Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Apr. 14, 2023	Jun. 30, 2022
Document And Entity Information [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37527
Entity Registrant Name	XCEL BRANDS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0307819
Entity Address, Address Line One	1333 Broadway, 10th Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10018
City Area Code	347
Local Phone Number	727-2474
Title of 12(b) Security	Common Stock, $0.001 par value per share
Trading Symbol	XELB
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 11,906,000
Entity Common Stock, Shares Outstanding		19,624,860
Auditor Name	Marcum LLP
Auditor Firm ID	688
Auditor Location	New York, NY
Entity Central Index Key	0001083220
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Amendment Flag	false