Net Income from Continuing Operations Per Share - Narrative (Detail) - shares	3 Months Ended	9 Months Ended
Feb. 02, 2020	Jan. 31, 2021	Feb. 02, 2020
Common Stock Awards [Member]
Antidilutive securities due to decrease in stock price excluded from computation of earnings from continuing operations per share	9,010	9,136	5,854

Antidilutive securities due to decrease in stock price excluded from computation of earnings from continuing operations per share.

No definition available.

Name:	culp_AntidilutiveSecuritiesDueToDecreaseInStockPriceExcludedFromComputationOfEarningsFromContinuingOperationsPerShare
Namespace Prefix:	culp_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration