Statement Of Changes In Equity [Abstract]

Elecster Oyj - Filing #2196062

Concept	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	As at 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	As at 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	As at 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31	As at 2018-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	18 469 EUR	100,000 EUR	—	—	26 621 EUR	—	26 612 EUR	4 239 EUR	9,000 EUR	652,000 EUR	3 152 EUR	—	—	—	15 741 EUR	8,000 EUR	23 013 EUR	3 152 EUR	—	209,000 EUR	90,000 EUR	4 239 EUR	—	23 021 EUR	—	—	—	95,000 EUR	169,000 EUR	4 239 EUR	1 022 EUR	25 446 EUR	26 468 EUR	3 152 EUR	17 792 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	—	—	—	—	—	—	—	—	—	—	—	—	2 497 EUR	—	2 750 EUR	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	91,000 EUR	—	—	10,000 EUR	3 857 EUR	—	861,000 EUR	—	—	—	—	—	3 767 EUR	2 987 EUR	561,000 EUR	—	—	—	—	181,000 EUR	—	—	—	3,000 EUR	—	377,000 EUR	—	561,000 EUR	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	—	—	—	—	1 049 EUR	—	—	—	—	—	—	—	1 049 EUR	1 049 EUR	862,000 EUR	—	—	—	—	862,000 EUR	—	—	—	—	—	—	—	862,000 EUR	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	92,000 EUR	—	—	—	791,000 EUR	—	—	—	—	—	—	—	883,000 EUR	791,000 EUR	2 024 EUR	—	—	—	—	1 008 EUR	—	—	—	1,000 EUR	—	—	1 015 EUR	1 010 EUR	—	—	—	—	—	—	—	—