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Subsequent Events - Additional Information (Detail) $ in Millions	Feb. 08, 2023 USD ($)
Subsequent Event [Member] | Metacrine, Inc. [Member] | Metacrine's FXR Program [Member] | Term Sheet [Member]
Subsequent Event [Line Items]
Consideration of cash payments	$ 4

X

- Definition

Purchase price of expected asset acquisition prior to consideration being transferred. Excludes business acquisition.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 15
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=6911878&loc=d3e8732-128492

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=onvo_MetacrineIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AssetAcquisitionAxis=onvo_MetacrinesFxrProgramMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=onvo_TermSheetMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: