Name:	nbrv_DefinedContributionPlanEmployerMatchingContributionPercentFirstLevel
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage employer matches of the employee's first level of percentage contribution matched.

No definition available.

Name:	nbrv_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchFirstLevel
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage employer matches of the employee's second level of percentage contribution matched.

No definition available.

Name:	nbrv_DefinedContributionPlanEmployerMatchingContributionPercentOfMatchSecondLevel
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The second level of percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

No definition available.

Name:	nbrv_DefinedContributionPlanEmployerMatchingContributionPercentSecondLevel
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of employees' gross pay for which the employer contributes to a state plan classified as a defined contribution plan as required by Austrian labor law.

No definition available.

Name:	nbrv_DefinedContributionPlanEmployerMonthlyContributionPercent
Namespace Prefix:	nbrv_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The amount of the cost recognized during the period for defined contribution plans.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942