Consolidated statements of changes in equity
(unaudited)
| (thousands of €) | Share | Share | Translation | Other | Accumul. | Total | 
| On 1 January 2016 | 185,399 | 357,402 | (467) | (18) | (177,317) | 364,999 | 
| Net income | 
 | 
 | 
 | 
 | 8,067 | 8,067 | 
| Other comprehensive income | 
 | 
 | (816) | (122) | 
 | (938) | 
| Total comprehensive income | 
 | 
 | (816) | (122) | 8,067 | 7,129 | 
| Share-based compensation | 
 | 
 | 
 | 
 | 7,201 | 7,201 | 
| Issue of new shares | 36,575 | 289,696 | 
 | 
 | 
 | 326,271 | 
| Share issue costs | (269) | 
 | 
 | 
 | 
 | (269) | 
| Exercise of warrants | 1,756 | 1,732 | 
 | 
 | 
 | 3,489 | 
| On 30 September 2016 | 223,462 | 648,830 | (1,283) | (140) | (162,048) | 708,822 | 
| 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
| On 1 January 2017 | 223,928 | 649,135 | (1,090) | (1,000) | (112,272) | 758,701 | 
| Net loss | 
 | 
 | 
 | 
 | (85,855) | (85,855) | 
| Other comprehensive income | 
 | 
 | (569) | (62) | 
 | (631) | 
| Total comprehensive income | 
 | 
 | (569) | (62) | (85,855) | (86,486) | 
| Share-based compensation | 
 | 
 | 
 | 
 | 11,697 | 11,697 | 
| Issue of new shares | 23,331 | 340,593 | 
 | 
 | 
 | 363,924 | 
| Share issue costs | (15,837) | 
 | 
 | 
 | 
 | (15,837) | 
| Exercise of warrants | 1,770 | 3,165 | 
 | 
 | 
 | 4,935 | 
| On 30 September 2017 | 233,192 | 992,893 | (1,659) | (1,062) | (186,432) | 1,036,932 |