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Description of Business and Summary of Significant Accounting Policies, Business (Details)	Dec. 31, 2020 Store State
Description of Business and Summary of Significant Accounting Policies [Abstract]
Number of showrooms | Store	120
Number of states | State	16

X

- Definition

The number of showrooms through which the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	hvt_NumberOfShowrooms
Namespace Prefix:	hvt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration