Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-12-31 |
As at 2023-12-31 |
As at 2022-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
33,713,000
EUR
|
33,989,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
72,000
EUR
|
33,000
EUR
|
— |
| Investment property [abstract] | |||
| Investment property |
481,000
EUR
|
481,000
EUR
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||
| Investments in associates reported in separate financial statements |
9,079,000
EUR
|
8,604,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
8,995,000
EUR
|
9,709,000
EUR
|
— |
| Trade and other receivables [abstract] | |||
| Trade receivables |
-
EUR
|
2,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets |
1,799,000
EUR
|
1,664,000
EUR
|
— |
| Categories of current financial assets [abstract] | |||
| Current financial assets |
80,000
EUR
|
625,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
25,602,000
EUR
|
26,382,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
28,833,000
EUR
|
23,754,000
EUR
|
11,740,000
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 or as held for distribution to owners |
184,000
EUR
|
-
EUR
|
— |
| Borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings |
4,177,000
EUR
|
4,187,000
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Non-current portion of other non-current borrowings |
-
EUR
|
-
EUR
|
— |
| Current borrowings and 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 advances received, representing current contract liabilities for performance obligations satisfied at point in time |
64,000
EUR
|
43,000
EUR
|
— |
| Accruals classified as current | — | — | — |
| Short-term employee benefits accruals |
2,078,000
EUR
|
1,838,000
EUR
|
— |
| Current payables on social security and taxes other than income tax |
2,409,000
EUR
|
2,949,000
EUR
|
— |
| Trade and other payables [abstract] | |||
| Trade payables |
10,164,000
EUR
|
12,391,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current dividend payables |
29,000
EUR
|
32,000
EUR
|
— |
| Other current liabilities |
530,000
EUR
|
388,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
13,657,000
EUR
|
13,657,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
71,615,000
EUR
|
65,766,000
EUR
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of gains and losses on financial assets measured at fair value through other comprehensive income |
2,990,000
EUR
|
2,869,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
113,231,000
EUR
|
109,845,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
63,693,000
EUR
|
60,470,000
EUR
|
— |
| Current liabilities |
21,518,000
EUR
|
23,707,000
EUR
|
— |
| Assets less current liabilities [abstract] |