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Stockholders’ Equity (Deficit) - Warrants (Details) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Warrants
Exercise price	$ 302,020.00	$ 312,019.00
Number Outstanding	78,055	40,555
Number Exercisable	78,055	40,555
$186.75
Warrants
Exercise price	$ 186.75
Number Outstanding	1,440
Number Exercisable	1,440
$260.00
Warrants
Exercise price	$ 260.00
Number Outstanding	39,115
Number Exercisable	39,115
$12.50
Warrants
Exercise price	$ 12.50
Number Outstanding	37,500
Number Exercisable	37,500

X

- Definition

Represents the number of warrants exercisable.

+ References

No definition available.

+ Details

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Namespace Prefix:	nrbo_
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Balance Type:	na
Period Type:	instant

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 http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

+ Details

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X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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- Details

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