Stock-Based Compensation - Schedule of stock option activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Weighted Average Remaining Term (years) and Aggregate Intrinsic Value
Weighted average grant date fair value	$ 3.27	$ 3.76
2023 Plan
Shares Underlying Options
Shares Underlying Options, Beginning	7,199,571
Shares Underlying Options, Granted	1,328,000
Shares Underlying Options, Exercised	(6,278)
Shares Underlying Options, Forfeited/canceled	(146,836)
Shares Underlying Options, Ending	8,374,457		7,199,571
Shares Underlying Options, Exercisable	4,461,304
Weighted Average Exercise Price
Weighted Average Exercise Price Outstanding, Beginning	$ 6.23
Weighted Average Exercise Price, Granted	3.82
Weighted Average Exercise Price, Exercised	4.06
Weighted Average Exercise Price, Forfeited/canceled	6.13
Weighted Average Exercise Price Outstanding, Ending	5.85		$ 6.23
Weighted Average Exercise Price, Exercisable	$ 7.46
Weighted Average Remaining Term (years) and Aggregate Intrinsic Value
Weighted Average Remaining Term (years), Outstanding	7 years 4 months 2 days		7 years 29 days
Weighted Average Remaining Term (years), Exercisable	5 years 9 months 7 days
Aggregate Intrinsic Value Outstanding	$ 2,679		$ 1,963
Aggregate Intrinsic Value, Exercised	4
Aggregate Intrinsic Value, Exercisable	$ 43

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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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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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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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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 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 grant-date fair value of options vested.

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

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