Name:	nbrv_BenefitFromLoanInterestRateBelowMarket
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Represents research premium from the Austrian government, calculated as a percentage of a specified research and development cost base.

No definition available.

Name:	nbrv_ResearchPremium
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

n/a

No definition available.

Name:	nbrv_ResearchPremiumAndGrantIncomeAbstract
Namespace Prefix:	nbrv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Represents revenues received from the Vienna Business Promotion Fund (WWFF), which is paid out through the landlord in the form of a monthly reduction in lease payments.

No definition available.

Name:	nbrv_WwffGrants
Namespace Prefix:	nbrv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Revenue earned during the period from non-repayable sum of money awarded to an entity to carry out a specific purpose as provided in grant agreements.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(e))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688