Schedule of derivative instruments (Details) - SEK (kr) kr in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Notes and other explanatory information [abstract] | ||
| Derivative instruments | kr 1,432 | kr 45,028 |
| Net gains on financial assets or liabilities measured at fair value through profit or loss | 129,262 | (51,315) |
| Finance costs | 2,290 | 7,719 |
| Derivative instruments | kr 132,984 | kr 1,432 |