XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2025
Oct. 30, 2025
Document And Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
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 550 Seventh Avenue, 11th 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 Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   4,806,776
Entity Central Index Key 0001083220  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Amendment Flag false