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ACQUIRED INTANGIBLE ASSETS, NET (Tables) | 12 Months Ended
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Dec. 31, 2018
ACQUIRED INTANGIBLE ASSETS, NET |
Schedule of intangible assets, net |
|  | As of December 31,
|  | 2017 |  | 2018
Trademark |  | — |  | 1,367
Student base |  | — |  | 3,632
Total costs |  | — |  | 4,999
Less: accumulated amortization |  | — |  | (508)
Intangible assets, net |  | — |  | 4,491

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