Income Taxes - Summary of Taxes Paid (Refunded) (Parenthetical) (Detail)	3 Months Ended	6 Months Ended
Nov. 01, 2020 USD ($)	Aug. 02, 2020 USD ($)	Nov. 01, 2020 USD ($) Installment
Income Tax Disclosure [Abstract]
United States Federal - Alternative Minimum Tax (AMT) credit refunds			$ 1,500,000
Number of separate installments \| Installment			2
AMT credit carryforward remaining refundable balance amount received	$ 764,000	$ 746,000

Deferred tax assets tax credit carryforwards alternative minimum tax amount remaining refundable received.

No definition available.

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Namespace Prefix:	culp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration