Statement Of Changes In Equity [Abstract]
| Concept |
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 |
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 |
2020-01-01 to 2020-12-31 |
2020-01-01 to 2020-12-31 |
As at 2019-12-31 |
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 |
75 595
SEK
|
58 100
SEK
|
— | — |
135 066
SEK
|
840,000
SEK
|
531,000
SEK
|
— | — | — |
52 419
SEK
|
58 100
SEK
|
110 840
SEK
|
531,000
SEK
|
— |
210,000
SEK
|
— | — |
68 627
SEK
|
363,000
SEK
|
58 100
SEK
|
9 633
SEK
|
531,000
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||
| Profit (loss) | — | — |
58 691
SEK
|
— | — | — | — |
58 691
SEK
|
58 691
SEK
|
62 711
SEK
|
— | — | — | — |
62 711
SEK
|
— | — |
62 711
SEK
|
— | — | — | — | — |
| Other comprehensive income | — | — | — |
1 050
SEK
|
— | — | — |
1 050
SEK
|
— |
573,000
SEK
|
— | — | — | — | — | — |
573,000
SEK
|
— | — | — | — | — | — |
| Comprehensive income | — | — |
59 741
SEK
|
1 050
SEK
|
— | — | — |
59 741
SEK
|
58 691
SEK
|
62 138
SEK
|
— | — | — | — |
62 711
SEK
|
— |
573,000
SEK
|
62 138
SEK
|
— | — | — | — | — |
| Increase (decrease) through other changes, equity | — | — |
2 307
SEK
|
— | — | — | — | — |
2 307
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — |