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Description of Business and Summary of Significant Accounting Policies, Business (Details) | Dec. 31, 2021 Store State
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Description of Business and Summary of Significant Accounting Policies [Abstract] |
Number of showrooms | Store | 121
Number of states | State | 16

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- Definition The number of showrooms through which the entity operates in as of the balance sheet date. + References No definition available. + Details
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Namespace Prefix: | hvt_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- 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

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- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
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Balance Type: | na
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