Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2022-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
37,600,000
EUR
|
38,200,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
1,200,000
EUR
|
1,800,000
EUR
|
— |
| Goodwill |
400,000
EUR
|
400,000
EUR
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
20,100,000
EUR
|
19,900,000
EUR
|
— |
| Trade and other non-current receivables [abstract] | |||
| Trade and other non-current receivables |
0
EUR
|
0
EUR
|
— |
| Trade and other receivables [abstract] | |||
| Trade and other receivables |
7,500,000
EUR
|
10,800,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
30,100,000
EUR
|
70,800,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
14,800,000
EUR
|
7,500,000
EUR
|
1,100,000
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 |
-
EUR
|
100,000
EUR
|
— |
| Trade and other non-current payables [abstract] | |||
| Trade and other non-current payables |
-
EUR
|
100,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
18,900,000
EUR
|
31,100,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current net defined benefit liability |
200,000
EUR
|
200,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
12,600,000
EUR
|
12,600,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings, profit (loss) for reporting period |
5,200,000
EUR
|
2,400,000
EUR
|
— |
| Retained earnings, excluding profit (loss) for reporting period |
49,700,000
EUR
|
49,700,000
EUR
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
0
EUR
|
0
EUR
|
— |
| Reserve of cash flow hedges |
1,100,000
EUR
|
1,000,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
117,300,000
EUR
|
157,100,000
EUR
|
— |
| Liabilities |
21,300,000
EUR
|
63,800,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
52,400,000
EUR
|
89,100,000
EUR
|
— |
| Current liabilities |
19,800,000
EUR
|
61,500,000
EUR
|
— |
| Assets less current liabilities [abstract] |