Disclosure Of Entity's Operating Segments [Text Block]
| Concept | 
                                    
                                        As at 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  | 
                            
                                
                                    
                                        As at 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  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Disclosure of entity's operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of operating segments [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of operating segments [abstract] | ||||||||||||||
| Disclosure of operating segments [line items] | ||||||||||||||
| Revenue | — | — | — | — | — | — | 
                                        
                                             
                                                19,106
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                10,869
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Depreciation and amortisation expense | — | — | — | — | — | — | 
                                        
                                             
                                                2,952
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                2,943
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Tax expense (income) | — | — | — | — | — | — | 
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Profit (loss) before tax | — | — | — | — | — | — | 
                                        
                                             
                                                167,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                5,144
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Profit (loss) | — | 
                                        
                                             
                                                167,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                167,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                5,144
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                5,144
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Assets | 
                                        
                                             
                                                132,945
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | — | — | 
                                        
                                             
                                                144,217
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | — | — | 
| Cash flows from (used in) operating activities | — | — | — | — | — | — | 
                                        
                                             
                                                2,131
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                1,088
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Cash flows from (used in) investing activities | — | — | — | — | — | — | 
                                        
                                             
                                                384,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                106,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Cash flows from (used in) financing activities | — | — | — | — | — | — | 
                                        
                                             
                                                20,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | 
                                        
                                             
                                                19,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | — | — | — | 
| Disclosure of products and services [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of products and services [abstract] | ||||||||||||||
| Disclosure of products and services [line items] | ||||||||||||||
| Disclosure of geographical areas [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of geographical areas [abstract] | ||||||||||||||
| Disclosure of geographical areas [line items] | ||||||||||||||
| Disclosure of major customers [text block] | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Disclosure of major customers [abstract] | ||||||||||||||
| Disclosure of major customers [line items] |