Other Liabilities ans Accruals - Summary of Short-term and Payable Within 1 Year (Detail) - EUR (€) € in Thousands	Jun. 30, 2018	Dec. 31, 2017
Disclosure of accruals and other payables [abstract]
Accrued auditor's fee	€ 90	€ 96
Personnel	315	446
R&D costs	8,777	5,272
IP - Legal fee	128	509
Bonuses	940	1,545
Subsidy advance received	145	224
Other accruals	465	535
Total	€ 10,860	€ 8,627

The amount of accruals for employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services. [Refer: Accruals classified as current]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2018-01-01
-Paragraph 78
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_78&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_ShorttermEmployeeBenefitsAccruals
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant