Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
As at 2022-12-31 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
As at 2022-12-31 |
As at 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 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Equity |
4 706 857
SEK
|
3 765 655
SEK
|
344 241
SEK
|
— | — |
596 962
SEK
|
6 678 398
SEK
|
5 737 195
SEK
|
— |
596 962
SEK
|
344 241
SEK
|
— |
5 687 129
SEK
|
344 241
SEK
|
4 745 926
SEK
|
596 962
SEK
|
| Changes in equity [abstract] | ||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) | — | — | — |
1 676 546
SEK
|
1 676 546
SEK
|
— | — | — |
1 262 924
SEK
|
— | — |
1 262 924
SEK
|
— | — | — | — |
| Dividends recognised as distributions to owners | — | — | — |
295 476
SEK
|
295 476
SEK
|
— | — | — |
272 747
SEK
|
— | — |
272 747
SEK
|
— | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
481,000
SEK
|
481,000
SEK
|
— | — | — |
1 092
SEK
|
— | — |
1 092
SEK
|
— | — | — | — |