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BASIS OF PRESENTATION (Details) (Narrative)
¥ in Thousands, $ in Thousands
Jun. 30, 2020
USD ($)
Jun. 30, 2020
CNY (¥)
Dec. 31, 2019
CNY (¥)
Jun. 30, 2019
CNY (¥)
Dec. 31, 2018
CNY (¥)
Disclosure of quantitative information about right-of-use assets [line items]          
Exchange rate 1.00 1.00      
Net current liabilities | ¥   ¥ 25,200      
Shareholder's deficiency in assets | ¥   ¥ (24,973) ¥ (27,554) ¥ (24,775) ¥ (21,798)
USD [Member]          
Disclosure of quantitative information about right-of-use assets [line items]          
Exchange rate 7.0655 7.0655      
Net current liabilities | $ $ 3,570        
Shareholder's deficiency in assets | $ $ (3,533)