Annual report pursuant to Section 13 and 15(d)

Liquidity - Additional Information (Detail)

v3.24.0.1
Liquidity - Additional Information (Detail) - USD ($)
Dec. 31, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Securities available for sale $ 865,739,000 $ 853,838,000
State of California time deposits 2,454,867,000  
Borrowings 0  
Line of credit 115,000,000.0  
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 7,500,000 10,600,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 325,000,000 350,000,000.0
State of California time deposits 120,000,000 120,000,000
Broker deposits $ 58,300,000 83,300,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,540,000,000 1,540,000,000
Borrowing capacity available based on pledged collateral 1,090,000,000.00 $ 1,070,000,000.00
Amount available from borrowing source 23,200,000  
Market value for loans pledged by Bank 24,800,000  
Borrowings 0  
Maximum borrowing capacity of line of credit 100,000,000  
Hanmi Bank | U.S. Treasury Securities    
Line of Credit Facility [Line Items]    
Securities available for sale $ 32,400,000