Quarterly report pursuant to Section 13 or 15(d)

Liquidity - Additional Information (Detail)

v3.24.3
Liquidity - Additional Information (Detail) - USD ($)
Sep. 30, 2024
Dec. 31, 2023
Line of Credit Facility [Line Items]    
Amount available from borrowing source $ 29,500,000 $ 23,200,000
Borrowings 0 0
Line of credit 115,000,000.0 115,000,000.0
State of California time deposits 2,373,310,000 2,454,867,000
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 13,700,000 7,500,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 300,000,000.0 325,000,000
Broker deposits $ 13,200,000 58,300,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,660,000,000 1,540,000,000
Borrowing capacity available based on pledged collateral 1,240,000,000 1,090,000,000.00
Amount available from borrowing source 29,500,000  
Carrying value for loans pledged by Bank 31,500,000  
Borrowings 0 0
Maximum borrowing capacity of line of credit 100,000,000  
State of California time deposits 120,000,000 120,000,000
U.S. Treasury securities | Hanmi Bank    
Line of Credit Facility [Line Items]    
Debt securities fair value $ 32,900,000 $ 32,400,000