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 | — |
2,768,000
EUR
|
— |
7,729,000
EUR
|
— |
8,817,000
EUR
|
5,504,000
EUR
|
— | — | — |
| Interest paid, classified as operating activities | — |
321,000
EUR
|
— |
687,000
EUR
|
— |
908,000
EUR
|
477,000
EUR
|
— | — | — |
| Income taxes paid (refund), classified as operating activities | — |
-
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
| Cash flows from (used in) operating activities | — |
2,447,000
EUR
|
— |
7,042,000
EUR
|
— |
7,909,000
EUR
|
5,027,000
EUR
|
— | — | — |
| Cash flows from (used in) investing activities [abstract] | ||||||||||
| Cash flows used in obtaining control of subsidiaries or other businesses, classified as investing activities | — |
271,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
| Proceeds from sales of property, plant and equipment, classified as investing activities | — |
341,000
EUR
|
— |
400,000
EUR
|
— |
70,000
EUR
|
13,000
EUR
|
— | — | — |
| Purchase of property, plant and equipment, classified as investing activities | — |
750,000
EUR
|
— |
1,474,000
EUR
|
— |
2,121,000
EUR
|
1,113,000
EUR
|
— | — | — |
| Purchase of intangible assets, classified as investing activities | — |
7,000
EUR
|
— |
17,000
EUR
|
— |
12,000
EUR
|
12,000
EUR
|
— | — | — |
| Proceeds from government grants, classified as investing activities | — |
-
EUR
|
— |
51,000
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
| Cash advances and loans made to other parties, classified as investing activities | — |
2,955,000
EUR
|
— |
2,125,000
EUR
|
— |
210,000
EUR
|
210,000
EUR
|
— | — | — |
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities | — |
1,044,000
EUR
|
— |
1,044,000
EUR
|
— |
70,000
EUR
|
74,000
EUR
|
— | — | — |
| Dividends received, classified as investing activities | — |
2,571,000
EUR
|
— |
-
EUR
|
— |
-
EUR
|
-
EUR
|
— | — | — |
| Cash flows from (used in) investing activities | — |
27,000
EUR
|
— |
2,392,000
EUR
|
— |
2,203,000
EUR
|
1,248,000
EUR
|
— | — | — |
| Cash flows from (used in) financing activities [abstract] | ||||||||||
| Proceeds from borrowings, classified as financing activities | — |
1,951,000
EUR
|
— |
4,475,000
EUR
|
— |
7,887,000
EUR
|
6,199,000
EUR
|
— | — | — |
| Repayments of borrowings, classified as financing activities | — |
2,500,000
EUR
|
— |
7,058,000
EUR
|
— |
13,303,000
EUR
|
9,664,000
EUR
|
— | — | — |
| Payments of lease liabilities, classified as financing activities | — |
533,000
EUR
|
— |
535,000
EUR
|
— |
407,000
EUR
|
390,000
EUR
|
— | — | — |
| Dividends paid, classified as financing activities | — |
914,000
EUR
|
— |
914,000
EUR
|
— | — |
-
EUR
|
— | — | — |
| Cash flows from (used in) financing activities | — |
1,996,000
EUR
|
— |
4,032,000
EUR
|
— |
5,823,000
EUR
|
3,855,000
EUR
|
— | — | — |
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — |
424,000
EUR
|
— |
618,000
EUR
|
— |
117,000
EUR
|
76,000
EUR
|
— | — | — |
| Cash and cash equivalents |
799,000
EUR
|
— |
579,000
EUR
|
— |
181,000
EUR
|
— | — |
155,000
EUR
|
231,000
EUR
|
298,000
EUR
|