Annual report pursuant to Section 13 and 15(d)

Liquidity - Additional Information (Detail)

v2.4.1.9
Liquidity - Additional Information (Detail) (USD $)
Dec. 31, 2014
Jun. 30, 2014
Financial_Institution
Dec. 31, 2013
Line of Credit Facility [Line Items]      
Percentage of borrowings from FHLB 0.27%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate    
Total borrowing capacity based on pledged collateral $ 649,500,000hafc_BorrowingCapacityBasedOnPledgedCollateral    
Borrowing capacity available based on pledged collateral 499,500,000hafc_BorrowingCapacityAvailableBasedOnPledgedCollateral    
Bank's FHLB borrowings 150,000,000us-gaap_AdvancesFromFederalHomeLoanBanks   127,546,000us-gaap_AdvancesFromFederalHomeLoanBanks
Borrowings 0hafc_Borrowing    
Line of credit   95,000,000us-gaap_LineOfCredit  
Number of financial institutions   3hafc_NumberOfFinancialInstitutions  
Hanmi Bank [Member]      
Line of Credit Facility [Line Items]      
Broker deposits 99,000us-gaap_GoodFaithAndMarginDepositsWithBrokerDealers
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
   
Total borrowing capacity based on pledged collateral 649,500,000hafc_BorrowingCapacityBasedOnPledgedCollateral
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
  343,300,000hafc_BorrowingCapacityBasedOnPledgedCollateral
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Borrowing capacity available based on pledged collateral 499,500,000hafc_BorrowingCapacityAvailableBasedOnPledgedCollateral
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
  215,800,000hafc_BorrowingCapacityAvailableBasedOnPledgedCollateral
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Bank's FHLB borrowings 150,000,000us-gaap_AdvancesFromFederalHomeLoanBanks
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
  127,500,000us-gaap_AdvancesFromFederalHomeLoanBanks
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Borrowing percentage of assets 3.54%hafc_BorrowingPercentageOfAssets
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
  4.17%hafc_BorrowingPercentageOfAssets
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Amount available from borrowing source 59,500,000hafc_AmountAvailableFromBorrowingSource
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
   
Carrying value for loans pledged by Bank 82,300,000hafc_CarryingValueForLoansPledgedByBank
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
   
Borrowings 0hafc_Borrowing
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
   
Maximum borrowing capacity of line of credit     $ 100,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
Hanmi Bank [Member] | Maximum [Member]      
Line of Credit Facility [Line Items]      
Percentage of borrowings from FHLB 30.00%us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember