Disclosure Of Interests In Other Entities [Text Block]
| Concept | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | As at 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | 2022-01-01 to 2022-12-31 | As at 2021-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of interests in other entities [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of interests in subsidiaries [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of subsidiaries [text block] | — |  | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of subsidiaries [abstract] | |||||||||||||
| Disclosure of subsidiaries [line items] | |||||||||||||
| Current assets | — | — | 
                                                28 425
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                31 916
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Non-current assets | — | — | 
                                                98 032
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                75 776
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Current liabilities | — | — | 
                                                22 697
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                3 124
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Non-current liabilities | — | — | 
                                                47 336
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                48 375
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Revenue | — | 
                                                164,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                136,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
| Profit (loss) | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
| Comprehensive income | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | 
| Disclosure of interests in associates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of associates [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of associates [abstract] | |||||||||||||
| Disclosure of associates [line items] | |||||||||||||
| Disclosure of interests in joint arrangements [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of joint ventures [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of joint ventures [abstract] | |||||||||||||
| Disclosure of joint ventures [line items] | |||||||||||||
| Cash and cash equivalents | — | — | 
                                                416,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                78,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                397,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Depreciation and amortisation expense | — | 
                                                74,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                100,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — |