Document and Entity Information - USD ($)
$ in Millions
12 Months Ended
Apr. 02, 2017
May 26, 2017
Oct. 02, 2016
Document and Entity Information [Abstract]      
Document Type 10-K    
Document Period End Date Apr. 02, 2017    
Entity Registrant Name HAWKINS INC    
Entity Central Index Key 0000046250    
Amendment Flag false    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --04-02    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 409.3
Entity Common Stock, Shares Outstanding   10,619,541