Disclosure Of Non-Current Assets Held For Sale And Discontinued Operations [Text Block]
| Concept | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|
| Disclosure of non-current assets held for sale and discontinued operations [text block] |  | — | 
| Disclosure of analysis of single amount of discontinued operations [text block] | — | — | 
| Disclosure of analysis of single amount of discontinued operations [abstract] | ||
| Disclosure of analysis of single amount of discontinued operations [line items] | ||
| Profit (loss) before tax | 
                                                76 149
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                131 479
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Revenue | 
                                                350 349
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                473 336
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Profit (loss) from discontinued operations | 
                                                1 369
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                1 020
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Cash flows from continuing and discontinued operations [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Cash flows from (used in) operating activities | 
                                                19 546
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                13 495
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Cash flows from (used in) investing activities [abstract] | ||
| Cash flows from (used in) investing activities | 
                                                -
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                3 116
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
| Cash flows from (used in) financing activities [abstract] | ||
| Cash flows from (used in) financing activities | 
                                                32 236
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             | 
                                                12 223
                                                
                                                    
                                                        SEK
                                                    
                                                
                                             |