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SHARE-BASED COMPENSATION - Summary of share options outstanding (Details) - USD ($)		12 Months Ended
	May 03, 2019	Dec. 31, 2022	Dec. 31, 2021
Number of shares
Balance at the beginning of period		167,151
Forfeited		145,478
Balance at the end of period		21,673	167,151
Exercisable, at the end of period		21,673
Weighted average exercise price
Balance at the beginning of period		$ 0.02
Balance at the end of period		0.02	$ 0.02
Exercisable, at the end of period		0.02
Weighted Average grant date fair value per share
Balance at the beginning of period		3.17
Balance at the end of period		3.17	$ 3.17
Exercisable		$ 3.17
Weighted average remaining contractual years
Outstanding at the end of the period (in years)		6 years 4 months 2 days	11 months 26 days
Expected to vest at the end of the period (in years)		0 years
Exercisable at the end of the period (in years)		6 years 4 months 2 days
Weighted average intrinsic value
Outstanding at the end of the period (in dollars)		$ 0.27	$ 1.12
Exercisable at the end of the period (in dollars)		$ 0.27
Kaixin Auto 2019 Plan
Number of shares
Granted	2,186,364

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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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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 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 grant-date fair value of non-vested options outstanding.

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