INTANGIBLE ASSETS, NET (Narrative) (Details) ¥ in Thousands, $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
|
Dec. 31, 2017
CNY (¥)
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
CNY (¥)
|
Dec. 31, 2015
CNY (¥)
|
|
| Finite-Lived Intangible Assets [Line Items] | ||||
| Amortization expenses | ¥ 6,229 | $ 957 | ¥ 10,760 | ¥ 19,176 |
| Acquired Finite Lived Intangible Assets [Member] | ||||
| Finite-Lived Intangible Assets [Line Items] | ||||
| Amortization expenses | 6,229 | 957 | 10,760 | 19,176 |
| Impairment loss on intangible assets | ¥ 598 | $ 92 | ¥ 9,810 | ¥ 0 |