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 |
23,324,000
EUR
|
25,198,000
EUR
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
1,835,000
EUR
|
559,000
EUR
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
6,888,000
EUR
|
7,333,000
EUR
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
1,238,000
EUR
|
1,225,000
EUR
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
34,911,000
EUR
|
26,626,000
EUR
|
45,443,000
EUR
|
| Trade and other current payables [abstract] | |||
| Trade and other current payables |
16,750,000
EUR
|
13,894,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current accrued expenses and other current liabilities |
196,000
EUR
|
145,000
EUR
|
— |
| Issued capital [abstract] | |||
| Issued capital |
3,129,000
EUR
|
2,591,000
EUR
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
195,291,000
EUR
|
171,057,000
EUR
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
77,675,000
EUR
|
69,983,000
EUR
|
— |
| Liabilities |
27,649,000
EUR
|
23,745,000
EUR
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
43,037,000
EUR
|
35,184,000
EUR
|
— |
| Current liabilities |
18,550,000
EUR
|
15,742,000
EUR
|
— |
| Assets less current liabilities [abstract] |