XML 57 R42.htm IDEA: XBRL DOCUMENT
v3.23.1

Stockholders Equity - Warrants (Details) - $ / shares | Dec. 31, 2022 | Nov. 30, 2022 | Oct. 31, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Warrants |  |  |  |
Number of Warrants | 15,264,242 |  |  | 229,550
$7800.00 |  |  |  |
Warrants |  |  |  |
Number of Warrants |  |  |  | 1,315
Exercise Price | $ 7,800.00 |  |  |
$5,602.50 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 48 |  |  | 48
Exercise Price | $ 5,602.50 |  |  |
$375.00 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 1,252 |  |  | 1,252
Exercise Price | $ 375.00 |  |  |
$180.90 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 83,338 |  |  | 83,338
Exercise Price | $ 180.90 |  |  |
$112.50 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 143,597 |  |  | 143,597
Exercise Price | $ 112.50 |  |  |
$3.00 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 6,768,837 |  |  |
Exercise Price | $ 0.00 |  |  |
$3.00 |  |  |  |
Warrants |  |  |  |
Number of Warrants | 8,267,170 |  |  |
Exercise Price | $ 0.00 |  |  |
November 2022 Series A and B |  |  |  |
Warrants |  |  |  |
Exercise Price |  | $ 0.00 | $ 3.00 |

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_WarrantsAndRightsNoteDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_WarrantsExercisePrice7800.00Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_WarrantsExercisePrice5602.50Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_WarrantsExercisePrice375.00Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_WarrantsExercisePrice180.90Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_WarrantsExercisePrice112.50Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_November2022SeriesWarrantExercisePrice3.00Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_November2022SeriesBWarrantExercisePrice3.00Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=nrbo_November2022SeriesAndSeriesBWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |