Foreclosed Assets - Additional Information (Detail)	9 Months Ended
Sep. 30, 2018 USD ($)
Banking and Thrift, Interest [Abstract]
Minimum book balance for appraisal on all foreclosed assets	$ 250,000

Excess carrying amount for new appraisal on all real estate owned on annual basis.

No definition available.

Name:	hfbc_ExcessCarryingAmountForNewAppraisalOnAllRealEstateOwnedOnAnnualBasis
Namespace Prefix:	hfbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration