| Cover | Dec. 02, 2020 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 2, 2020 |
| Entity File Number | 000-51300 |
| Entity Registrant Name | Zumiez Inc. |
| Entity Central Index Key | 0001318008 |
| Entity Tax Identification Number | 91-1040022 |
| Entity Incorporation, State or Country Code | WA |
| Entity Address, Address Line One | 4001 204th Street SW |
| Entity Address, City or Town | Lynnwood |
| Entity Address, State or Province | WA |
| Entity Address, Postal Zip Code | 98036 |
| City Area Code | 425 |
| Local Phone Number | 551-1500 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | ZUMZ |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
