Statement Of Changes In Equity [Abstract]
| Concept |
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 |
2020-01-01 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||
| Equity |
318 233
SEK
|
904 319
SEK
|
1 217 607
SEK
|
4 945
SEK
|
— | — | — |
66 567
SEK
|
2 552
SEK
|
— |
70 4 0 6 8
SEK
|
768 083
SEK
|
515 076
SEK
|
104 908
SEK
|
619 003
SEK
|
981,000
SEK
|
| Changes in equity [abstract] | ||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) | — | — | — | — |
20 0 251
SEK
|
200 251
SEK
|
188 992
SEK
|
— | — |
188 992
SEK
|
— | — | — | — | — | — |
| Comprehensive income | — | — | — | — |
200 251
SEK
|
20 0 251
SEK
|
188 992
SEK
|
— | — |
188 992
SEK
|
— | — | — | — | — | — |