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Commitments and Contingencies - Narrative (Detail) - USD ($) | Aug. 02, 2020 | May 03, 2020 | [1] | Aug. 04, 2019
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Commitments and Contingencies Disclosure [Line Items] |  |  |
Accounts payable for capital expenditures | $ 333,000 | $ 107,000 | $ 50,000
Mattress Fabrics [Member] | Capital Addition Purchase Commitments [Member] |  |  |
Commitments and Contingencies Disclosure [Line Items] |  |  |
Open purchase commitments for equipment | $ 2,000,000.0 |  |
[1] | Derived from audited financial statements.

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- Definition The carrying value as of the balance sheet date of obligations incurred and payable for the purchase of a building and equipment that are to be repaid within one year. + References No definition available. + Details
Name: | culp_AccountsPayableCapitalExpendituresCurrent
Namespace Prefix: | culp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Commitments and contingencies disclosure. + References No definition available. + Details
Name: | culp_CommitmentsAndContingenciesDisclosureLineItems
Namespace Prefix: | culp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier. + References No definition available. + Details
Name: | us-gaap_PurchaseObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=culp_MattressFabricsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis=us-gaap_CapitalAdditionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |