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ACCOUNTS RECEIVABLE, NET | 12 Months Ended
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Dec. 31, 2018
Receivables [Abstract] |
ACCOUNTS RECEIVABLE, NET | 6. ACCOUNTS RECEIVABLE, NET Accounts receivable consisted of the following:
|  | As of December 31, |
|  | 2017 |  |  | 2018 |
|  | RMB |  |  | RMB |
Accounts receivable |  |  | 25,257 |  |  |  | 21,667 |
Less: Allowance for doubtful accounts |  |  | (746 | ) |  |  | (3,535 | )
Accounts receivable, net |  |  | 24,511 |  |  |  | 18,132 |
Allowance for doubtful accounts:
|  | As of December 31, |
|  | 2017 |  |  | 2018 |
|  | RMB |  |  | RMB |
Balance at beginning of year |  |  | - |  |  |  | (746 | )
Addition (Note i) |  |  | (746 | ) |  |  | (4,616 | )
Written off (Note i) |  |  | - |  |  |  | 1,827 |
Balance at end of year |  |  | (746 | ) |  |  | (3,535 | )
(Note i) Full provision was provided to receivables due from different customers due to the remote collectability, and certain provision was written off after all collection efforts have been exhausted and the potential for recovery was remote.

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- Definition The entire disclosure for financing receivables. Examples of financing receivables include, but are not limited to, loans, trade accounts receivables, notes receivable, credit cards, and receivables relating to a lessor's right(s) to payment(s) from a lease other than an operating lease that is recognized as assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -URI http://asc.fasb.org/topic&trid=2196771 + Details
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- References No definition available. + Details
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