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Prepaid expenses and others (Details Narrative)
¥ in Thousands
12 Months Ended
Dec. 31, 2017
CNY (¥)
Integer
Dec. 31, 2016
CNY (¥)
Disclosure of transactions between related parties [line items]    
Prepayment for property ¥ 2,561 ¥ 2,561
Wuhan City [Member]    
Disclosure of transactions between related parties [line items]    
Prepayment for property ¥ 14,900  
Office space, meters | Integer 1,492