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FAIR VALUE MEASUREMENTS (Narrative) (Details) - Nonrecurring [Member] ¥ in Thousands, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2019 USD ($) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2019 CNY (¥) | Dec. 31, 2018 CNY (¥)
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items] |  |  |  |
Carrying amount of long lived assets held for use | $ 1,269 |  | ¥ 8,834 |
Long-lived assets held and used | 285 |  | ¥ 1,985 | ¥ 3,467
Impairment of long-lived assets | $ 984 | ¥ 6,849 |  |

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- Definition Carrying amount as of the balance sheet date of impaired long-lived assets held for use. + References No definition available. + Details
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- Definition Fair Value Inputs Assets Liabilities Quantitative Information [Line Items] + References No definition available. + Details
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- Definition The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale) and long-lived assets held for abandonment, exchange or sale. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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