Disclosure Of Impairment Of Assets [Text Block]
| Concept | As at 2024-12-31 | As at 2023-12-31 | 
|---|---|---|
| Disclosure of impairment of assets [text block] | — | — | 
| Disclosure of information for cash-generating units [text block] | — | — | 
| Disclosure of information for cash-generating units [abstract] | ||
| Disclosure of information for cash-generating units [line items] | ||
| Goodwill | 
                                                69  260
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                119  260
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             |