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] | |||||
| Classes of cash receipts from operating activities [abstract] | |||||
| Receipts from sales of goods and rendering of services | — |
345,552,000
EUR
|
277,941,000
EUR
|
— | — |
| Classes of cash payments from operating activities [abstract] | |||||
| Payments to suppliers for goods and services | — |
305,500,000
EUR
|
239,873,000
EUR
|
— | — |
| Payments to and on behalf of employees | — |
27,409,000
EUR
|
22,741,000
EUR
|
— | — |
| Income taxes paid (refund), classified as operating activities | — |
291,000
EUR
|
508,000
EUR
|
— | — |
| Cash flows from (used in) operating activities | — |
2,443,000
EUR
|
8,003,000
EUR
|
— | — |
| Cash flows from (used in) investing activities [abstract] | |||||
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
332,000
EUR
|
377,000
EUR
|
— | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
254,000
EUR
|
594,000
EUR
|
— | — |
| Purchase of intangible assets, classified as investing activities | — |
17,000
EUR
|
0
EUR
|
— | — |
| Cash advances and loans made to other parties, classified as investing activities | — |
17,000
EUR
|
74,000
EUR
|
— | — |
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities | — |
44,000
EUR
|
13,000
EUR
|
— | — |
| Dividends received, classified as investing activities | — |
974,000
EUR
|
489,000
EUR
|
— | — |
| Interest received, classified as investing activities | — |
23,000
EUR
|
9,000
EUR
|
— | — |
| Cash flows from (used in) investing activities | — |
8,286,000
EUR
|
220,000
EUR
|
— | — |
| Cash flows from (used in) financing activities [abstract] | |||||
| Payments to acquire or redeem entity's shares | — |
0
EUR
|
1,892,000
EUR
|
— | — |
| Proceeds from borrowings, classified as financing activities | — |
2,026,000
EUR
|
3,705,000
EUR
|
— | — |
| Repayments of borrowings, classified as financing activities | — |
2,629,000
EUR
|
4,032,000
EUR
|
— | — |
| Payments of lease liabilities, classified as financing activities | — |
3,086,000
EUR
|
3,276,000
EUR
|
— | — |
| Dividends paid, classified as financing activities | — |
472,000
EUR
|
2,360,000
EUR
|
— | — |
| Interest paid, classified as financing activities | — |
927,000
EUR
|
1,004,000
EUR
|
— | — |
| Other inflows (outflows) of cash, classified as financing activities | — |
77,000
EUR
|
2,000
EUR
|
— | — |
| Cash flows from (used in) financing activities | — |
5,165,000
EUR
|
8,861,000
EUR
|
— | — |
| Increase (decrease) in cash and cash equivalents before effect of exchange rate changes | — |
5,564,000
EUR
|
638,000
EUR
|
— | — |
| Effect of exchange rate changes on cash and cash equivalents [abstract] | |||||
| Effect of exchange rate changes on cash and cash equivalents | — |
20,000
EUR
|
8,000
EUR
|
— | — |
| Cash and cash equivalents |
12,576,000
EUR
|
— | — |
7,032,000
EUR
|
7,678,000
EUR
|