Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Aug. 03, 2020
Document And Entity Information
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2020
Document Transition Report	false
Entity File Number	001-35629
Entity Registrant Name	TILE SHOP HOLDINGS, INC.
Entity Incorporation State Country Code	DE
Entity Tax Identification Number	45-5538095
Entity Address, Address Line 1	14000 Carlson Parkway
Entity Address City Or Town	Plymouth
Entity Address State Or Province	MN
Entity Address Postal Zip Code	55441
City Area Code	763
Local Phone Number	852-2950
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		51,673,420
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Amendment Flag	false
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001552800