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SEGMENT REPORTING (Schedule of Net Revenue by Country based upon Sales Location that Predominately represents Customer Location) (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 CNY (¥)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)
Segment reporting [Line Items]
Net Revenues	¥ 223,011	$ 34,178	¥ 198,363	¥ 190,898
CHINA
Segment reporting [Line Items]
Net Revenues	199,370	30,555	164,167	149,548
SINGAPORE
Segment reporting [Line Items]
Net Revenues	¥ 23,641	$ 3,623	¥ 34,196	¥ 41,350

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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