v3.8.0.1
Document and Entity Information - shares
9 Months Ended
Oct. 29, 2017
Dec. 04, 2017
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Oct. 29, 2017  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Trading Symbol dlth  
Entity Registrant Name DULUTH HOLDINGS INC.  
Entity Central Index Key 0001649744  
Current Fiscal Year End Date --01-28  
Entity Filer Category Accelerated Filer  
Class A common stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   3,364,200
Class B common stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   29,097,107