XML 39 R43.htm IDEA: XBRL DOCUMENT
v3.20.1

ACCOUNTS RECEIVABLE (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2019
ACCOUNTS RECEIVABLE |
Schedule of Accounts Receivable |
|  | As at December 31,
|  | 2018 |  | 2019 |  | 2019
|  | RMB |  | RMB |  | US$
Accounts receivable |  | 90,453 |  | 80,878 |  | 11,618
Allowance for doubtful accounts |  | (3,585) |  | (7,147) |  | (1,027)
Accounts receivable, net |  | 86,868 |  | 73,731 |  | 10,591
The rollforward in the allowance for doubtful accounts were as follows:
|  | For the Years Ended December 31,
|  | 2017 |  | 2018 |  | 2019 |  | 2019
|  | RMB |  | RMB |  | RMB |  | US$
Balance at the beginning of the year |  | 57 |  | 12,969 |  | 3,585 |  | 515
Provisions for the year |  | 14,840 |  | 1,303 |  | 4,510 |  | 648
Reversal of provisions from prior periods due to subsequent cash collection during the year |  | — |  | (709) |  | (221) |  | (32)
Amounts written off during the year |  | (1,928) |  | (9,989) |  | (734) |  | (105)
Foreign exchange gain or loss |  | — |  | 11 |  | 7 |  | 1
Balance at the end of the year |  | 12,969 |  | 3,585 |  | 7,147 |  | 1,027

X
- References No definition available. + Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration