XML 54 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2019
Mar. 10, 2020
Jun. 30, 2019
Cover [Abstract]      
Entity Registrant Name CONSUMER PORTFOLIO SERVICES INC    
Entity Central Index Key 0000889609    
Document Type 10-K    
Document Period End Date Dec. 31, 2019    
Amendment Flag false    
Current Fiscal Year End Date --12-31    
Entity File Number 1-14116    
Entity a Well-known Seasoned Issuer No    
Entity a Voluntary Filer No    
Entity's Reporting Status Current Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business true    
Entity Shell Company false    
Entity Incorporation, State or Country Code CA    
Entity Public Float     $ 61,511,026
Entity Common Stock, Shares Outstanding   22,558,918  
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2019