Statement Of Changes In Equity [Abstract]
| Concept | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 2021-12-31 | As at 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 | As at 2020-12-31 | As at 2020-12-31 | As at 2020-12-31 | 2020-01-01 to 2020-12-31 | As at 2020-12-31 | As at 2020-12-31 | As at 2020-12-31 | As at 2019-12-31 | As at 2019-12-31 | As at 2019-12-31 | As at 2019-12-31 | As at 2019-12-31 | As at 2019-12-31 | As at 2019-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | |||||||||||||||||||||||||
| Statement of changes in equity [line items] | |||||||||||||||||||||||||
| Equity | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                12,284
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                140,902
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                96,535
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                132,078
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                12,398
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                96,535
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                141,303
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                131,563
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                96,535
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                12,909
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                12,173
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                137,901
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                147,882
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Changes in equity [abstract] | |||||||||||||||||||||||||
| Comprehensive income [abstract] | |||||||||||||||||||||||||
| Profit (loss) | — | — | — | — | — | — | — | 
                                                401,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                401,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                6,113
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | 
                                                6,113
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Other comprehensive income | — | — | — | — | — | — | — | 
                                                114,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                225,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Comprehensive income | — | — | — | — | — | — | — | 
                                                515,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                6,338
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |