Profit Or Loss [Abstract]
| Concept | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 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 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||
| Profit (loss) [abstract] | ||||||||||
| Revenue | — | 
                                                164,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                136,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Other income | — | 
                                                614,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                172,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Raw materials and consumables used | — | 
                                                54,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                64,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Employee benefits expense | — | 
                                                132,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                106,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Depreciation and amortisation expense | — | 
                                                74,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                100,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Other expenses, by nature | — | 
                                                427,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                894,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Profit (loss) from operating activities | — | 
                                                268,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                4 399
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Finance costs | — | 
                                                2 385
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | 
                                                1 682
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | 
| Profit (loss) | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                147,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                2 717
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Earnings per share [text block] | — | — | — | — | — | — | — | — | — | — | 
| Earnings per share [abstract] | ||||||||||
| Earnings per share [line items] | ||||||||||
| Diluted earnings per share [abstract] | ||||||||||
| Diluted earnings (loss) per share | — | 
                                                0.0200
                                                
                                             | — | — | — | — | — | 
                                                0.3900
                                                
                                             | — | — |