Statement Of Cash Flows [Abstract]
| Concept |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | ||||||||||
| Cash flows from (used in) operating activities [abstract] | ||||||||||
| Cash flows from (used in) operations | — |
56,000
EUR
|
— |
375,000
EUR
|
— |
548,000
EUR
|
31,000
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — |
77,000
EUR
|
— |
318,000
EUR
|
— |
467,000
EUR
|
53,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||
| Interest received, classified as investing activities | — |
135,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
153,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities | — |
549,000
EUR
|
— |
-
EUR
|
— |
38,000
EUR
|
383,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||
| Cash flows from (used in) financing activities | — |
476,000
EUR
|
— |
476,000
EUR
|
— |
316,000
EUR
|
316,000
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
4,000
EUR
|
— |
158,000
EUR
|
— |
189,000
EUR
|
14,000
EUR
|
— | — | — |
| Cash and cash equivalents |
144,000
EUR
|
— |
27,000
EUR
|
— |
302,000
EUR
|
— | — |
31,000
EUR
|
17,000
EUR
|
113,000
EUR
|