Annual report pursuant to Section 13 and 15(d)

Loans - Troubled Debt Restructurings that Defaulted Subsequent to Modifications Occurring Within Previous Twelve Months, Disaggregated by Loan Class (Detail)

v2.4.1.9
Loans - Troubled Debt Restructurings that Defaulted Subsequent to Modifications Occurring Within Previous Twelve Months, Disaggregated by Loan Class (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
SecurityLoan
Dec. 31, 2013
SecurityLoan
Dec. 31, 2012
SecurityLoan
Financing Receivable, Modifications [Line Items]      
Number of Loans 6us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 4us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1 12us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Recorded Investment $ 3,561us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 $ 338us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1 $ 907us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
Real estate loans [Member] | Retail [Member]      
Financing Receivable, Modifications [Line Items]      
Number of Loans 1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialRealEstateRetailMember 		   
Recorded Investment 1,856us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialRealEstateRetailMember 		   
Real estate loans [Member] | Gas station [Member]      
Financing Receivable, Modifications [Line Items]      
Number of Loans   1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_GasolineStationMember 		 
Recorded Investment   90us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_GasolineStationMember 		 
Real estate loans [Member] | Other [Member]      
Financing Receivable, Modifications [Line Items]      
Number of Loans 3us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_OtherCommercialPropertyMember 		1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_OtherCommercialPropertyMember 		 
Recorded Investment 1,352us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_OtherCommercialPropertyMember 		125us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_RealEstateLoanMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_OtherCommercialPropertyMember 		 
Commercial and industrial loans [Member] | Commercial term [Member]      
Financing Receivable, Modifications [Line Items]      
Number of Loans   2us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialTermLoansMember 		11us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialTermLoansMember
Recorded Investment   123us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialTermLoansMember 		719us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ 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]      
Number of Loans 2us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialLinesOfCreditMember 		  1us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialLinesOfCreditMember
Recorded Investment $ 353us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialLinesOfCreditMember 		  $ 188us-gaap_FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= hafc_CommercialAndIndustrialLoansMember
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= hafc_CommercialLinesOfCreditMember