Statement Of Changes In Equity [Abstract]

Investors House Oyj - Filing #5421441

Concept	2024-01-01 to 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2024-01-01 to 2024-12-31	2024-01-01 to 2024-12-31	As at 2024-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	2023-01-01 to 2023-12-31	2023-01-01 to 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2023-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31	As at 2022-12-31
Statement of changes in equity [abstract]
Statement of changes in equity [line items]
Equity	—	16 031 EUR	7,000 EUR	2 556 EUR	9 069 EUR	19 734 EUR	—	38 328 EUR	—	—	47 397 EUR	—	33 954 EUR	—	11 260 EUR	—	—	19 796 EUR	335,000 EUR	7,000 EUR	2 556 EUR	33 619 EUR	19 868 EUR	425,000 EUR	7,000 EUR	9 682 EUR	2 556 EUR	32 113 EUR
Changes in equity [abstract]
Comprehensive income [abstract]
Profit (loss)	6 850 EUR	—	—	—	—	—	6 850 EUR	—	—	8 596 EUR	—	3 503 EUR	—	3 559 EUR	—	—	3 559 EUR	—	—	—	—	—	—	—	—	—	—	—
Comprehensive income	6 850 EUR	—	—	—	—	—	6 850 EUR	—	1 746 EUR	8 596 EUR	—	3 503 EUR	—	3 559 EUR	—	56,000 EUR	3 559 EUR	—	—	—	—	—	—	—	—	—	—	—
Dividends recognised as distributions to owners	2 100 EUR	—	—	—	—	—	2 100 EUR	—	—	—	—	—	—	1 980 EUR	—	—	1 980 EUR	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through other changes, equity	—	—	—	—	—	—	—	—	6 988 EUR	—	—	—	—	—	—	34,000 EUR	—	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through changes in ownership interests in subsidiaries that do not result in loss of control, equity	1,000 EUR	—	—	—	—	—	1,000 EUR	—	—	—	—	—	—	1,000 EUR	—	—	1,000 EUR	—	—	—	—	—	—	—	—	—	—	—
Increase (decrease) through share-based payment transactions, equity	22,000 EUR	—	—	—	—	—	22,000 EUR	—	—	—	—	—	—	0 EUR	—	—	- EUR	—	—	—	—	—	—	—	—	—	—	—