XML 31 R14.htm IDEA: XBRL DOCUMENT
v3.26.1

ACCOUNTS RECEIVABLE | 12 Months Ended
--- | ---
Dec. 31, 2025
ACCOUNTS RECEIVABLE |
ACCOUNTS RECEIVABLE | 7.ACCOUNTS RECEIVABLE ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As at December 31,
​ | ​ | 2024 | ​ | 2025 | ​ | 2025
​ | ​ ​ ​ | RMB | ​ ​ ​ | RMB | ​ ​ ​ | US$
Accounts receivable |  | 94,052 | ​ | 90,205 | ​ | 12,899
Allowance for credit losses |  | (42,884) | ​ | (46,156) | ​ | (6,600)
Accounts receivable, net |  | 51,168 | ​ | 44,049 | ​ | 6,299
​ The roll forward in the allowance for credit losses were as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | For the Years Ended December 31,
​ | ​ | 2023 | ​ | 2024 | ​ | 2025 | ​ | 2025
​ | ​ ​ ​ | RMB | ​ ​ ​ | RMB | ​ ​ ​ | RMB | ​ ​ ​ | US$
Balance at the beginning of the year |  | 7,764 | ​ | 30,486 | ​ | 42,884 | ​ | 6,132
Provisions for the year | ​ | 22,752 | ​ | 12,857 | ​ | 3,994 | ​ | 571
Reversal of provisions from prior periods due to subsequent cash collection during the year | ​ | (30) | ​ | (420) | ​ | — | ​ | —
Amounts written off during the year |  | — | ​ | (39) | ​ | (722) | ​ | (103)
Balance at the end of the year |  | 30,486 | ​ | 42,884 | ​ | 46,156 | ​ | 6,600
​ Provisions for allowance for doubtful debts are recorded in “general and administrative expenses” in the consolidated statements of comprehensive loss. Accounts receivable with carrying value of RMB14,745 and RMB18,873 (US$2,699) were used to secure certain bank borrowings as at December 31, 2024 and 2025 respectively (note 19).

X
- Definition The entire disclosure for claims held for amounts due to entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/310-10/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482925/835-30-45-2 + Details
Name: | us-gaap_LoansNotesTradeAndOtherReceivablesDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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