Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2023-01-01 |
As at 2022-12-31 |
As at 2022-01-01 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Property, plant and equipment |
14,352,000
EUR
|
— |
15,543,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets and goodwill |
384,000
EUR
|
— |
90,000
EUR
|
— |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | ||||
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements |
4,000
EUR
|
— |
140,000
EUR
|
— |
| Trade and other current receivables [abstract] | ||||
| Current trade receivables |
17,897,000
EUR
|
— |
15,752,000
EUR
|
— |
| Current receivables due from related parties |
37,893,000
EUR
|
— |
19,174,000
EUR
|
— |
| Current prepayments and current accrued income other than current contract assets [abstract] | ||||
| Current prepayments [abstract] | ||||
| Current prepayments |
2,237,000
EUR
|
— |
1,109,000
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | ||||
| Trade and other receivables [abstract] | ||||
| Other receivables |
1,180,000
EUR
|
— |
2,741,000
EUR
|
— |
| Categories of non-current financial assets [abstract] | ||||
| Non-current loans and receivables |
2,587,000
EUR
|
— |
2,099,000
EUR
|
— |
| Categories of current financial assets [abstract] | ||||
| Current financial assets at fair value through profit or loss [abstract] | ||||
| Current financial assets at fair value through profit or loss |
4,235,000
EUR
|
— |
4,124,000
EUR
|
— |
| Classes of current inventories [abstract] | ||||
| Current inventories |
9,781,000
EUR
|
— |
7,452,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
55,568,000
EUR
|
60,679,000
EUR
|
60,679,000
EUR
|
44,104,000
EUR
|
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
114,000
EUR
|
— |
215,000
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings and current portion of non-current borrowings |
467,000
EUR
|
— |
1,870,000
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 current payables [abstract] | ||||
| Current payables to related parties |
13,907,000
EUR
|
— |
5,969,000
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 contract liabilities |
26,767,000
EUR
|
— |
24,449,000
EUR
|
— |
| Trade and other current payables |
29,559,000
EUR
|
— |
29,442,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | ||||
| Other non-current liabilities |
13,000
EUR
|
— |
-
EUR
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
17,674,000
EUR
|
— |
17,674,000
EUR
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
38,711,000
EUR
|
— |
27,537,000
EUR
|
— |
| Miscellaneous equity [abstract] | ||||
| Statutory reserve |
1,230,000
EUR
|
— |
884,000
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
163,258,000
EUR
|
— |
135,631,000
EUR
|
— |
| Liabilities |
102,742,000
EUR
|
— |
86,451,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
128,791,000
EUR
|
— |
111,031,000
EUR
|
— |
| Current liabilities |
88,555,000
EUR
|
— |
82,248,000
EUR
|
— |
| Assets less current liabilities [abstract] |