Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

The following table presents the Group’s intangible assets as of the respective balance sheet dates:

	Purchased software			Internal -use software			Total			Total
	RMB			RMB			RMB			US$
Net balance as of December 31, 2021		358			250			608			88
Additions		31			-			31			3
Amortization expense		(103	)		(250	)		(353	)		(50	)
Net balance as of December 31, 2022		286			-			286			41

Schedule of Estimated Amortization Expenses for the Intangible Assets

The annual estimated amortization expenses for the intangible assets for each of the next five years are as follows:

	RMB		US$
2023		85		11
2024		70		10
2025		70		10
2026		61		10
		286		41