Document and Entity Information - USD ($)
12 Months Ended
Jan. 28, 2017
Mar. 21, 2017
Jul. 29, 2016
Document and Entity Information      
Entity Registrant Name Citi Trends Inc    
Entity Central Index Key 0001318484    
Document Type 10-K    
Document Period End Date Jan. 28, 2017    
Amendment Flag false    
Current Fiscal Year End Date --01-28    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 237,096,459
Entity Common Stock, Shares Outstanding   14,932,246  
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY