Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
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 |
91,507,000
EUR
|
96,553,000
EUR
|
| Intangible assets and goodwill [abstract] | ||
| Intangible assets other than goodwill [abstract] | ||
| Intangible assets other than goodwill |
9,572,000
EUR
|
8,626,000
EUR
|
| Goodwill |
2,391,000
EUR
|
2,391,000
EUR
|
| Investment property [abstract] | ||
| Investment property |
3,256,000
EUR
|
2,961,000
EUR
|
| Investments accounted for using equity method [abstract] | ||
| Investments in associates accounted for using equity method |
11,872,000
EUR
|
12,473,000
EUR
|
| Trade and other current receivables [abstract] | ||
| Current trade receivables |
21,534,000
EUR
|
14,974,000
EUR
|
| Current prepayments and current accrued income other than current contract assets [abstract] | ||
| Current prepayments [abstract] | ||
| Current prepaid expenses |
660,000
EUR
|
460,000
EUR
|
| Other current receivables |
6,092,000
EUR
|
4,102,000
EUR
|
| Current prepayments and current accrued income including current contract assets [abstract] | ||
| Current accrued income including current contract assets [abstract] | ||
| Current accrued income including current contract assets |
403,000
EUR
|
954,000
EUR
|
| Classes of current inventories [abstract] | ||
| Current inventories |
32,288,000
EUR
|
29,246,000
EUR
|
| Classes of current inventories, alternative [abstract] | ||
| Cash and cash equivalents [abstract] | ||
| Cash and cash equivalents |
4,042,000
EUR
|
4,048,000
EUR
|
| Non-current portion of non-current borrowings, by type [abstract] | ||
| Non-current portion of non-current loans received |
30,566,000
EUR
|
23,857,000
EUR
|
| Current borrowings and current portion of non-current borrowings, by type [abstract] | ||
| Current loans received and current portion of non-current loans received |
19,359,000
EUR
|
17,992,000
EUR
|
| 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 deferred income other than non-current contract liabilities |
37,000
EUR
|
75,000
EUR
|
| Trade and other current payables [abstract] | ||
| Current trade payables |
20,977,000
EUR
|
17,453,000
EUR
|
| 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 |
10,339,000
EUR
|
10,508,000
EUR
|
| Other current payables |
4,570,000
EUR
|
3,305,000
EUR
|
| Issued capital [abstract] | ||
| Issued capital |
54,595,000
EUR
|
55,738,000
EUR
|
| Retained earnings [abstract] | ||
| Retained earnings |
18,668,000
EUR
|
19,231,000
EUR
|
| Net assets (liabilities) [abstract] | ||
| Assets |
189,136,000
EUR
|
181,350,000
EUR
|
| Liabilities |
90,672,000
EUR
|
77,552,000
EUR
|
| Net current assets (liabilities) [abstract] | ||
| Current assets |
65,019,000
EUR
|
53,784,000
EUR
|
| Current liabilities |
57,171,000
EUR
|
51,479,000
EUR
|
| Assets less current liabilities [abstract] |