Share-based payments (Details 1) - Options [Member] - kr / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| IfrsStatementLineItems [Line Items] | ||
| Weighted average share price (SEK) | kr 0.6248 | kr 0.8471 |
| Weighted average exercise price (SEK) | kr 0.7154 | kr 1.0054 |
| Expected volatility | 35.00% | 35.00% |
| Expected life | 1 year | 4 years |
| Risk-free interest rate | 3.70% | |
| Top Of Ranges [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Risk-free interest rate | 4.40% | |
| Bottom Of Ranges [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Risk-free interest rate | 4.70% | |