Operating costs - Summary of sales and marketing expenses (Details) - EUR (€) € in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Operating costs | |||
| Personnel costs | € (7,558) | € (2,282) | € (2,156) |
| Depreciation | (61) | ||
| External outsourcing costs | (15,722) | (1,284) | (42) |
| Other operating expenses | (1,236) | (580) | (604) |
| Total sales and marketing expenses | € (24,577) | € (4,146) | € (2,803) |