Quarterly report pursuant to Section 13 or 15(d)

Liquidity - Additional Information (Detail)

v3.24.1.u1
Liquidity - Additional Information (Detail) - USD ($)
Mar. 31, 2024
Dec. 31, 2023
Line of Credit Facility [Line Items]    
Amount available from borrowing source $ 22,300,000 $ 23,200,000
Borrowings 0 0
Line of credit 115,000,000.0 115,000,000.0
State of California time deposits 2,495,761,000 2,454,867,000
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 6,700,000 7,500,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 172,500,000 325,000,000
Broker deposits $ 43,300,000 58,300,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,630,000,000 1,540,000,000
Borrowing capacity available based on pledged collateral 1,330,000,000 1,090,000,000.00
Amount available from borrowing source 22,300,000  
Carrying value for loans pledged by Bank 28,100,000  
Borrowings 0  
Maximum borrowing capacity of line of credit 100,000,000.0  
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 $ 34,300,000 $ 32,400,000