XML 51 R36.htm IDEA: XBRL DOCUMENT
v3.23.1

Commitments and Contingencies - Gemphire Contingent Value Rights Agreement (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Mar. 23, 2021 | Dec. 30, 2019
--- | --- | --- | ---
Mergers |  |  |
Amount of milestones accrued | $ 0 |  |
Original CVR Agreement |  |  |
Mergers |  |  |
Percentage of proceeds from the grant, sale, or transfer of rights |  | 10.00% | 80.00%
Amount of milestones accrued | $ 0 |  |

X
- Definition Refers to milestones accrued. + References No definition available. + Details
Name: | nrbo_MilestonesAccrued
Namespace Prefix: | nrbo_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Refers to percentage of proceeds from grant sale or transfer of rights. + References No definition available. + Details
Name: | nrbo_PercentageOfProceedsFromGrantSaleOrTransferOfRights
Namespace Prefix: | nrbo_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_AssetAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=nrbo_OriginalCvrAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |