XML 63 R47.htm IDEA: XBRL DOCUMENT
v3.25.1

ACCOUNTS RECEIVABLE (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2024
ACCOUNTS RECEIVABLE |
Schedule of accounts receivable | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at December 31,
​ | ​ | 2023 | ​ | 2024 | ​ | 2024
​ |  | RMB |  | RMB |  | US$
Accounts receivable |  | 103,982 | ​ | 94,052 | ​ | 12,885
Allowance for credit losses |  | (30,486) | ​ | (42,884) | ​ | (5,875)
Accounts receivable, net |  | 73,496 | ​ | 51,168 | ​ | 7,010
​ The roll forward in the allowance for credit losses were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Years Ended December 31,
​ | ​ | 2022 | ​ | 2023 | ​ | 2024 | ​ | 2024
​ |  | RMB |  | RMB |  | RMB |  | US$
Balance at the beginning of the year |  | 4,932 | ​ | 7,764 | ​ | 30,486 | ​ | 4,177
Provisions for the year | ​ | 2,832 | ​ | 22,752 | ​ | 12,857 | ​ | 1,761
Reversal of provisions from prior periods due to subsequent cash collection during the year | ​ | — | ​ | (30) | ​ | (420) | ​ | (58)
Amounts written off during the year |  | — | ​ | — | ​ | (39) | ​ | (5)
Balance at the end of the year |  | 7,764 | ​ | 30,486 | ​ | 42,884 | ​ | 5,875

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 -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration