| Year ended December 31, | ||||||||
| 2017 | 2016 | |||||||
| Assets / Liabilities | ||||||||
| At the beginning of the year | 23,242 | 23,234 | ||||||
| Acquisition | 3,681 | - | ||||||
| Decrease due to write down | (564 | ) | - | |||||
| Currency translation adjustment and others | 50 | 8 | ||||||
| At the end of the year | 26,409 | 23,242 | ||||||