XML 94 R70.htm IDEA: XBRL DOCUMENT v3.22.2.2

FAIR VALUE MEASUREMENTS - Change in the Fair Value of the Company's Level 3 Financial Instruments (Details) - USD ($)			3 Months Ended			8 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2022	Mar. 23, 2022	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Avista Public Acquisition Corp. II [Member]
FAIR VALUE MEASUREMENTS
Change in fair value of Forward Purchase and Backstop Securities			$ 1,212,110		$ 0	$ 0	$ 1,147,120
Fair Value, Inputs, Level 3 [Member]
FAIR VALUE MEASUREMENTS
Fair value at the beginning							7,364,000
Change in fair value							(487,000)
Payments to CVR holders and other contingent payments							(2,505,000)
Fair value at the end			5,812,000				5,812,000	$ 7,364,000
Fair Value, Inputs, Level 3 [Member] | xCella [Member]
FAIR VALUE MEASUREMENTS
Contingent liabilities from xCella asset acquisition							1,440,000
Fair Value, Inputs, Level 3 [Member] | Business Combination Contingent Consideration Liability [Member]
FAIR VALUE MEASUREMENTS
Fair value at the beginning							7,364,000	7,204,000	$ 2,659,000
Change in fair value								1,210,000	2,070,000
Payments to CVR holders and other contingent payments								(1,770,000)	(2,325,000)
Fair value at the end								7,364,000	7,204,000
Fair Value, Inputs, Level 3 [Member] | Business Combination Contingent Consideration Liability [Member] | xCella [Member]
FAIR VALUE MEASUREMENTS
Contingent liabilities from xCella asset acquisition								$ 720,000
Fair Value, Inputs, Level 3 [Member] | Business Combination Contingent Consideration Liability [Member] | Icagen [Member]
FAIR VALUE MEASUREMENTS
Contingent liabilities from Icagen acquisition									$ 4,800,000
Fair Value, Inputs, Level 3 [Member] | Avista Public Acquisition Corp. II [Member]
FAIR VALUE MEASUREMENTS
Fair value at the beginning			383,390	$ 1,039,690		$ 0
Initial measurement as of March 23, 2022		$ 448,380
Change in fair value	$ 591,310		1,212,110	(656,300)
Fair value at the end	$ 1,039,690		$ 1,595,500	$ 383,390			$ 1,595,500

X

- Definition

Amount of increase (decrease) in the fair value of derivatives - Forward Purchase and Backstop Securities recognized in the income statement.

+ References

No definition available.

+ Details

Name:	oabi_DerivativeForwardPurchaseAndBackstopSecuritiesFairValueGainLoss
Namespace Prefix:	oabi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis liability contingent liabilities from acquisition.

+ References

No definition available.

+ Details

Name:	oabi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityContingentLiabilitiesFromAcquisition
Namespace Prefix:	oabi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Fair value measurement with unobservable inputs reconciliation recurring basis liability contingent liabilities from asset acquisition.

+ References

No definition available.

+ Details

Name:	oabi_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityContingentLiabilitiesFromAssetAcquisition
Namespace Prefix:	oabi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the amount of initial classification of the Forward Purchase.

+ References

No definition available.

+ Details

Name:	oabi_InitialMeasurementOfForwardPurchase
Namespace Prefix:	oabi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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

X

- Definition

Amount of gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

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

X

- Definition

Amount of settlements of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Fair value of financial instrument classified as a liability measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	dei_LegalEntityAxis=oabi_AvistaPublicAcquisitionCorp.IiMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=oabi_BusinessCombinationContingentConsiderationLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=oabi_IcagenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: