Disclosure Of Intangible Assets [Text Block]
| Concept | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|
| Disclosure of intangible assets [text block] | — | — | — | — | 
| Research and development expense | — | 
                                                2 282
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | — | 
                                                1 930
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Disclosure of reconciliation of changes in intangible assets and goodwill [text block] | — | — | — | — | 
| Disclosure of reconciliation of changes in intangible assets and goodwill [abstract] | ||||
| Disclosure of reconciliation of changes in intangible assets and goodwill [line items] | ||||
| Reconciliation of changes in intangible assets and goodwill [abstract] | ||||
| Intangible assets and goodwill | 
                                                25 075
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | — | 
                                                15 843
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | — |