XML 21 R1.htm IDEA: XBRL DOCUMENT v3.19.1
Document and Entity Information - shares
 12 Months Ended
Dec. 31, 2018
Apr. 30, 2019
Entity Registrant Name TuanChe Ltd  
Entity Central Index Key 0001743340  
Trading Symbol tc  
Entity Current Reporting Status Yes  
Entity Filer Category Non-accelerated Filer  
Current Fiscal Year End Date --12-31  
Entity Well-known Seasoned Issuer No  
Document Type 20-F  
Document Period End Date Dec. 31, 2018  
Amendment Flag false  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus FY  
Entity Shell Company false  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Entity Voluntary Filers No  
Class A ordinary shares    
Entity Common Stock, Shares Outstanding   234,030,828
Class B ordinary shares    
Entity Common Stock, Shares Outstanding   55,260,580