v3.26.3
Document And Entity Information
9 Months Ended
Sep. 30, 2026
Document Information [Line Items]  
Document Type S-3
Entity Registrant Name Atlanticus Holdings Corporation
Entity Incorporation, State or Country Code GA
Entity Tax Identification Number 58-2336689
Entity Address, Address Line One Five Concourse Parkway
Entity Address, Address Line Two Suite 300
Entity Address, City or Town Atlanta
Entity Address, State or Province GA
Entity Address, Postal Zip Code 30328
City Area Code 770
Local Phone Number 828-2000
Entity Filer Category Accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Central Index Key 0001464343
Amendment Flag false