| Cover | Oct. 28, 2020 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Oct. 28, 2020 |
| Entity File Number | 000-51315 |
| Entity Registrant Name | Citi Trends, Inc. |
| Entity Central Index Key | 0001318484 |
| Entity Tax Identification Number | 52-2150697 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 104 Coleman Boulevard |
| Entity Address, City or Town | Savannah |
| Entity Address, State or Province | GA |
| Entity Address, Postal Zip Code | 31408 |
| City Area Code | 912 |
| Local Phone Number | 236-1561 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, $0.01 par value |
| Trading Symbol | CTRN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
