Profit Or Loss [Abstract]
| Concept | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2021-01-01 to 2021-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 2020-01-01 to 2020-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Profit or loss [abstract] | ||||||||||||||||||
| Profit (loss) [abstract] | ||||||||||||||||||
| Revenue | — | — | — | — | — | — | — | 
                                                4 276
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                4 250
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Other income | — | — | — | — | — | — | — | 
                                                2,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                5,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Raw materials and consumables used | — | — | — | — | — | — | — | 
                                                32,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                29,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Employee benefits expense | — | — | — | — | — | — | — | 
                                                2 075
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                1 815
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Depreciation and amortisation expense | — | — | — | — | — | — | — | 
                                                109,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                89,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Other expenses, by nature | — | — | — | — | — | — | — | 
                                                18,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                26,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Profit (loss) from operating activities | — | — | — | — | — | — | — | 
                                                132,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                322,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Profit (loss) before tax | — | — | — | — | — | — | — | 
                                                9 410
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                177,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Tax expense (income) | — | — | — | — | — | — | — | 
                                                1 186
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Profit (loss) | 
                                                6,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                8 230
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                8 224
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                8 230
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                128,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                177,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                49,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                128,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | 
| Profit (loss), attributable to [abstract] | ||||||||||||||||||
| Profit (loss), attributable to owners of parent | — | — | — | — | — | — | — | 
                                                8 230
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                128,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Profit (loss), attributable to non-controlling interests | — | — | — | — | — | — | — | 
                                                6,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | 
                                                49,000
                                                
                                                    
                                                        BGN
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Earnings per share [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Earnings per share [abstract] | ||||||||||||||||||
| Earnings per share [line items] | ||||||||||||||||||
| Basic earnings per share [abstract] | ||||||||||||||||||
| Basic earnings (loss) per share | — | — | — | — | — | — | — | 
                                                1,219.0000
                                                
                                             | — | — | — | 
                                                19.0000
                                                
                                             | — | — | — | — | — | — |