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Commitments and Contingencies - Narrative (Detail) - USD ($)	Aug. 02, 2020	May 03, 2020	[1]	Aug. 04, 2019
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.

X

- 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

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Namespace Prefix:	culp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

X

- 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: