| 2017 | 2016 | 2015 | ||||||||||
| Foreign currency translation reserve | (5,885 | ) | (6,258 | ) | (6,520 | ) | ||||||
| Equity-settled share-based payment reserve (Note 23.1) | 16,746 | 16,041 | 15,871 | |||||||||
| Contributed surplus | 132,591 | 132,591 | 132,591 | |||||||||
| Total | 143,452 | 142,374 | 141,942 | |||||||||