Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||
| Cash flows from (used in) operating activities [abstract] | |||||
| Income taxes paid (refund), classified as operating activities | — |
1,971,000
EUR
|
— |
35,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
4,866
EUR
|
— |
6,885
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Cash flows from (used in) investing activities | — |
9,188,000
EUR
|
— |
3,964
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Proceeds from borrowings, classified as financing activities | — |
1,800
EUR
|
— |
8,000
EUR
|
— |
| Payments of lease liabilities, classified as financing activities | — |
231,000
EUR
|
— |
787,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
2,380
EUR
|
— |
8,006
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
346,000
EUR
|
— |
22,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
3,405
EUR
|
— |
2,813
EUR
|
— |
| Cash and cash equivalents |
5,802
EUR
|
— |
9,207
EUR
|
— |
12,020
EUR
|