Analysis Of Income And Expense [Abstract]
| Concept |
2021-01-01 to 2021-12-31 |
2020-01-01 to 2020-12-31 |
2019-01-01 to 2019-12-31 |
|---|---|---|---|
| Analysis of income and expense [abstract] | |||
| Revenue [abstract] | |||
| Revenue from sale of goods |
20,438
EUR
|
18,208
EUR
|
24,493
EUR
|
| Revenue |
20,438
EUR
|
18,201
EUR
|
24,493
EUR
|
| Material income and expense [abstract] | |||
| Write-downs (reversals of write-downs) of inventories [abstract] | |||
| Write-downs (reversals of write-downs) of inventories |
36,000
EUR
|
19,000
EUR
|
18,000
EUR
|
| Impairment loss (reversal of impairment loss) on trade receivables [abstract] | |||
| Impairment loss (reversal of impairment loss) recognised in profit or loss, trade receivables |
31,000
EUR
|
59,000
EUR
|
15,000
EUR
|
| Interest expense | — | — | — |
| Interest expense on borrowings |
216,000
EUR
|
172,000
EUR
|
208,000
EUR
|
| Other operating income (expense) | — |
7,000
EUR
|
— |
| Miscellaneous other operating income |
447,000
EUR
|
285,000
EUR
|
323,000
EUR
|
| Operating expense |
22,661
EUR
|
20,102
EUR
|
24,839
EUR
|
| Expenses by nature [abstract] | |||
| Raw materials and consumables used |
6,931
EUR
|
6,015
EUR
|
7,899
EUR
|
| Classes of employee benefits expense [abstract] | |||
| Employee benefits expense |
8,736
EUR
|
7,586
EUR
|
9,396
EUR
|
| Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract] | |||
| Depreciation and amortisation expense [abstract] | |||
| Depreciation and amortisation expense |
1,970
EUR
|
2,381
EUR
|
2,622
EUR
|
| Impairment loss (reversal of impairment loss) recognised in profit or loss |
5,000
EUR
|
51,000
EUR
|
3,000
EUR
|
| Other expenses, by nature |
4,945,000
EUR
|
4,317,000
EUR
|
4,914
EUR
|
| Expenses, by nature |
5,020
EUR
|
4,171
EUR
|
4,925
EUR
|
| Disclosure of attribution of expenses by nature to their function [text block] | — | — | — |
| Disclosure of attribution of expenses by nature to their function [abstract] | |||
| Disclosure of attribution of expenses by nature to their function [line items] | |||
| Miscellaneous other comprehensive income [abstract] | |||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract] | |||
| Other comprehensive income, net of tax, exchange differences on translation of foreign operations |
2,000
EUR
|
4,000
EUR
|
1,000
EUR
|
| Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract] | |||
| Comprehensive income, attributable to owners of parent |
1,848
EUR
|
1,029
EUR
|
439,000
EUR
|