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NET INCOME/LOSS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share | The following table sets forth the computation of basic and diluted net income (loss) per share for the periods indicated:
|  | Years ended December 31, |
|  | 2016 |  |  | 2017 |  |  | 2018 |
|  | RMB |  |  | RMB |  |  | RMB |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Numerator for basic and diluted (loss) income per share |  |  | (35,700 | ) |  |  | 46,463 |  |  |  | 44,990 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Denominator for basic (loss) income per share weighted average ordinary shares outstanding |  |  | 38,469,234 |  |  |  | 38,826,800 |  |  |  | 41,342,597 |
Denominator for diluted (loss) income per share weighted average ordinary shares outstanding |  |  | 38,469,234 |  |  |  | 39,303,760 |  |  |  | 41,671,763 |
Basic (loss) income per share |  |  | (0.93 | ) |  |  | 1.20 |  |  |  | 1.09 |
Diluted (loss) income per share |  |  | (0.93 | ) |  |  | 1.18 |  |  |  | 1.08 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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