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Description of Business and Summary of Significant Accounting Policies, Revenue Recognition (Details) | 12 Months Ended
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Dec. 31, 2020
Revenue Recognition [Abstract] |
Percentage of sales internally financed | 1.00%
Payment period for receivables from internally financed sales | 1 year

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- Definition Period of time between the sale being internally financed by the Company and the related receivable is paid, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | hvt_PaymentPeriodForReceivablesFromInternallyFinancedSales
Namespace Prefix: | hvt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Definition The percentage of sales internally financed by the Company. + References No definition available. + Details
Name: | hvt_PercentageOfSalesInternallyFinanced
Namespace Prefix: | hvt_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_RevenueRecognitionAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration