Annual report pursuant to Section 13 and 15(d)

Liquidity - Additional Information (Detail)

v3.20.4
Liquidity - Additional Information (Detail) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Line of Credit Facility [Line Items]    
Borrowings $ 0  
Line of credit 115,000,000.0  
Hanmi Bank    
Line of Credit Facility [Line Items]    
Cash on deposit with bank subsidiary 17,300,000 $ 17,100,000
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 150,000,000.0 90,000,000.0
Broker deposits $ 193,700,000 264,200,000
Percentage of borrowings from FHLB (up to) 30.00%  
Total borrowing capacity based on pledged collateral $ 1,730,000,000 1,110,000,000
Borrowing capacity available based on pledged collateral 1,440,000,000 $ 878,400,000
Amount available from borrowing source 26,300,000  
Carrying value for loans pledged by Bank 27,300,000  
Borrowings 0  
Maximum borrowing capacity of line of credit $ 100,000,000.0