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 | 2021-01-01 to 2021-12-31 | 2020-01-01 to 2020-12-31 | 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 | — | 
                                                193,067
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                143,136
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Depreciation and amortisation expense | — | 
                                                4,712
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                4,199
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Tax expense (income) | — | 
                                                760,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                37,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Profit (loss) before tax | — | 
                                                538,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                7,795
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Profit (loss) | — | 
                                                222,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                222,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                7,758
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                7,758
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Assets | 
                                                333,722
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | 
                                                327,837
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | 
| Cash flows from (used in) operating activities | — | 
                                                4,243
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                10,031
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Cash flows from (used in) investing activities | — | 
                                                922,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                11,765
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
| Cash flows from (used in) financing activities | — | 
                                                3,191
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,843
                                                
                                                    
                                                        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] |