Earnings Per Share (Details) - EUR (€) € / shares in Units, € in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Earnings Per Share
Result attributable to equity holders of the company (€ in thousands)	€ (36,894)	€ (43,637)	€ (39,103)
Weighted average number of shares outstanding	34,052,520	25,374,807	23,346,507
Basic (and diluted) earnings per share (€ per share)	€ (1.08)	€ (1.72)	€ (1.67)

The amount of earnings per share when the basic and diluted measurements are equal. [Refer: Basic earnings (loss) per share; Diluted earnings (loss) per share]

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- Definition

The profit (loss) attributable to ordinary equity holders of the parent equity. [Refer: Profit (loss)]

+ References

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The number of ordinary shares outstanding at the beginning of the period, adjusted by the number of ordinary shares bought back or issued during the period multiplied by a time-weighting factor.

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