Statement Of Financial Position [Abstract]
| Concept |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||
| Assets [abstract] | |||||||||||||||
| Non-current assets [abstract] | |||||||||||||||
| Property, plant and equipment |
23,324,000
EUR
|
— | — | — | — |
25,198,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Right-of-use assets |
9,479,000
EUR
|
— | — | — | — |
9,042,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
1,835,000
EUR
|
— | — | — | — |
559,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Non-current assets |
34,638,000
EUR
|
— | — | — | — |
34,799,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||
| Current inventories |
1,238,000
EUR
|
— | — | — | — |
1,225,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Trade and other current receivables |
6,888,000
EUR
|
— | — | — | — |
7,333,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
34,911,000
EUR
|
— | — | — | — |
26,626,000
EUR
|
— | — | — | — | — | — |
45,443,000
EUR
|
— | — |
| Current assets |
43,037,000
EUR
|
— | — | — | — |
35,184,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Assets |
77,675,000
EUR
|
— | — | — | — |
69,983,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||
| Equity [abstract] | |||||||||||||||
| Issued capital |
3,129,000
EUR
|
— | — | — | — |
2,591,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Retained earnings |
195,291,000
EUR
|
— | — | — | — |
171,057,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Share premium |
230,252,000
EUR
|
— | — | — | — |
204,296,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Other reserves |
11,936,000
EUR
|
— | — | — | — |
10,407,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity attributable to owners of parent |
50,026,000
EUR
|
— | — | — | — |
46,238,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity |
50,026,000
EUR
|
195,291,000
EUR
|
11,936,000
EUR
|
230,252,000
EUR
|
3,129,000
EUR
|
46,238,000
EUR
|
2,591,000
EUR
|
171,057,000
EUR
|
10,407,000
EUR
|
204,296,000
EUR
|
148,527,000
EUR
|
9,863,000
EUR
|
68,215,000
EUR
|
204,296,000
EUR
|
2,583,000
EUR
|
| Liabilities [abstract] | |||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||
| Non-current liabilities |
9,099,000
EUR
|
— | — | — | — |
8,003,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||
| Trade and other current payables |
16,750,000
EUR
|
— | — | — | — |
13,894,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Current liabilities |
18,550,000
EUR
|
— | — | — | — |
15,742,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Liabilities |
27,649,000
EUR
|
— | — | — | — |
23,745,000
EUR
|
— | — | — | — | — | — | — | — | — |
| Equity and liabilities |
77,675,000
EUR
|
— | — | — | — |
69,983,000
EUR
|
— | — | — | — | — | — | — | — | — |