The following table summarizes segment reporting. The sum of the amounts of the two segments equals the total for the Group in each of the periods.
| Quarter Ended December 31, (unaudited) | Year Ended December 31, | |||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||
| (€ in thousands, except gross profit margin) | ||||||||||||||
| Revenues | ||||||||||||||
| Systems | 4,247 | 2,458 | 9,057 | 6,343 | ||||||||||
| Services | 2,691 | 1,235 | 7,106 | 5,345 | ||||||||||
| Total revenues | 6,938 | 3,693 | 16,163 | 11,688 | ||||||||||
| Cost of sales | ||||||||||||||
| Systems | (2,440 | ) | (1,273 | ) | (5,756 | ) | (3,838 | ) | ||||||
| Services | (1,510 | ) | (895 | ) | (4,082 | ) | (3,207 | ) | ||||||
| Total cost of sales | (3,950 | ) | (2,168 | ) | (9,838 | ) | (7,045 | ) | ||||||
| Gross profit | ||||||||||||||
| Systems | 1,807 | 1,185 | 3,301 | 2,505 | ||||||||||
| Services | 1,181 | 340 | 3,024 | 2,138 | ||||||||||
| Total gross profit | 2,988 | 1,525 | 6,325 | 4,643 | ||||||||||
| Gross profit margin (%) | ||||||||||||||
| Systems | 42.5 | % | 48.2 | % | 36.4 | % | 39.5 | % | ||||||
| Services | 43.9 | % | 27.5 | % | 42.6 | % | 40.0 | % | ||||||
| Total gross profit margin (%) | 43.1 | % | 41.3 | % | 39.1 | % | 39.7 | % | ||||||
