The following table shows the items of finance income and costs for the years ended December 31:
| 2015 | 2016 | 2017 | ||||||||||
| Interest Perceptive Loan Agreement (see note 17) | (703 | ) | (762 | ) | 0 | |||||||
| Other finance cost Perceptive Loan Agreement (see note 17) | 0 | (242 | ) | 0 | ||||||||
| Interest SVB Loan Agreement (see note 17) | 0 | (41 | ) | (690 | ) | |||||||
| Foreign exchange differences | 1,808 | 691 | (2,378 | ) | ||||||||
| Interest on certificates of deposit with maturities of more than three months (see note 14) | 0 | 122 | 77 | |||||||||
| Other finance income/finance costs | (1 | ) | 2 | 8 | ||||||||
| Finance income/costs - net | 1,104 | (230 | ) | (2,983 | ) | |||||||