Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 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 |
As at 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
2022-01-01 to 2022-12-31 |
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 2021-12-31 |
2021-01-01 to 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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 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 |
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 |
180 859
SEK
|
— | — | — | — |
–
SEK
|
533 732
SEK
|
34 871
SEK
|
972,000
SEK
|
180 859
SEK
|
678 747
SEK
|
— | — | — | — |
405 827
SEK
|
678 831
SEK
|
— |
307 834
SEK
|
— |
307 834
SEK
|
— |
254,000
SEK
|
34 576
SEK
|
–
SEK
|
— | — | — |
286 491
SEK
|
–
SEK
|
493 731
SEK
|
236 056
SEK
|
28 697
SEK
|
119,000
SEK
|
236 056
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||||||||||
| Profit (loss) | — |
–
SEK
|
131 223
SEK
|
131 223
SEK
|
–
SEK
|
— | — | — | — | — | — |
131 223
SEK
|
–
SEK
|
–
SEK
|
–
SEK
|
— | — |
125 903
SEK
|
— |
–
SEK
|
— |
–
SEK
|
— | — | — |
–
SEK
|
125 903
SEK
|
125 903
SEK
|
— | — | — | — | — | — | — |
| Other comprehensive income | — | — |
718,000
SEK
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
135,000
SEK
|
— | — | — | — | — | — | — | — |
| Comprehensive income | — |
–
SEK
|
130 504
SEK
|
131 223
SEK
|
–
SEK
|
— | — | — | — | — | — |
130 504
SEK
|
718,000
SEK
|
–
SEK
|
–
SEK
|
— | — |
125 768
SEK
|
— |
135,000
SEK
|
— |
–
SEK
|
— | — | — |
–
SEK
|
125 768
SEK
|
125 903
SEK
|
— | — | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — |
–
SEK
|
3 612
SEK
|
3 612
SEK
|
–
SEK
|
— | — | — | — | — | — |
3 612
SEK
|
–
SEK
|
–
SEK
|
–
SEK
|
— | — |
6 964
SEK
|
— |
–
SEK
|
— |
–
SEK
|
— | — | — |
–
SEK
|
6 964
SEK
|
6 964
SEK
|
— | — | — | — | — | — | — |