Inventories - Narrative (Details) - USD ($)	3 Months Ended			12 Months Ended
	Oct. 30, 2022	May 01, 2022	Oct. 31, 2021	Apr. 28, 2024	Apr. 30, 2023	May 01, 2022
Inventory [Line Items]
Non-cash inventory charges		$ 1,900,000		$ (1,600,000)	$ 5,800,000	$ 1,900,000
Write down to net realizable value				(1,628,000)	5,819,000	$ 1,927,000
Exit of Cut and Sew Upholstery Fabrics Operation [Member] | Shanghai, China [Member]
Inventory [Line Items]
Loss on disposal					98,000
Mattress Fabrics [Member]
Inventory [Line Items]
Non-cash inventory charges	$ 3,800,000			(1,600,000)
Write down to net realizable value	$ 2,900,000				2,900,000
Percentage of decline in net sales	35.80%
Gross margin percentage			15.00%
Gross margin percentage excluding non-cash inventory charges	(8.70%)
Upholstery Fabrics [Member]
Inventory [Line Items]
Non-cash inventory charges				(1,600,000)
Upholstery Fabrics [Member] | Disposal and Markdowns of Inventory [Member] | Ouanaminthe, Haiti [Member]
Inventory [Line Items]
Restructuring related charge				$ 40,000
Mattress and Upholstery Fabrics [Member]
Inventory [Line Items]
Non-cash inventory charges					$ 2,800,000