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Accounts and notes receivable, net (Tables)

6 Months Ended

Jun. 30, 2021

Receivables [Abstract]

Schedule of Accounts Receivable

		As of
		December 31, 2020				June 30, 2021
		RMB				RMB				US$
Accounts and notes receivable			88,706				77,560				12,012
Less: allowance for doubtful accounts			(43,820	)			(39,420	)			(6,105	)
Total accounts and notes receivable, net			44,886				38,140				5,907

Schedule of Movement in Allowance for Doubtful Accounts

The following table presents the movement in the allowance for doubtful accounts:

		As of
		December 31, 2020				June 30, 2021
		RMB				RMB				US$
Balance at beginning of the period			28,516				43,820				6,787
Provisions			18,732				221				34
Write-offs			(3,428	)			(4,621	)			(716	)
Balance at end of the period			43,820				39,420				6,105

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- References

No definition available.

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Tabular disclosure of allowance for credit loss of financing receivable, classified as current.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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