Disclosure Of Cash Flow Statement [Text Block]
| Concept | 
                                    
                                        As at 2021-12-31  | 
                            
                                
                                    
                                        2021-01-01 to 2021-12-31  | 
                            
                                
                                    
                                        As at 2020-12-31  | 
                            
                                
                                    
                                        2020-01-01 to 2020-12-31  | 
                            
                        
|---|---|---|---|---|
| Disclosure of cash flow statement [text block] | — | — | — | — | 
| Cash and cash equivalents if different from statement of financial position [abstract] | ||||
| Cash and cash equivalents | 
                                        
                                             
                                                3,151
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                1,425
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Income taxes paid (refund) [abstract] | ||||
| Income taxes paid (refund), classified as operating activities | — | 
                                        
                                             
                                                38,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                45,000
                                                
                                                    
                                                        iso4217:HRK
                                                    
                                                
                                             
                                        
                                     |