Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Reconciliation and Income Statement Classification of Gains and Losses for All Assets and Liabilities (Parenthetical) (Detail)

v2.4.1.9
Fair Value Measurements - Reconciliation and Income Statement Classification of Gains and Losses for All Assets and Liabilities (Parenthetical) (Detail) (Equity securities [Member], USD $)
 3 Months Ended
Mar. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Number of equity securities 2hafc_NumberOfEquitySecurities
Security One [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Purchases, Issuances and Settlement $ 216,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_EquitySecuritiesMember
/ us-gaap_EquitySecuritiesByInvestmentObjectiveAxis
= hafc_SecurityOneMember
Security Two [Member]  
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]  
Purchases, Issuances and Settlement $ 200,000us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases
/ us-gaap_EligibleItemOrGroupForFairValueOptionAxis
= us-gaap_EquitySecuritiesMember
/ us-gaap_EquitySecuritiesByInvestmentObjectiveAxis
= hafc_SecurityTwoMember