Statement Of Changes In Equity [Abstract]
| Concept |
As at 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 |
As at 2021-12-31 |
2021-01-01 to 2021-12-31 |
2021-01-01 to 2021-12-31 |
As at 2020-12-31 |
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 |
2020-01-01 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 |
230 082
SEK
|
7 254
SEK
|
2 974
SEK
|
— |
266 810
SEK
|
26 500
SEK
|
— | — |
197 598
SEK
|
— |
990,000
SEK
|
26 500
SEK
|
— |
2 379
SEK
|
— |
227 467
SEK
|
2 833
SEK
|
990,000
SEK
|
178 944
SEK
|
148 621
SEK
|
26 500
SEK
|
| Changes in equity [abstract] | |||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — |
58 632
SEK
|
58 632
SEK
|
— |
48 176
SEK
|
— | — |
48 176
SEK
|
— | — | — | — | — | — | — | — |
| Other comprehensive income | — | — | — |
4 875
SEK
|
— | — |
4 875
SEK
|
— | — |
454,000
SEK
|
— | — | — | — |
454,000
SEK
|
— | — | — | — | — | — |
| Comprehensive income | — | — | — |
4 875
SEK
|
— | — |
63 507
SEK
|
58 632
SEK
|
— |
47 722
SEK
|
— | — |
48 176
SEK
|
— |
454,000
SEK
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — | — | — | — |
326,000
SEK
|
326,000
SEK
|
— |
801,000
SEK
|
— | — |
801,000
SEK
|
— | — | — | — | — | — | — | — |