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 |
234,971,000
EUR
|
164,121,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
3,271,000
EUR
|
2,323,000
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 |
—
EUR
|
—
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Other non-current assets |
189,000
EUR
|
—
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
14,244,000
EUR
|
12,390,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
1,317,000
EUR
|
1,368,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
23,898,000
EUR
|
35,216,000
EUR
|
64,870,000
EUR
|
| Classes of other provisions [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Non-current provision for decommissioning, restoration and rehabilitation costs |
3,022,000
EUR
|
1,581,000
EUR
|
— |
| Other provisions [abstract] | |||
| Other provisions |
123,000
EUR
|
323,000
EUR
|
— |
| Borrowings [abstract] | |||
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
110,511,000
EUR
|
—
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Non-current portion of non-current loans received |
—
EUR
|
12,603,000
EUR
|
— |
| Non-current portion of other non-current borrowings |
7,523,000
EUR
|
86,602,000
EUR
|
— |
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||
| Current loans received and current portion of non-current loans received |
13,436,000
EUR
|
—
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 contract liabilities [abstract] | |||
| Non-current contract liabilities |
600,000
EUR
|
—
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
37,020,000
EUR
|
48,625,000
EUR
|
— |
| Categories of non-current financial liabilities [abstract] | |||
| Non-current financial liabilities |
—
EUR
|
13,609,000
EUR
|
— |
| Categories of current financial liabilities [abstract] | |||
| Current financial liabilities |
7,593,000
EUR
|
—
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Other non-current liabilities |
859,000
EUR
|
—
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
8,611,000
EUR
|
4,321,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
262,910,000
EUR
|
236,078,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
288,626,000
EUR
|
228,487,000
EUR
|
— |
| Liabilities |
190,841,000
EUR
|
174,624,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
42,375,000
EUR
|
54,265,000
EUR
|
— |
| Current liabilities |
171,129,000
EUR
|
52,728,000
EUR
|
— |
| Assets less current liabilities [abstract] |