Long Term Investment (Tables)

12 Months Ended

Dec. 31, 2021

Long-Term Investments [Abstract]

Schedule of long term investment

	Equity investments accounted for using the equity method(ii)			Cost method investments without readily determinable fair value(i)			Total			Cost method investments without readily determinable fair value
	RMB			RMB			RMB			US$
Balance as of January 1, 2021		-			5,000			5,000			785
Additions		75,000			54,725			129,725			20,356
Share of loss in equity method investee		(2,998	)		-			(2,998	)		(470	)
Disposal		-			(30,000	)		(30,000	)		(4,708	)
Impairment		-			-			-			-
Balance as of December 31, 2021		72,002			29,725			101,727			15,963