Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2021-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2018-12-31 |
|---|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | ||||
| Property, plant and equipment [abstract] | ||||
| Land and buildings [abstract] | ||||
| Land and buildings |
2,129
EUR
|
1,559
EUR
|
2,593
EUR
|
— |
| Machinery |
0
EUR
|
18,000
EUR
|
50,000
EUR
|
— |
| Vehicles [abstract] | ||||
| Vehicles |
760,000
EUR
|
1,145
EUR
|
1,520
EUR
|
— |
| Construction in progress |
0
EUR
|
0
EUR
|
9,000
EUR
|
— |
| Other property, plant and equipment |
802,000
EUR
|
695,000
EUR
|
802,000
EUR
|
— |
| Property, plant and equipment |
3,936
EUR
|
3,648
EUR
|
5,174
EUR
|
— |
| Intangible assets and goodwill [abstract] | ||||
| Intangible assets other than goodwill [abstract] | ||||
| Computer software |
140,000
EUR
|
63,000
EUR
|
50,000
EUR
|
— |
| Other intangible assets |
140,000
EUR
|
63,000
EUR
|
50,000
EUR
|
— |
| Goodwill |
1,649
EUR
|
1,649
EUR
|
1,649
EUR
|
— |
| Intangible assets and goodwill |
1,943
EUR
|
2,145
EUR
|
2,687
EUR
|
— |
| Miscellaneous non-current assets [abstract] | ||||
| Non-current investments other than investments accounted for using equity method | — |
1,000
EUR
|
1,000
EUR
|
— |
| Trade and other current receivables [abstract] | ||||
| Current trade receivables |
2,305
EUR
|
1,909
EUR
|
2,739
EUR
|
— |
| Current prepayments and current accrued income other than current contract assets [abstract] | ||||
| Current prepayments [abstract] | ||||
| Current prepayments |
0
EUR
|
0
EUR
|
0
EUR
|
— |
| Other current receivables |
20,000
EUR
|
19,000
EUR
|
12,000
EUR
|
— |
| Trade and other current receivables |
2,325
EUR
|
1,928
EUR
|
2,751
EUR
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | ||||
| Categories of non-current financial assets [abstract] | ||||
| Non-current financial assets |
180,000
EUR
|
217,000
EUR
|
268,000
EUR
|
— |
| Categories of current financial assets [abstract] | ||||
| Current financial assets |
0
EUR
|
0
EUR
|
0
EUR
|
— |
| Classes of current inventories [abstract] | ||||
| Current inventories |
1,609
EUR
|
1,592
EUR
|
1,866
EUR
|
— |
| Classes of current inventories, alternative [abstract] | ||||
| Cash and cash equivalents [abstract] | ||||
| Cash and cash equivalents |
2,242
EUR
|
2,619
EUR
|
1,240
EUR
|
815,000
EUR
|
| Miscellaneous current assets [abstract] | ||||
| Other current assets |
135,000
EUR
|
226,000
EUR
|
219,000
EUR
|
— |
| Borrowings [abstract] | ||||
| Non-current portion of non-current borrowings |
5,384
EUR
|
4,484
EUR
|
4,074
EUR
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | ||||
| Current borrowings |
0
EUR
|
0
EUR
|
0
EUR
|
— |
| Current portion of non-current borrowings |
3,294
EUR
|
2,138
EUR
|
2,379
EUR
|
— |
| Current borrowings and current portion of non-current borrowings |
4,725
EUR
|
3,713
EUR
|
4,147
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 non-current payables [abstract] | ||||
| Trade and other non-current payables |
0
EUR
|
0
EUR
|
4,000
EUR
|
— |
| Trade and other current payables [abstract] | ||||
| Trade and other current payables |
3,873
EUR
|
3,841
EUR
|
4,354
EUR
|
— |
| Miscellaneous non-current liabilities [abstract] | ||||
| Non-current net defined benefit liability |
521,000
EUR
|
448,000
EUR
|
446,000
EUR
|
— |
| Non-current derivative financial liabilities |
2,000
EUR
|
2,000
EUR
|
2,000
EUR
|
— |
| Other non-current liabilities |
102,000
EUR
|
115,000
EUR
|
128,000
EUR
|
— |
| Miscellaneous current liabilities [abstract] | ||||
| Other current liabilities |
424,000
EUR
|
418,000
EUR
|
399,000
EUR
|
— |
| Issued capital [abstract] | ||||
| Issued capital |
2,159
EUR
|
2,159
EUR
|
1,645
EUR
|
— |
| Retained earnings [abstract] | ||||
| Retained earnings |
2,065
EUR
|
218,000
EUR
|
811,000
EUR
|
— |
| Accumulated other comprehensive income [abstract] | ||||
| Reserve of exchange differences on translation |
5,000
EUR
|
4,000
EUR
|
4,000
EUR
|
— |
| Net assets (liabilities) [abstract] | ||||
| Assets |
15,562
EUR
|
15,471
EUR
|
16,517
EUR
|
— |
| Net current assets (liabilities) [abstract] | ||||
| Current assets |
6,359
EUR
|
6,464
EUR
|
6,152
EUR
|
— |
| Current liabilities |
9,448
EUR
|
8,467
EUR
|
9,338
EUR
|
— |
| Assets less current liabilities [abstract] |