Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2020
Mar. 15, 2021
Jun. 28, 2020
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2020    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Trading Symbol LMFA    
Entity Registrant Name LM FUNDING AMERICA, INC.    
Entity Central Index Key 0001640384    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   26,982,980  
Entity Public Float     $ 6,943,000
Entity Interactive Data Current Yes    
Security Exchange Name NASDAQ    
Title of 12(b) Security Common Stock par value $0.001 per share    
Entity File Number 001-37605    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 47-3844457    
Entity Address, Address Line One 1200 Platt Street    
Entity Address, Address Line Two Suite 1000    
Entity Address, City or Town Tampa    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33602    
City Area Code 813    
Local Phone Number 222-8996    
Document Annual Report true    
Document Transition Report false