Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
166,830,000
EUR
|
167,890,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
5,354,000
EUR
|
4,468,000
EUR
|
— |
| Trade and other non-current receivables [abstract] | |||
| Non-current receivables due from related parties |
5,638,000
EUR
|
5,416,000
EUR
|
— |
| Other non-current receivables |
9,987,000
EUR
|
9,405,000
EUR
|
— |
| Non-current prepayments and non-current accrued income including non-current contract assets [abstract] | |||
| Non-current accrued income including non-current contract assets [abstract] | |||
| Non-current contract assets |
2,576,000
EUR
|
3,021,000
EUR
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current derivative financial assets |
0
EUR
|
2,109,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Current trade receivables |
53,023,000
EUR
|
61,374,000
EUR
|
— |
| Current receivables due from related parties |
18,749,000
EUR
|
18,610,000
EUR
|
— |
| Other current receivables |
36,892,000
EUR
|
24,376,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
90,775,000
EUR
|
105,571,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
114,966,000
EUR
|
92,548,000
EUR
|
75,790,000
EUR
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
0
EUR
|
14,362,000
EUR
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Non-current portion of non-current notes and debentures issued |
70,000,000
EUR
|
70,000,000
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 | — | — | — |
| Non-current government grants |
8,405,000
EUR
|
9,125,000
EUR
|
— |
| Trade and other current payables [abstract] | |||
| Current trade payables |
53,305,000
EUR
|
26,956,000
EUR
|
— |
| Current payables to related parties |
10,237,000
EUR
|
8,479,000
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 |
12,714,000
EUR
|
6,026,000
EUR
|
— |
| Current deferred income other than current contract liabilities | — | — | — |
| Current government grants |
1,124,000
EUR
|
858,000
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current derivative financial liabilities |
1,737,000
EUR
|
0
EUR
|
— |
| Other non-current liabilities |
0
EUR
|
63,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
6,448,000
EUR
|
0
EUR
|
— |
| Other current liabilities |
10,766,000
EUR
|
17,734,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
45,790,000
EUR
|
45,790,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
52,340,000
EUR
|
28,757,000
EUR
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
555,000
EUR
|
954,000
EUR
|
— |
| Miscellaneous equity [abstract] | |||
| Additional paid-in capital |
221,459,000
EUR
|
221,459,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
644,465,000
EUR
|
649,522,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
320,772,000
EUR
|
322,670,000
EUR
|
— |
| Current liabilities |
265,911,000
EUR
|
226,735,000
EUR
|
— |
| Assets less current liabilities [abstract] |