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 |
2020-01-01 to 2020-12-31 |
As at 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 |
2 56 4 01
SEK
|
19 1 3 4 4
SEK
|
44 004
SEK
|
21 053
SEK
|
— | — | — |
340 983
SEK
|
— |
21 053
SEK
|
275 926
SEK
|
44 004
SEK
|
209 078
SEK
|
274 135
SEK
|
44 004
SEK
|
21 053
SEK
|
| Changes in equity [abstract] | ||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||
| Profit (loss) | — | — | — | — |
73 712
SEK
|
— | — | — |
66 852
SEK
|
— | — | — | — | — | — | — |
| Comprehensive income | — | — | — | — |
73 317
SEK
|
73 317
SEK
|
66 848
SEK
|
— |
66 848
SEK
|
— | — | — | — | — | — | — |