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Prepaid Expenses and Other Current Assets (Tables) | 12 Months Ended
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Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Prepaid Expenses and Other Current Assets | Prepaid expenses and other current assets consist of the following:
|  | December 31, |
|  | 2013 |  |  | 2014 |
|  | RMB |  |  | RMB |  |  | US$ |
Rental deposits |  |  | 2,105 |  |  |  | 843 |  |  |  | 136 |
Prepayments |  |  | 7,769 |  |  |  | 42,120 |  |  |  | 6,789 |
Staff advances |  |  | 867 |  |  |  | 2,435 |  |  |  | 392 |
Interest receivable |  |  | 1,602 |  |  |  | 12,040 |  |  |  | 1,940 |
Receivables from third-party payment platform |  |  | — |  |  |  | 12,283 |  |  |  | 1,980 |
Other receivables |  |  | 944 |  |  |  | 4,190 |  |  |  | 675 |
|  |  | 13,287 |  |  |  | 73,911 |  |  |  | 11,912 |

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- Definition Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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