v3.10.0.1
Document and Entity Information - shares
6 Months Ended
Sep. 30, 2018
Oct. 26, 2018
Document Information [Line Items]    
Entity Registrant Name HAWKINS INC  
Entity Central Index Key 0000046250  
Document Type 10-Q  
Document Period End Date Sep. 30, 2018  
Amendment Flag false  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --03-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   10,720,704