Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-12-31 |
As at 2022-12-31 |
As at 2021-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
164,121,000
EUR
|
60,906,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
2,323,000
EUR
|
1,974,000
EUR
|
— |
| Trade and other non-current receivables [abstract] | |||
| Non-current prepayments and non-current accrued income other than non-current contract assets [abstract] | |||
| Non-current prepayments |
—
EUR
|
15,248,000
EUR
|
— |
| Non-current prepayments and non-current accrued income including non-current contract assets [abstract] | |||
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
12,390,000
EUR
|
9,075,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
1,368,000
EUR
|
1,567,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
35,216,000
EUR
|
64,870,000
EUR
|
34,911,000
EUR
|
| Classes of other provisions [abstract] | |||
| Provision for decommissioning, restoration and rehabilitation costs [abstract] | |||
| Non-current provision for decommissioning, restoration and rehabilitation costs |
1,581,000
EUR
|
—
EUR
|
— |
| Other provisions [abstract] | |||
| Other provisions |
323,000
EUR
|
236,000
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Non-current portion of non-current loans received |
12,603,000
EUR
|
—
EUR
|
— |
| Non-current portion of other non-current borrowings |
86,602,000
EUR
|
12,649,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
48,625,000
EUR
|
31,644,000
EUR
|
— |
| Categories of non-current financial liabilities [abstract] | |||
| Non-current financial liabilities |
13,609,000
EUR
|
14,091,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
4,321,000
EUR
|
4,261,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
236,078,000
EUR
|
205,291,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
228,487,000
EUR
|
163,584,000
EUR
|
— |
| Liabilities |
174,624,000
EUR
|
70,563,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
54,265,000
EUR
|
75,512,000
EUR
|
— |
| Current liabilities |
52,728,000
EUR
|
33,777,000
EUR
|
— |
| Assets less current liabilities [abstract] |