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Document And Entity Information
Aug. 20, 2025
Document Information [Line Items]  
Entity, Registrant Name Atlanticus Holdings Corporation
Document, Type 8-K
Document, Period End Date Aug. 20, 2025
Entity, Incorporation, State or Country Code GA
Entity, File Number 000-53717
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
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0001464343
CommonStockNoParValue Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security Common stock, no par value
Trading Symbol ATLC
Security Exchange Name NASDAQ
SeriesBCumulativePerpetualPreferredStockNoParValue7625 Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security 7.625% Series B Cumulative Perpetual Preferred Stock, no par value
Trading Symbol ATLCP
Security Exchange Name NASDAQ
SeniorNotesDue20266125 Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security 6.125% Senior Notes due 2026
Trading Symbol ATLCL
Security Exchange Name NASDAQ
SeniorNotesDue2029925 Custom [Member]  
Document Information [Line Items]  
Title of 12(b) Security 9.25% Senior Notes due 2029
Trading Symbol ATLCZ
Security Exchange Name NASDAQ