Share-based payments (Details 4) - Warrants Granted [Member] - kr / shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| IfrsStatementLineItems [Line Items] | ||
| Weighted average share price (SEK) | kr 0.3738 | kr (0) |
| Weighted average exercise price (SEK) | kr 0.7263 | kr (0) |
| Expected volatility | 35.00% | (0.00%) |
| Risk-free interest rate | (0.00%) | |
| Top Of Ranges [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Expected life | 3 years | |
| Risk-free interest rate | 3.70% | |
| Bottom Of Ranges [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Expected life | 5 years | |
| Risk-free interest rate | 4.10% | |