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SHORT TERM INVESTMENTS - Interest income (Details) ¥ in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($)	Dec. 31, 2020 CNY (¥)	Dec. 31, 2019 CNY (¥)	Dec. 31, 2018 CNY (¥)
SHORT TERM INVESTMENTS
Interest income recognized on held-to-maturity investments	$ 81	¥ 548	¥ 1,904	¥ 5,836

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- Definition

Amount of operating interest income, including amortization and accretion of premiums and discounts, on held-to-maturity securities.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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