Annual report pursuant to Section 13 and 15(d)

FHLB Advances and Other Borrowings - Additional Information (Detail)

v2.4.1.9
FHLB Advances and Other Borrowings - Additional Information (Detail) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures [Abstract]      
Pledged loans receivable, carrying value $ 757,600,000us-gaap_LoansReceivableNet    
Total borrowing capacity available from the collateral 649,500,000hafc_BorrowingCapacityBasedOnPledgedCollateral    
Available borrowing capacity 499,500,000hafc_BorrowingCapacityAvailableBasedOnPledgedCollateral    
Available for use through the Fed Discount Window 59,500,000hafc_AvailableBorrowingFromFederalReserveDiscountWindow    
Pledged loans, carrying values 82,300,000hafc_CarryingValueOfLoansPledgedAsCollateralForFhlbAdvances    
Borrowings 0hafc_Borrowing    
Advances from the FHLB 150,000,000us-gaap_AdvancesFromFederalHomeLoanBanks 127,546,000us-gaap_AdvancesFromFederalHomeLoanBanks  
Increase in the advances from the FHLB 22,500,000us-gaap_ProceedsFromFederalHomeLoanBankAdvances    
Interest expense on FHLB advances and other borrowings $ 151,000us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm $ 151,000us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm $ 165,000us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesShortTerm
Weighted-average interest rates 0.21%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear 2.28%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear 5.27%us-gaap_FederalHomeLoanBankAdvancesActivityForYearAverageInterestRateForYear