v3.26.1
Revenue and operating segments (Details 1) - SEK (kr)
kr in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
IfrsStatementLineItems [Line Items]    
Revenue kr 457,840 kr 388,377
Sweden [Member]    
IfrsStatementLineItems [Line Items]    
Revenue 160,633 120,974
United States [Member]    
IfrsStatementLineItems [Line Items]    
Revenue 123,381 151,680
Germany [Member]    
IfrsStatementLineItems [Line Items]    
Revenue 91,296 69,378
All Other Countries [Member]    
IfrsStatementLineItems [Line Items]    
Revenue kr 82,530 kr 46,345