Aggregate initial number of common shares reserved for future issuance.

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Percentage of aggregate number of shares of common stock outstanding on last day of preceding year added to plan.

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Share based compensation arrangement By share based payment award number Of additional shares reserved.

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Number of shares unvailable for grant.

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Share-based compensation arrangement by share-based payment award, vesting rights, anniversary period

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Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement.

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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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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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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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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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.

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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 under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to 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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Percentage of vesting of award under share-based payment arrangement.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Period Type:

Stock-based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 01, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Mar. 20, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares reserved for future issuance		8,355,111		8,355,111
Common stock, shares issued		10,750,156		10,750,156		5,754,505
Stock issued on exercise of stock options, Shares				1,091
Number of options, forfeited				228,475
Number of options, granted				631,250
Acceleration of stock awards				$ 10,500
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 190	$ 161	361	$ 2,242
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense		$ 296	$ 302	$ 539	9,347
Graybug
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Acceleration of stock awards					10,500
Graybug \| Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense					1,900
Graybug \| General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense					$ 8,600
2020 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares unavailable for grant (shares)		223,108		223,108
2006 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period				10 years
Award vesting rights, percentage				25.00%
Award vesting period				1 year
Vesting period				36 months
2023 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares reserved for future issuance		55,060		55,060			1,000,000
Percentage of aggregate number of shares of common stock outstanding on last day of preceding year added to plan				5.00%
Number of options, forfeited				228,475
Increase in number of shares reserved for issuance	287,725
Shares available for grant (shares)		55,060		55,060
2023 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock shares reserved for future issuance		122,545		122,545
Common stock shares reserved for future issuance, initial		65,000		65,000
Weighted averagefair value options, granted				$ 4.17	$ 4.47
Total fair value of shares vested				$ 800	$ 11,600
Common stock, shares issued		195,000		195,000
Stock issued on exercise of stock options, Shares				1,091
Percentage of aggregate number of shares of common stock outstanding on last day of preceding year added to plan				1.00%
Increase in number of shares reserved for issuance				57,545
Stock Issued				0
Total unrecognized stock-based compensation expenses related to outstanding unvested stock awards		$ 3,600		$ 3,600
Total unrecognized stock-based compensation expenses related to outstanding unvested stock awards weighted-average term of recognition				2 years 9 months 18 days