SHARE-BASED COMPENSATION - SCHEDULE OF OPTION ACTIVITY UNDER 2021 PLAN AND 2018 PLAN (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2024	Dec. 31, 2023
SHARE-BASED COMPENSATION
Options Outstanding, beginning balance	5,230,344
Weighted-Average Exercise Price Outstanding, beginning balance	$ 13.66
Weighted- Average Remaining Contractual Term, Outstanding	4 years 11 months 23 days	8 years 1 month 28 days
Aggregate Intrinsic Value Outstanding, beginning balance	$ 49,728
Options Granted	1,489,191
Weighted-Average Exercise Price, Granted	$ 19.70
Options Exercised	(265,482)
Weighted-Average Exercise Price, Exercised	$ 4.67
Options, Cancelled/Forfeited	(2,739,949)
Weighted-Average Exercise Price, Cancelled/Forfeited	$ 18.84
Options Outstanding, ending balance	3,714,104	5,230,344
Weighted-Average Exercise Price Outstanding, ending balance	$ 12.91	$ 13.66
Aggregate Intrinsic Value Outstanding, ending balance	$ 12	$ 49,728
Options, Vested and exercisable	2,791,181
Weighted-Average Exercise Price, Vested and exercisable	$ 12.06
Weighted- Average Remaining Contractual Term, Vested and exercisable	3 years 11 months 12 days
Aggregate Intrinsic Value, Vested and exercisable	$ 12

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For presentations that combine terminations, 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 or that expired.

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Weighted average price of options that were either forfeited or expired.

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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 exercisable or convertible options. 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 exercisable options that may 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 exercisable or convertible options. 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 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 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 exercisable or convertible options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the 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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