Equity Incentive Plan - Stock-Based Compensation Expense - Summary of Stock Option Award Activity (Details) - USD ($)	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]
Number of Stock Options Outstanding as of December 31, 2025	4,417,727
Number of Stock Options Granted	2,161,829
Issuance of common stock upon exercise of stock options, shares	0
Number of Stock Options Forfeited	(130,324)
Number of Stock Options Expired	0
Number of Stock Options Outstanding as of June 30, 2026	6,449,232	4,417,727
Number of Stock Options Exercisable as of June 30, 2026	2,952,805
Number of Stock Options Vested and expected to vest as of June 30, 2026	6,449,232
Weighted-Average Exercise Price Outstanding as of December 31, 2025	$ 1.5
Weighted-Average Exercise Price Granted	0.98
Weighted-Average Exercise Price Exercised	0
Weighted-Average Exercise Price Forfeited	1.06
Weighted-Average Exercise Price Expired	0
Weighted-Average Exercise Price Outstanding as of June 30, 2026	1.35	$ 1.5
Weighted-Average Exercise Price Exercisable as of June 30, 2026	1.72
Weighted-Average Exercise Price Vested and expected to vest as of June 30, 2026	$ 1.35
Weighted-Average Remaining Contractual Life Outstanding	8 years 25 days	7 years 10 months 24 days
Weighted-Average Remaining Contractual Life Exercisable as of June 30, 2026	6 years 8 months 8 days
Weighted-Average Remaining Contractual Life Vested and expected to vest as of June 30, 2026	8 years 25 days
Aggregate Intrinsic Value Outstanding	$ 285	$ 88
Aggregate Intrinsic Value Exercisable as of June 30, 2026	181
Aggregate Intrinsic Value Vested and expected to vest as of June 30, 2026	$ 285

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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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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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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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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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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 can acquire the shares reserved for issuance under the stock option plan.

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Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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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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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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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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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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

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