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Fair Value Measurement | 12 Months Ended
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Dec. 31, 2022
Fair Value Measurement |
Fair Value Measurement | 18.Fair Value Measurement Recurring When available, the Group uses quoted market prices to determine the fair value of an asset or liability. If quoted market prices are not available, the Group will measure fair value using valuation techniques that use, when possible, current market-based or independently sourced market parameters, such as interest rate and currency rate. The following table sets forth the Company’s financial instruments measured or disclosed at fair value on a recurring basis by level within the fair value hierarchy as of December 31, 2022. No balance of financial instruments measured or disclosed at fair value on a recurring basis as of December 31, 2021. ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurement at
​ | ​ | December 31, 2022 Using
​ | ​ | Quoted Prices | ​ | Significant | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | in Active Market | ​ | Other | ​ | Unobservable | ​ | Fair Value at
​ | ​ | for Identical | ​ | Observable | ​ | inputs | ​ | December 31,
​ | ​ | Assets (Level 1) | ​ | Inputs (Level 2) | ​ | (Level 3) | ​ | 2022
​ |  | RMB |  | RMB |  | RMB |  | RMB |  | US$
Short-term investments | ​ | — | ​ | 111,353 | ​ | — | ​ | 111,353 | ​ | 16,145
Total |  | — |  | 111,353 |  | — |  | 111,353 |  | 16,145
​ The Company’s other financial instruments, including cash and cash equivalents, restricted cash, accounts receivable, other receivables (included in “Prepayments and other current assets”), accounts payable, other payables (included in “Accrued expenses and other current liabilities”) and short-term loans are not measured at fair value in the consolidated balance sheets, as their carrying values approximated fair value due to their short-term maturity. Non-recurring As of December 31, 2021 and 2022, the group had no financial assets or financial liabilities that are measured at fair value at non-recurring basis. The Group’s non-financial assets, such as intangible assets, property, equipment and leasehold improvement and other non-current assets, would be measured at fair value on non-recurring basis whenever events or changes in circumstances indicate that the carrying value may no longer be recoverable.

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -URI https://asc.fasb.org/topic&trid=2155941 + Details
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