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Warrants - Summary of Changes in liabilities classified in Level 3 of the fair value hierarchy (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2023 USD ($)
Warrants and Rights Note Disclosure [Abstract]
Beginning balance	$ 37
Change in fair value of Private Warrants liability recognized in earnings	5
Ending balance	$ 42

X

- Definition

Change in fair value of private warrants liability recognized in earnings.

+ References

No definition available.

+ Details

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Namespace Prefix:	nuvb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Changes in liabilities classified in Level 3 of fair value hierarchy.

+ References

No definition available.

+ Details

Name:	nuvb_ChangesInLiabilitiesClassifiedInLevel3OfFairValueHierarchy
Namespace Prefix:	nuvb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	us-gaap_WarrantsAndRightsNoteDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration