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Short-term Investments | 12 Months Ended
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Dec. 31, 2022
Cash and Cash Equivalents [Abstract] |
Short-term Investments |
4. | Short-term Investments
Short-term investments as of December 31, 2021 consisted of the following:
|  | As of December 31, 2021 |
|  | Cost or Amortized cost |  |  | Gross unrecognized holding gains |  |  | Gross unrecognized holding losses |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value carrying amount |
|  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |  |  | RMB |
Trading debt investments |  |  | 63,741 |  |  |  | 1,367 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 65,108 |
|  |  | 63,741 |  |  |  | 1,367 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 65,108 |
The Group had no short-term investments as of December 31, 2022. Trading debt investments include debt investments issued by a private equity fund outside the PRC amounting to RMB65,108 as of December 31, 2021. The Company disposed of the debt investments in 2022. For the years ended December 31, 2020, 2021 and 2022, the Group recognized interest and investment income of RMB478, RMB1,818 and RMB2,771 (US$402) from short-term investments, respectively. For the year ended December 31, 2021, the realized gain on the available- for -sale debt investments held by the Group that was reclassified from Accumulative other comprehensive income to Interest and investment income amounted RMB1,729. There was no such reclassification in 2020 and 2022.

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- Definition The entire disclosure of the components of cash, cash equivalents, and short-term investments. Short-term investments may include current marketable securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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