Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 28, 2019
Document And Entity Information    
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Entity Registrant Name TILE SHOP HOLDINGS, INC.  
Security 12b Title Common stock, $0.0001 par value  
Trading Symbol tts  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   50,883,029
Amendment Flag false  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001552800  
Current Fiscal Year End Date --12-31