Document and Entity Information - USD ($)
12 Months Ended
Feb. 02, 2019
Apr. 02, 2019
Aug. 04, 2018
Document and Entity Information      
Entity Registrant Name Citi Trends Inc    
Entity Central Index Key 0001318484    
Document Type 10-K    
Document Period End Date Feb. 02, 2019    
Amendment Flag false    
Current Fiscal Year End Date --02-02    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 345,865,178
Entity Common Stock, Shares Outstanding   12,132,535  
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY