Statement Of Cash Flows [Abstract]
| Concept | 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 | 2020-01-01 to 2020-12-31 | As at 2019-12-31 | 
|---|---|---|---|---|---|---|---|
| Statement of cash flows [abstract] | |||||||
| Cash flows from (used in) operating activities [abstract] | |||||||
| Profit (loss) | — | 
                                                401,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                401,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | 
                                                6,113
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                6,113
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments to reconcile profit (loss) [abstract] | |||||||
| Adjustments for decrease (increase) in inventories | — | 
                                                10,042
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                6,865
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments for depreciation and amortisation expense | — | 
                                                4,756
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                4,199
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss | — | 
                                                -
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,404
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments for provisions | — | 
                                                27,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,106
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments for unrealised foreign exchange losses (gains) | — | 
                                                150,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                384,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Adjustments for losses (gains) on disposal of non-current assets | — | 
                                                405,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                3,111
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Interest paid, classified as operating activities | — | 
                                                905,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,412
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Income taxes paid (refund), classified as operating activities | — | 
                                                274,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                65,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash flows from (used in) operating activities | — | 
                                                4,653
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                9,828
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities [abstract] | |||||||
| Proceeds from sales of intangible assets, classified as investing activities | — | 
                                                676,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                12,205
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash receipts from repayment of advances and loans made to other parties, classified as investing activities | — | 
                                                91,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                72,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash flows from (used in) investing activities | — | 
                                                953,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                11,765
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities [abstract] | |||||||
| Proceeds from borrowings, classified as financing activities | — | 
                                                8,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                28,499
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Repayments of borrowings, classified as financing activities | — | 
                                                9,173
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                27,305
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Payments of lease liabilities, classified as financing activities | — | 
                                                2,526
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                3,037
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash flows from (used in) financing activities | — | 
                                                3,699
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,843
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Increase (decrease) in cash and cash equivalents after effect of exchange rate changes | — | 
                                                1,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                95,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                1,708
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | — | — | 
                                                1,707
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             | — | 
                                                1,612
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             |