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ACCOUNTS RECEIVABLE (Tables)

12 Months Ended

Dec. 31, 2017

ACCOUNTS RECEIVABLE [Abstract]

Schedule of Accounts Receivable

		As at December 31,
		2016			2017			2017
		RMB			RMB			US$
Accounts receivable			189,646			144,921			22,274
Allowance for doubtful accounts			(57)			(12,969)			(1,993)
Accounts receivable, net			189,589			131,952			20,281

The movement in the allowance for doubtful accounts were as follows:

		For the Years Ended December 31,
		2015			2016			2017			2017
		RMB			RMB			RMB			US$
Balance at the beginning of the year			2,281			1,781			57			9
Acquisition of CHS			167			—			—			—
Provisions for the year			2,925			1,066			14,840			2,281
Reversal of provisions from prior periods due to subsequent cash collection during the year			(749)			—			—			—
Amounts written off during the year			(2,843)			(2,790)			(1,928)			(297)
Balance at the end of the year			1,781			57			12,969			1,993

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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://www.xbrl.org/2003/role/presentationRef
-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=6877327&loc=d3e13212-122682

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