Statement Of Financial Position [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 | As at 2020-12-31 | As at 2020-12-31 | As at 2020-12-31 | As at 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 financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — | 
                                                66,454
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                68,274
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Investment property | — | — | — | — | — | 
                                                192,515
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                193,760
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Trade and other non-current receivables | — | — | — | — | — | 
                                                274,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                290,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Deferred tax assets | — | — | — | — | — | 
                                                4,520
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                3,833
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Non-current assets | — | — | — | — | — | 
                                                265,306
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                267,447
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Current assets [abstract] | |||||||||||||||||||||
| Current inventories | — | — | — | — | — | 
                                                38,950
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                28,908
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Trade and other current receivables | — | — | — | — | — | 
                                                74,293
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                95,732
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Cash and cash equivalents | — | — | — | — | — | 
                                                1,708
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                1,707
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,612
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
| Non-current assets or disposal groups classified as held for sale or as held for distribution to owners | — | — | — | — | — | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                2,271
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Current assets | — | — | — | — | — | 
                                                114,987
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                128,714
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Assets | — | — | — | — | — | 
                                                380,293
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                396,161
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Retained earnings | — | — | — | — | — | 
                                                140,902
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                141,303
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Treasury shares | — | — | — | — | — | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Other reserves | — | — | — | — | — | 
                                                84,468
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                84,354
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| 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
                                                    
                                                
                                             | 
                                                141,303
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                96,535
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                131,563
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                96,535
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                12,173
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                12,909
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                137,901
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                147,882
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                217,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                188,729
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — | 
                                                359,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                2,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Deferred tax liabilities | — | — | — | — | — | 
                                                21,191
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                21,191
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Non-current liabilities | — | — | — | — | — | 
                                                75,731
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                123,524
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Current liabilities [abstract] | |||||||||||||||||||||
| Trade and other current payables | — | — | — | — | — | 
                                                108,362
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                120,797
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Current tax liabilities, current | — | — | — | — | — | 
                                                11,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                369,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Current liabilities | — | — | — | — | — | 
                                                172,484
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                141,074
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
| Equity and liabilities | — | — | — | — | — | 
                                                380,293
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                396,161
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | — | — | — | — |