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ACQUISITIONS AND DISPOSALS (Schedule of Actual Results from Acquisition Date) (Details) - 12 months ended Dec. 31, 2019 - Tianjin Jiatai, SH Rongchi, Oriental, Heze MZJH, Wuxi MZJH And SH MZJH [Member]
¥ in Thousands, $ in Thousands
CNY (¥)
USD ($)
Business Acquisition [Line Items]    
Net revenues ¥ 366 $ 53
Net loss ¥ (7,902) $ (1,135)