XML 133 R119.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Off-Balance Sheet Commitments - Distribution of Undisbursed Loan Commitments (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Loss Contingencies [Line Items] |  |
Total undisbursed loan commitments | $ 347,236 | $ 330,871
Commitments to extend credit [Member] |  |
Loss Contingencies [Line Items] |  |
Total undisbursed loan commitments | 318,634 | 310,987
Standby letters of credit [Member] |  |
Loss Contingencies [Line Items] |  |
Total undisbursed loan commitments | 19,294 | 15,669
Commercial letters of credit [Member] |  |
Loss Contingencies [Line Items] |  |
Total undisbursed loan commitments | $ 9,308 | $ 4,215

X
- Definition Undisbursed loan commitments. + References No definition available. + Details
Name: | hafc_UndisbursedLoanCommitments
Namespace Prefix: | hafc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_CommitmentsToExtendCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=hafc_CommercialLettersOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |