
|
-
EUR
|
— | — |
| Miscellaneous equity [abstract] | ||||||
| Capital redemption reserve |
53,000
EUR
|
-
EUR
|
624,000
EUR
|
571,000
EUR
|
— | — |
| Capital reserve |
8,802,000
EUR
|
9 ,006
EUR
|
9,919,000
EUR
|
9,919,000
EUR
|
— | — |
| Net assets (liabilities) [abstract] | ||||||
| Assets |
81,177,000
EUR
|
61,034,000
EUR
|
72,261,000
EUR
|
52,984,000
EUR
|
— | — |
| Liabilities |
47,323,000
EUR
|
31,194,000
EUR
|
41,838,000
EUR
|
25,902,000
EUR
|
— | — |
| Net current assets (liabilities) [abstract] | ||||||
| Current assets |
54,956,000
EUR
|
30,077,000
EUR
|
46,609,000
EUR
|
22,969,000
EUR
|
— | — |
| Current liabilities |
44,910,000
EUR
|
28,817,000
EUR
|
38,329,000
EUR
|
22,907,000
EUR
|
— | — |
| Assets less current liabilities [abstract] |