Stock Option Plans - Schedule of below is a summary of stock option activity (Detail) - $ / shares	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Schedule Of Share Based Compensation Stock Options Activity [Line Items]
Number of options, Beginning balance	2,781,064
Number of options, Options assumed from Kintara upon merger closing	6,345
Number of options, Forfeited and canceled	(249,961)
Number of options, Exercised	(180,689)
Number of options, Granted	4,047,059
Number of options, Ending balance	6,403,818	2,781,064
Number of options, Exercisable	2,270,626
Weighted Average Exercise Price, Beginning balance	$ 2.97
Weighted Average Exercise Price, Options assumed from Kintara upon merger closing	1,074.4
Weighted Average Exercise Price, Forfeited and canceled	3.53
Weighted Average Exercise Price, Exercised	2.66
Weighted Average Exercise Price, Granted	4.76
Weighted Average Exercise Price, Ending balance	5.11	$ 2.97
Weighted Average Exercise Price, Exercisable	$ 5.83
Weighted Average Contractual Life, Outstanding	7 years 5 months 8 days	4 years 5 months 4 days
Weighted Average Contractual Life, Options assumed from Kintara upon merger closing	6 years 10 months 28 days
Weighted Average Contractual Life, Exercisable	3 years 3 months 18 days

Schedule Of Share Based Compensation Stock Options Activity Line Items

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Share based compensation arrangement by share based payment award options other increases decreases in period weighted average remaining contractual term.

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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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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 addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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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 price at which grantees could acquire or could have acquired the underlying shares with respect to any other type of change in shares reserved for issuance.

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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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Number of share options (or share units) exercised during the current period.

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