The conversion ratio of options and RSU awards that were outstanding immediately prior to the Merger to common stock.

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Percentage of fully-diluted shares outstanding considered for annual increase of shares available for issuance.

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Amount of expense for award under share-based payment arrangement with earnout vesting criteria. Excludes amount capitalized.

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Amount of expense reversal for award under share-based payment arrangement with earnout vesting criteria. Excludes amount capitalized.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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

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No definition available.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of options outstanding, including both vested and non-vested options.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Share-based Compensation Stock Incentive Plans - Share-based Award Activity (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jul. 21, 2023 $ / shares shares	Dec. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Apr. 19, 2025 shares
Other than options, Weighted Average Exercise Price
Common Stock, Capital Shares Reserved for Future Issuance		30,318,838	827,586
Selling, general and administrative expenses
Other than options, Weighted Average Exercise Price
Share-based compensation expense \| $		$ 5,300	$ 4,700
Research and development expenses
Other than options, Weighted Average Exercise Price
Share-based compensation expense \| $		$ 1,600	$ 1,500
Restricted stock units
Other than options, Number of Shares
Granted		672,141
Other than options, Weighted Average Exercise Price
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		44 months
Performance Based Restricted Stock Units
Other than options, Weighted Average Exercise Price
Unrecognized compensation expense related to other than options \| $		$ 4,700
ABP Sub Inc. 2019 Incentive Award Plan
Options, Number of Shares
Outstanding, beginning of period		47,955
Outstanding, end of period		47,955	47,955
Exercisable, end of period		44,707
Options, Weighted Average Exercise Price
Outstanding, beginning of period \| $ / shares		$ 720
Options granted \| $ / shares	$ 720
Outstanding, end of period \| $ / shares		720	$ 720
Exercisable, end of period \| $ / shares		$ 720
Other than options, Weighted Average Exercise Price
Weighted average remaining contractual life of options outstanding		5 years	6 years
Unrecognized compensation expense related to non-vested stock options \| $		$ 200
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		1 month
Conversion ratio of options and RSU awards that were outstanding immediately prior to the Merger to common stock	1.078
Aggregate number of shares available for future grant	237,500
ABP Sub Inc. 2019 Incentive Award Plan \| Employee Stock Option
Other than options, Weighted Average Exercise Price
Share-based compensation expense \| $		$ 1,600	$ 2,900
Share-based compensation expense related \| $		(700)	$ 300
Share-based compensation expense reversal \| $		$ 1,000
ABP Sub Inc. 2019 Incentive Award Plan \| Restricted stock units
Other than options, Number of Shares
Outstanding, beginning of period		11,398
Vested		(1,639)
Forfeited		(408)
Outstanding, ending of period		9,351	11,398
Other than options, Weighted Average Exercise Price
Outstanding, beginning of period \| $ / shares		$ 780.48
Outstanding, ending of period \| $ / shares		$ 780.48	$ 780.48
Share-based compensation expense \| $		$ 1,300	$ 1,300
Unrecognized compensation expense related to non-vested stock options \| $		$ 1,700
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		12 months
AEON Biopharma Inc 2023 Incentive Award Plan
Other than options, Weighted Average Exercise Price
Aggregate number of shares available for future grant	17,846,923	40,398
Percentage of fully-diluted shares outstanding considered for annual increase of shares available for issuance	5.00%
AEON Biopharma Inc 2023 Incentive Award Plan \| Employee Stock Option
Options, Number of Shares
Outstanding, beginning of period		51,016
Outstanding, end of period		51,016	51,016
Exercisable, end of period		38,748
Options, Weighted Average Exercise Price
Outstanding, beginning of period \| $ / shares		$ 242.14
Outstanding, end of period \| $ / shares		242.14	$ 242.14
Other than options, Weighted Average Exercise Price
Weighted average fair value of options granted per share \| $ / shares		$ 0	$ 135.5
Weighted average remaining contractual life of options exercisable		8 years 6 months	9 years 6 months
Share-based compensation expense \| $		$ 2,700	$ 1,600
Unrecognized compensation expense related to non-vested stock options \| $		$ 2,600
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		7 months
AEON Biopharma Inc 2023 Incentive Award Plan \| Restricted stock units
Other than options, Number of Shares
Outstanding, beginning of period		14,215
Outstanding, ending of period		14,215	14,215
Other than options, Weighted Average Exercise Price
Outstanding, beginning of period \| $ / shares		$ 60.05
Outstanding, ending of period \| $ / shares		$ 60.05	$ 60.05
Share-based compensation expense \| $		$ 400	$ 100
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		8 months
Unrecognized compensation expense related to other than options \| $		$ 300
Employment Inducement Incentive Award 2025 Plan
Options, Number of Shares
Options granted		59,034
Options, Weighted Average Exercise Price
Options granted \| $ / shares		$ 0.41
Other than options, Weighted Average Exercise Price
Weighted average fair value of options granted per share \| $ / shares		$ 0.37
Weighted average remaining contractual life of options outstanding		9 years 3 months 18 days
Unrecognized compensation expense related to non-vested stock options \| $		$ 18
Weighted-average remaining requisite service period for which unrecognized compensation expense related to nonvested stock options expected to be recognized		40 months
Aggregate number of shares available for future grant		268,825
Employment Inducement Incentive Award 2025 Plan \| Class A member
Other than options, Weighted Average Exercise Price
Common Stock, Capital Shares Reserved for Future Issuance				1,000,000
Employment Inducement Incentive Award 2025 Plan \| Restricted stock units
Other than options, Weighted Average Exercise Price
Granted \| $ / shares		$ 0.65
Unrecognized compensation expense related to other than options \| $		$ 400