Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2873-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 1330-12-31 |
As at 1330-12-31 |
|---|---|---|---|---|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||||||||
| Property, plant and equipment [abstract] | |||||||||
| Property, plant and equipment | — |
1,164
EUR
|
1,156
EUR
|
1,255
EUR
|
1,246
EUR
|
— | — | — | — |
| Intangible assets and goodwill [abstract] | |||||||||
| Intangible assets other than goodwill [abstract] | |||||||||
| Intangible assets other than goodwill | — |
89,000
EUR
|
89,000
EUR
|
77,000
EUR
|
77,000
EUR
|
— | — | — | — |
| Investment property [abstract] | |||||||||
| Investment property | — |
374,000
EUR
|
374,000
EUR
|
374,000
EUR
|
374,000
EUR
|
— | — | — | — |
| Investments in subsidiaries, joint ventures and associates reported in separate financial statements [abstract] | |||||||||
| Investments in subsidiaries reported in separate financial statements | — |
-
EUR
|
3,000
EUR
|
-
EUR
|
3,000
EUR
|
— | — | — | — |
| Trade and other current receivables [abstract] | |||||||||
| Current prepayments and current accrued income other than current contract assets [abstract] | |||||||||
| Current prepayments [abstract] | |||||||||
| Current prepayments | — |
805,000
EUR
|
804,000
EUR
|
268,000
EUR
|
261,000
EUR
|
— | — | — | — |
| Other current receivables | — |
147,000
EUR
|
139,000
EUR
|
117,000
EUR
|
84,000
EUR
|
— | — | — | — |
| Trade and other current receivables | — |
1,154
EUR
|
1,154
EUR
|
1,041
EUR
|
1,041
EUR
|
— | — | — | — |
| Current prepayments and current accrued income including current contract assets [abstract] | |||||||||
| Categories of current financial assets [abstract] | |||||||||
| Current loans and receivables | — |
1,424
EUR
|
1,424
EUR
|
-
EUR
|
-
EUR
|
— | — | — | — |
| Classes of current inventories [abstract] | |||||||||
| Current inventories | — |
5,105
EUR
|
5,103
EUR
|
4,204
EUR
|
4,231
EUR
|
— | — | — | — |
| Classes of current inventories, alternative [abstract] | |||||||||
| Cash and cash equivalents [abstract] | |||||||||
| Cash and cash equivalents |
2,136
EUR
|
2,136
EUR
|
2,084
EUR
|
2,873
EUR
|
2,867
EUR
|
371,000
EUR
|
381,000
EUR
|
2,873
EUR
|
2,867
EUR
|
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] | |||||||||
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — |
-
EUR
|
-
EUR
|
60,000
EUR
|
60,000
EUR
|
— | — | — | — |
| Borrowings [abstract] | |||||||||
| Non-current portion of non-current borrowings | — |
1,080
EUR
|
1,080
EUR
|
1,330
EUR
|
1,330
EUR
|
— | — | — | — |
| Current borrowings and current portion of non-current borrowings [abstract] | |||||||||
| Current borrowings and current portion of non-current borrowings | — |
-
EUR
|
-
EUR
|
133,000
EUR
|
133,000
EUR
|
— | — | — | — |
| Non-current portion of non-current borrowings, by type [abstract] | |||||||||
| Current borrowings and current portion of non-current borrowings, by type [abstract] | |||||||||
| Trade and other current payables [abstract] | |||||||||
| Current trade payables | — |
450,000
EUR
|
298,000
EUR
|
1,042
EUR
|
926,000
EUR
|
— | — | — | — |
| Current payables to related parties | — |
443,000
EUR
|
795,000
EUR
|
17,000
EUR
|
411,000
EUR
|
— | — | — | — |
| Current accruals and current deferred income including current contract liabilities [abstract] | |||||||||
| Current deferred income including current contract liabilities [abstract] | |||||||||
| Current contract liabilities [abstract] | |||||||||
| Current contract liabilities | — |
24,000
EUR
|
24,000
EUR
|
66,000
EUR
|
66,000
EUR
|
— | — | — | — |
| Accruals classified as current | — |
11,000
EUR
|
40,000
EUR
|
10,000
EUR
|
7,000
EUR
|
— | — | — | — |
| Miscellaneous non-current liabilities [abstract] | |||||||||
| Other non-current liabilities | — |
-
EUR
|
-
EUR
|
50,000
EUR
|
-
EUR
|
— | — | — | — |
| Miscellaneous current liabilities [abstract] | |||||||||
| Other current liabilities | — |
123,000
EUR
|
62,000
EUR
|
152,000
EUR
|
70,000
EUR
|
— | — | — | — |
| Issued capital [abstract] | |||||||||
| Issued capital | — |
6,971
EUR
|
6,971
EUR
|
6,971
EUR
|
6,971
EUR
|
— | — | — | — |
| Retained earnings [abstract] | |||||||||
| Retained earnings | — |
2,607
EUR
|
2,531
EUR
|
1,578
EUR
|
1,491
EUR
|
— | — | — | — |
| Net assets (liabilities) [abstract] | |||||||||
| Assets | — |
12,771
EUR
|
12,642
EUR
|
12,034
EUR
|
11,896
EUR
|
— | — | — | — |
| Net current assets (liabilities) [abstract] | |||||||||
| Current assets | — |
10,771
EUR
|
10,708
EUR
|
8,563
EUR
|
8,544
EUR
|
— | — | — | — |
| Current liabilities | — |
1,500
EUR
|
1,466
EUR
|
1,694
EUR
|
1,749
EUR
|
— | — | — | — |
| Assets less current liabilities [abstract] |