| $000 | | Dec 31, 2017 | | Dec 31, 2016 | | Dec 31, 2015 | | |||
| | | | | | | | | | | |
| Balance at the beginning of the year | | | 58 | | | 45 | | | 74 | |
| Fair value movement recognized in | | | | | | | | | | |
| other comprehensive income | | | (34) | | | 12 | | | (20) | |
| Exchange gain/(loss) | | | 2 | | | 1 | | | (9) | |
| Balance at the end of the year | | | 26 | | | 58 | | | 45 | |