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SEGMENT REPORTING - Net revenue by country based upon sales location that predominately represents customer location (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022 CNY (¥)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 CNY (¥)	Dec. 31, 2020 CNY (¥)
SEGMENT REPORTING
Total Revenues	¥ 472,085	$ 68,446	¥ 485,633	¥ 223,011
PRC
SEGMENT REPORTING
Total Revenues	¥ 472,085	$ 68,446	¥ 485,633	199,370
Singapore
SEGMENT REPORTING
Total Revenues				¥ 23,641

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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