Quarterly report pursuant to Section 13 or 15(d)

Liquidity - Additional Information (Detail)

v3.23.3
Liquidity - Additional Information (Detail) - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Line of Credit Facility [Line Items]    
Amount available from borrowing source $ 23,900,000 $ 22,000,000
Borrowings 0  
Line of credit 115,000,000.0  
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 8,700,000 10,600,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 162,500,000 350,000,000
Broker deposits $ 73,100,000 83,300,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,610,000,000 1,540,000,000
Borrowing capacity available based on pledged collateral 1,320,000,000 1,070,000,000.00
Amount available from borrowing source 23,900,000  
Carrying value for loans pledged by Bank 24,700,000  
Borrowings 0  
Maximum borrowing capacity of line of credit 100,000,000.0  
U.S. Treasury securities | Hanmi Bank    
Line of Credit Facility [Line Items]    
Debt securities fair value $ 27,100,000 $ 17,700,000