Statement Of Changes In Equity [Abstract]
| Concept |
2020-12-31 to 2021-12-31 |
2020-12-31 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2020-12-31 to 2021-12-31 |
2020-12-31 to 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
As at 2021-12-31 |
2020-12-31 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 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
As at 2020-12-31 |
As at 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 2020-12-31 |
2019-12-31 to 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 |
As at 2019-12-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||||
| Equity | — | — |
1 063
SEK
|
143 079
SEK
|
— | — |
26 594
SEK
|
114 334
SEK
|
1 088
SEK
|
— | — | — |
1 063
SEK
|
1 088
SEK
|
— | — |
110 385
SEK
|
8 440
SEK
|
— | — | — |
120 976
SEK
|
1 063
SEK
|
112 528
SEK
|
80 540
SEK
|
29 837
SEK
|
1 088
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||||
| Profit (loss) |
–
SEK
|
–
SEK
|
— | — |
–
SEK
|
26 594
SEK
|
— | — | — |
26 594
SEK
|
26 594
SEK
|
8 440
SEK
|
— | — |
–
SEK
|
8 440
SEK
|
— | — |
8 440
SEK
|
–
SEK
|
–
SEK
|
— | — | — | — | — | — |
| Comprehensive income |
–
SEK
|
–
SEK
|
— | — |
18,000,000
SEK
|
26 594
SEK
|
— | — | — |
26 612
SEK
|
26 612
SEK
|
8 440
SEK
|
— | — |
–
SEK
|
8 440
SEK
|
— | — |
8 440
SEK
|
0
SEK
|
–
SEK
|
— | — | — | — | — | — |
| Dividends recognised as distributions to owners |
–
SEK
|
–
SEK
|
— | — |
3 590
SEK
|
–
SEK
|
— | — | — |
3 590
SEK
|
— | — | — | — |
–
SEK
|
–
SEK
|
— | — |
–
SEK
|
–
SEK
|
–
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity |
–
SEK
|
–
SEK
|
— | — |
3,000,000
SEK
|
–
SEK
|
— | — | — |
3,000,000
SEK
|
— | — | — | — |
–
SEK
|
8,000,000
SEK
|
— | — |
–
SEK
|
8,000,000
SEK
|
–
SEK
|
— | — | — | — | — | — |