Annual report pursuant to Section 13 and 15(d)

Liquidity - Additional Information (Detail)

v3.19.3.a.u2
Liquidity - Additional Information (Detail) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Jun. 30, 2014
Dec. 31, 2012
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 17,100,000      
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Amount of Advances 90,000,000.0 $ 55,000,000.0    
Broker deposits $ 264,200,000 351,300,000    
Percentage of borrowings from FHLB (up to) 30.00%      
Total borrowing capacity based on pledged collateral $ 1,110,000,000 924,400,000    
Borrowing capacity available based on pledged collateral 878,400,000 $ 729,400,000    
Amount available from borrowing source 29,600,000      
Carrying value for loans pledged by Bank 30,200,000      
Borrowings $ 0      
Maximum borrowing capacity of line of credit       $ 100,000,000.0