Goodwill - Narrative (Detail) - USD ($)		3 Months Ended		12 Months Ended
		May 03, 2020	Feb. 02, 2020	May 03, 2020	May 02, 2021	Apr. 28, 2019
Goodwill [Line Items]
goodwill		$ 0		$ 0	$ 0
Asset impairment charges	[1]			13,712,000
Continuing Operation [Member]
Goodwill [Line Items]
goodwill						$ 13,600,000
Asset impairment charges				13,600,000
Continuing Operation [Member] | Mattress Fabrics [Member]
Goodwill [Line Items]
goodwill						11,500,000
Continuing Operation [Member] | Upholstery Fabrics [Member]
Goodwill [Line Items]
goodwill						2,100,000
Discontinued Operations [Member]
Goodwill [Line Items]
goodwill						$ 13,600,000
Asset impairment charges		$ 2,400,000	$ 11,200,000	$ 13,600,000

[1] During fiscal 2020, we incurred asset impairment charges totaling $13.7 million, of which $13.6 million and $143,000 pertained to goodwill associated with our mattress and upholstery fabric segments and a tradename associated Read, respectively. Of this $13.7 million, $11.5 million and $2.2 million pertained to the mattress fabrics segment and upholstery fabrics segment, respectively.