The amount of income (expense) related to decrease (increase) in fair value of Convertible Notes.

No definition available.

Name:	aeon_IncomeExpenseRelatedToDecreaseIncreaseInFairValueOfConvertibleNotes
Namespace Prefix:	aeon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of additional tranches of subordinated convertible promissory notes issued.

+ References

No definition available.

+ Details

Name:	aeon_NumberOfAdditionalTranchesOfSubordinatedConvertiblePromissoryNotesIssued
Namespace Prefix:	aeon_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of convertible notes issued.

+ References

No definition available.

+ Details

Name:	aeon_NumberOfConvertibleNotesIssued
Namespace Prefix:	aeon_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of discount rate if number of days between execution date and conversion date are between 91 and 180.

+ References

No definition available.

+ Details

Name:	aeon_PercentageOfDiscountRateIfNumberOfDaysBetweenExecutionDateAndConversionDateAreBetween91And180
Namespace Prefix:	aeon_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of discount rate if number of days between execution date and conversion date are between zero and 90.

+ References

No definition available.

+ Details

Name:	aeon_PercentageOfDiscountRateIfNumberOfDaysBetweenExecutionDateAndConversionDateAreBetweenZeroAnd90
Namespace Prefix:	aeon_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of discount rate if number of days between execution date and conversion date is greater than 180 days.

+ References

No definition available.

+ Details

Name:	aeon_PercentageOfDiscountRateIfNumberOfDaysBetweenExecutionDateAndConversionDateIsGreaterThan180
Namespace Prefix:	aeon_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock.

+ References

No definition available.

+ Details

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

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(13))
-URI https://asc.fasb.org/extlink&oid=120401414&loc=d3e603758-122996

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=aeon_Alphaeon1LlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=aeon_A1PurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotes2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn8thDecember2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn15thDecember2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotes2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn18thFebruary2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn9thMarch2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn14thApril2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOnJune32022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesIssuedOn1stJuly2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesMarch2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesMay2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=aeon_A1ConvertibleNotesJune2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions - A1 Convertible Notes (Details) - Alphaeon 1 LLC (A1) - A1 Purchase Agreement $ in Millions			1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 15, 2021 USD ($) item	Dec. 08, 2021 USD ($) item	Dec. 31, 2021 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)	Jun. 27, 2023 USD ($)	May 02, 2023 USD ($)	Mar. 06, 2023 USD ($)	Jul. 01, 2022 USD ($)	Jun. 03, 2022 USD ($)	Apr. 14, 2022 USD ($)	Mar. 09, 2022 USD ($)	Feb. 18, 2022 USD ($)
Related Party Transactions
Aggregate principal amount			$ 25.0						$ 25.0
2021 A1 Convertible Notes
Related Party Transactions
Aggregate principal amount			$ 10.0						10.0
Percentage of discount rate if number of days between execution date and conversion date are between zero and 90			10.00%
Percentage of discount rate if number of days between execution date and conversion date are between 91 and 180			15.00%
Percentage of discount rate if number of days between execution date and conversion date is grated than 180 days			20.00%
Income (expense) related to change in fair value				$ (0.7)	$ (0.2)	$ (1.2)	$ 1.6	$ 0.6	(0.2)
Principal amount outstanding			$ 10.0	10.0		10.0		10.0	10.0
Estimated fair value of convertible notes			$ 10.2	10.8		10.8		9.6	$ 10.2
A1 Convertible Notes issued on December 8, 2021
Related Party Transactions
Aggregate principal amount		$ 5.0
Number of convertible notes issued \| item	2	2
A1 Convertible Notes issued on December 15, 2021
Related Party Transactions
Aggregate principal amount	$ 5.0
2022 A1 Convertible Notes
Related Party Transactions
Aggregate principal amount								14.5
Interest rate (as a percent)			10.00%						10.00%
Income (expense) related to change in fair value				(1.0)	$ (0.9)	1.7	$ (1.9)	(1.0)
Principal amount outstanding				14.5		14.5		14.5
Estimated fair value of convertible notes				15.2		15.2		$ 13.5
Number of additional tranches of subordinated convertible promissory notes issued \| item								5
A1 Convertible Notes, Issued on February 18, 2022
Related Party Transactions
Aggregate principal amount																	$ 3.0
A1 Convertible Notes, Issued on 9th March, 2022
Related Party Transactions
Aggregate principal amount																$ 3.0
A1 Convertible Notes, Issued on April 14, 2022
Related Party Transactions
Aggregate principal amount															$ 3.0
A1 Convertible Notes, Issued on June 3, 2022
Related Party Transactions
Aggregate principal amount														$ 3.0
A1 Convertible Notes, Issued on July 1, 2022
Related Party Transactions
Aggregate principal amount													$ 2.5
March 2023 A1 Convertible Notes
Related Party Transactions
Aggregate principal amount												$ 6.0
Interest rate (as a percent)												15.79%
Income (expense) related to change in fair value				1.9		(0.1)
Principal amount outstanding				6.0		6.0
Estimated fair value of convertible notes				6.1		6.1
May 2023 A1 Convertible Notes
Related Party Transactions
Aggregate principal amount											$ 6.0
Interest rate (as a percent)											15.79%
Income (expense) related to change in fair value				0.1		0.1
Principal amount outstanding				6.0		6.0
Estimated fair value of convertible notes				5.9		5.9
June 2023 A1 Convertible Notes
Related Party Transactions
Aggregate principal amount										$ 2.0
Interest rate (as a percent)										15.79%
Income (expense) related to change in fair value				0.1		0.1
Principal amount outstanding				2.0		2.0
Estimated fair value of convertible notes				$ 1.9		$ 1.9