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 | — |
5,630,000
EUR
|
— |
4,802,000
EUR
|
— |
| Cash flows from (used in) operating activities | — |
50,622,000
EUR
|
— |
30,316,000
EUR
|
— |
| Cash flows from (used in) investing activities [abstract] | |||||
| Other cash payments to acquire equity or debt instruments of other entities, classified as investing activities | — |
1,167,000
EUR
|
— |
0
EUR
|
— |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
110,000
EUR
|
— |
193,000
EUR
|
— |
| Cash flows from (used in) investing activities | — |
5,751,000
EUR
|
— |
2,348,000
EUR
|
— |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares | — |
2,823,000
EUR
|
— |
1,505,000
EUR
|
— |
| Payments of lease liabilities, classified as financing activities | — |
4,804,000
EUR
|
— |
4,716,000
EUR
|
— |
| Dividends paid, classified as financing activities | — |
13,322,000
EUR
|
— |
13,294,000
EUR
|
— |
| Cash flows from (used in) financing activities | — |
20,949,000
EUR
|
— |
19,515,000
EUR
|
— |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
23,922,000
EUR
|
— |
8,453,000
EUR
|
— |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
154,000
EUR
|
— |
108,000
EUR
|
— |
| Cash and cash equivalents |
73,546,000
EUR
|
— |
49,778,000
EUR
|
— |
41,433,000
EUR
|