| 19. | Related party transactions |
| $000 | | Dec 31, 2017 | | Dec 31, 2016 | | Dec 31, 2015 | | |||
| Management fee received from Rockwell Diamonds Inc | | | - | | | 9 | | | 37 | |
| Net income from Loulo | | | - | | | - | | | - | |
| Net income from Tongon | | | - | | | - | | | - | |
| Net income from Morila | | | 3,764 | | | 3,522 | | | 14,259 | |
| Net income from Gounkoto | | | - | | | - | | | - | |
| Net income from Kibali | | | 13,829 | | | 43,106 | | | 47,555 | |
| Net income from RAL 1 | | | 778 | | | 2,319 | | | 3,049 | |
| Net income from RAL 2 | | | 2,595 | | | 405 | | | 335 | |
| $000 | | Dec 31, 2017 | | Dec 31, 2016 | | ||
| Key management remuneration | | | | | | | |
| Short term employee benefits | | | 13,009 | | | 12,899 | |
| Share-based payments | | | 10,831 | | | 10,836 | |
| Total | | | 23,840 | | | 23,735 | |