Statement Of Changes In Equity [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||
| Statement of changes in equity [line items] | |||||||||||
| Increase (decrease) through disposal of subsidiary, equity |
11,000
EUR
|
— | — |
-
EUR
|
11,000
EUR
|
— | — | — | — | — | — |
| Increase (decrease) through transfer between revaluation surplus and retained earnings, equity | — | — |
708,000
EUR
|
775,000
EUR
|
775,000
EUR
|
67,000
EUR
|
541,000
EUR
|
-
EUR
|
541,000
EUR
|
-
EUR
|
— |
| Increase (decrease) through exercise of options, equity | — | — | — |
661,000
EUR
|
661,000
EUR
|
661,000
EUR
|
— |
287,000
EUR
|
287,000
EUR
|
287,000
EUR
|
— |
| Cancellation of treasury shares | — |
2 050
EUR
|
— |
-
EUR
|
-
EUR
|
2 050
EUR
|
— |
-
EUR
|
2 628
EUR
|
-
EUR
|
2 628
EUR
|