Analysis Of Income And Expense [Abstract]

Teleste Oyj - Filing #2196707

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	—	—	—	—	143 966 EUR	—	—	—	144 983 EUR	—	—	—	—	—
Expenses by nature [abstract]
Raw materials and consumables used	—	—	—	—	—	—	67 672 EUR	—	—	—	72 039 EUR	—	—	—	—	—
Classes of employee benefits expense [abstract]
Employee benefits expense	—	—	—	—	—	—	46 825 EUR	—	—	—	45 156 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	—	—	—	—	—	—	7 566 EUR	—	—	—	7 241 EUR	—	—	—	—	—
Other expenses, by nature	—	—	—	—	—	—	18 399 EUR	—	—	—	17 814 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, before tax, exchange differences on translation of foreign operations and hedges of net investments in foreign operations [abstract]
Other comprehensive income, before tax, exchange differences on translation of foreign operations	—	—	—	—	—	—	620,000 EUR	—	—	—	615,000 EUR	—	—	—	—	—
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	140,000 EUR	0 EUR	1,000 EUR	0 EUR	165,000 EUR	7 692 EUR	7 552 EUR	7 525 EUR	8 451 EUR	0 EUR	8 588 EUR	37,000 EUR	236,000 EUR	0 EUR	8 352 EUR	62,000 EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	—	—	—	—	7 691 EUR	—	—	—	8 353 EUR	—	—	—	—	—
Comprehensive income attributable to non-controlling interests, continuing and discontinued operations [abstract]
Comprehensive income, attributable to non-controlling interests	—	—	—	—	—	—	140,000 EUR	—	—	—	235,000 EUR	—	—	—	—	—