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Intangible Assets - Summary of Intangible Assets (Parenthetical) (Detail) - USD ($) $ in Thousands | Aug. 02, 2020 | May 03, 2020 | Aug. 04, 2019
--- | --- | --- | ---
Intangible Assets [Line Items] |  |  |
Intangible assets | $ 3,286 | $ 3,380 | $ 10,354
Continuing Operation [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Intangible assets |  |  | 3,800
Discontinued Operation [Member] |  |  |
Intangible Assets [Line Items] |  |  |
Intangible assets |  |  | $ 6,600

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- Definition Intangible assets excluding discontinued operation. + References No definition available. + Details
Name: | culp_IntangibleAssetsExcludingDiscontinuedOperation
Namespace Prefix: | culp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Intangible Assets [Line Items] + References No definition available. + Details
Name: | culp_IntangibleAssetsLineItems
Namespace Prefix: | culp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Intangible assets net including discontinued operation. + References No definition available. + Details
Name: | culp_IntangibleAssetsNetIncludingDiscontinuedOperation
Namespace Prefix: | culp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldforsaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |