Statement Of Cash Flows [Abstract]
| Concept |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Interest received, classified as operating activities | — |
93,000
EUR
|
1,333,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
17,802,000
EUR
|
30,728,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Purchase of property, plant and equipment, classified as investing activities | — |
38,235,000
EUR
|
4,003,000
EUR
|
— | — |
| Purchase of intangible assets, classified as investing activities | — |
15,100,000
EUR
|
10,739,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
40,257,000
EUR
|
33,400,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from issuing shares | — |
63,381,000
EUR
|
49,148,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
2,362,000
EUR
|
2,456,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
50,286,000
EUR
|
102,442,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
27,832,000
EUR
|
38,314,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
0
EUR
|
0
EUR
|
— | — |
| Cash and cash equivalents |
90,485,000
EUR
|
— | — |
62,653,000
EUR
|
24,338,000
EUR
|