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Loans - Troubled Debt Restructurings, Disaggregated by Type of Concession and by Loan Type (Detail) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
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Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | $ 5,999 hafc_NonAccrualTdrsDeferralOfPrincipal | $ 4,116 hafc_NonAccrualTdrsDeferralOfPrincipal
Non-Accrual TDRs, Deferral of Principal and Interest | 1,699 hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest | 1,444 hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest
Non-Accrual TDRs, Reduction of Principal and Interest | 3,165 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest | 3,246 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest
Non-Accrual TDRs, Extension of Maturity | 3,753 hafc_NonAccrualTdrsExtensionOfMaturity | 3,650 hafc_NonAccrualTdrsExtensionOfMaturity
Non-Accrual TDRs, Total | 14,616 hafc_NonAccrualTdrs | 12,456 hafc_NonAccrualTdrs
Accrual TDRs, Deferral of Principal | 6,479 hafc_AccrualTdrsDeferralOfPrincipal | 9,004 hafc_AccrualTdrsDeferralOfPrincipal
Accrual TDRs, Deferral of Principal and Interest | 223 hafc_AccrualTdrsDeferralOfPrincipalAndInterest | 226 hafc_AccrualTdrsDeferralOfPrincipalAndInterest
Accrual TDRs, Reduction of Principal and Interest | 1,451 hafc_AccrualTdrsReductionOfPrincipalAndInterest | 1,549 hafc_AccrualTdrsReductionOfPrincipalAndInterest
Accrual TDRs, Extension of Maturity | 3,212 hafc_AccrualTdrsExtensionOfMaturity | 3,038 hafc_AccrualTdrsExtensionOfMaturity
Accrual TDRs | 11,365 hafc_AccrualTdrs | 13,817 hafc_AccrualTdrs
Consumer loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Reduction of Principal and Interest | 127 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerLoansAutoFinancingReceivableMember | 131 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerLoansAutoFinancingReceivableMember
Non-Accrual TDRs, Total | 127 hafc_NonAccrualTdrs / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerLoansAutoFinancingReceivableMember | 131 hafc_NonAccrualTdrs / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = us-gaap_ConsumerLoansAutoFinancingReceivableMember
Real estate loans [Member] | Retail [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Extension of Maturity | 2,003 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember | 2,032 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember
Non-Accrual TDRs, Total | 2,003 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember | 2,032 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember
Accrual TDRs, Deferral of Principal | 304 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember | 306 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember
Accrual TDRs | 304 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember | 306 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialRealEstateRetailMember
Real estate loans [Member] | Hotel/motel [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 1,073 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember | 1,115 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember
Non-Accrual TDRs, Deferral of Principal and Interest | (64)hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember | (53)hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember
Non-Accrual TDRs, Total | 1,009 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember | 1,062 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember
Accrual TDRs, Deferral of Principal | 1,802 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember | 1,807 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember
Accrual TDRs | 1,802 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember | 1,807 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_HotelAndMotelMember
Real estate loans [Member] | Gas station [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 3,033 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember | 1,075 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember
Non-Accrual TDRs, Total | 3,033 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember | 1,075 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember
Accrual TDRs, Deferral of Principal | 352 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember | 2,335 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember
Accrual TDRs | 352 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember | 2,335 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_GasolineStationMember
Real estate loans [Member] | Other [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 932 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 943 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Non-Accrual TDRs, Deferral of Principal and Interest | 1,766 hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 1,498 hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Non-Accrual TDRs, Reduction of Principal and Interest | 407 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 433 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Non-Accrual TDRs, Extension of Maturity | 20 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 24 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Non-Accrual TDRs, Total | 3,125 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 2,898 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Accrual TDRs, Deferral of Principal | 2,318 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 2,343 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Accrual TDRs, Reduction of Principal and Interest | 771 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 782 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Accrual TDRs, Extension of Maturity | 1,373 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 1,372 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Accrual TDRs | 4,462 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember | 4,497 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_OtherRealEstateLoansMember
Real estate loans [Member] | Residential property [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 729 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember | 742 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember
Non-Accrual TDRs, Total | 729 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember | 742 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember
Accrual TDRs, Extension of Maturity | 306 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember | 308 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember
Accrual TDRs | 306 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember | 308 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_RealEstateLoanMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_ResidentialPropertyRealEstateLoanMember
Commercial and industrial loans [Member] | Commercial term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 12 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 14 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Non-Accrual TDRs, Deferral of Principal and Interest | (3)hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | (1)hafc_NonAccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Non-Accrual TDRs, Reduction of Principal and Interest | 2,507 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 2,556 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Non-Accrual TDRs, Extension of Maturity | 1,632 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 1,481 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Non-Accrual TDRs, Total | 4,148 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 4,050 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Accrual TDRs, Deferral of Principal | 53 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 57 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Accrual TDRs, Deferral of Principal and Interest | 223 hafc_AccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 226 hafc_AccrualTdrsDeferralOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Accrual TDRs, Reduction of Principal and Interest | 481 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 567 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Accrual TDRs, Extension of Maturity | 1,533 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 1,358 hafc_AccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Accrual TDRs | 2,290 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember | 2,208 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialTermLoansMember
Commercial and industrial loans [Member] | Commercial lines of credit [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Non-Accrual TDRs, Deferral of Principal | 220 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 227 hafc_NonAccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Non-Accrual TDRs, Reduction of Principal and Interest | 124 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 126 hafc_NonAccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Non-Accrual TDRs, Extension of Maturity | 98 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 113 hafc_NonAccrualTdrsExtensionOfMaturity / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Non-Accrual TDRs, Total | 442 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 466 hafc_NonAccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Accrual TDRs, Deferral of Principal | 1,650 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 2,156 hafc_AccrualTdrsDeferralOfPrincipal / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Accrual TDRs | 1,650 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember | 2,156 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_CommercialLinesOfCreditMember
Commercial and industrial loans [Member] | International loans [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Accrual TDRs, Reduction of Principal and Interest | 199 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_InternationalLoansMember | 200 hafc_AccrualTdrsReductionOfPrincipalAndInterest / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_InternationalLoansMember
Accrual TDRs | $ 199 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_InternationalLoansMember | $ 200 hafc_AccrualTdrs / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = hafc_CommercialAndIndustrialLoansMember / us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis = hafc_InternationalLoansMember

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