Quarterly report pursuant to Section 13 or 15(d)

Cover Page

v3.20.2
Cover Page - shares
 9 Months Ended
Sep. 30, 2020
Nov. 02, 2020
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2020  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q3  
Trading Symbol HAFC  
Entity Registrant Name HANMI FINANCIAL CORPORATION  
Entity Central Index Key 0001109242  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   30,720,110
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity File Number 000-30421  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 95-4788120  
Entity Address, Address Line One 3660 Wilshire Boulevard  
Entity Address, Address Line Two Penthouse Suite A  
Entity Address, City or Town Los Angeles  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 90010  
City Area Code 213  
Local Phone Number 382-2200  
Entity Interactive Data Current Yes  
Title of 12(b) Security Common Stock, $0.001 par value  
Security Exchange Name NASDAQ  
Document Quarterly Report true  
Document Transition Report false