Taxation (Details 4) - CNY (¥)
¥ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Deferred tax assets, current        
Net operating loss carry forwards ¥ 5,282 ¥ 6,565    
Accrued salaries and other expenses 6,241 3,329    
Advertising expenses 14,082 18,799    
Government subsidies 169 169    
Other 760 616    
Total: deferred tax assets, current 26,534 29,478    
Total: deferred tax assets 26,534 29,478    
Less: valuation allowance        
Total: valuation allowance (18,594) (20,496) ¥ (19,863) ¥ (17,315)
Net deferred tax assets 7,940 8,982    
Deferred tax liabilities, non-current        
Withholding income tax for dividends 9,441 6,517    
Net operating loss carry forwards        
Less: valuation allowance        
Total: valuation allowance (4,337) (4,667)    
Advertising expenses        
Less: valuation allowance        
Total: valuation allowance (13,876) (15,448)    
Other        
Less: valuation allowance        
Total: valuation allowance ¥ (381) ¥ (381)