v3.19.1
Document and Entity Information - USD ($)
12 Months Ended
Feb. 02, 2019
Mar. 11, 2019
Aug. 03, 2018
Document And Entity Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Feb. 02, 2019    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Trading Symbol ZUMZ    
Entity Registrant Name Zumiez Inc    
Entity Central Index Key 0001318008    
Current Fiscal Year End Date --02-02    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Accelerated Filer    
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Common Stock, Shares Outstanding   25,520,923  
Entity Public Float     $ 456,572,006