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TAXATION (Schedule of Deferred Taxes) (Parenthetical) (Details) ¥ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 CNY (¥) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 CNY (¥)
Income Tax Contingency [Line Items] |  |  |
Operating Loss Carryforwards | ¥ 238,670 | $ 34,376 |
Current Portion [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Deferred tax assets offset against deferred tax liabilities | ¥ 12,234 | $ 1,763 | ¥ 16,867
Minimum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Net operating loss carry forwards expiration year | 2017 |  |
Maximum [Member] |  |  |
Income Tax Contingency [Line Items] |  |  |
Net operating loss carry forwards expiration year | 2021 |  |

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