Restructuring Activities - Summary of Restructuring Expense and Restructuring Related Charges (Parenthetical) (Detail) - USD ($)		12 Months Ended
		Apr. 28, 2024		Apr. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring expense		$ 636,000	[1]	$ 1,396,000	[2]
Exit and Disposal Activity [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expense and restructuring related charges	[3],[4]	676,000		1,494,000
Restructuring expense				51,000
Exit and Disposal Activity [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring related charge		$ 40,000		$ 98,000

[1] Restructuring expense of $636,000 for fiscal 2024 represents impairment charges related to equipment of $329,000 and employee termination benefits of $103,000 related to the discontinuation of production of cut and sewn upholstery kits at the company's facility in Ouanaminthe, Haiti. In addition, during the fourth quarter of fiscal 2024, restructuring expense of $204,000 was incurred for employee termination benefits related to the closure of the upholstery fabrics finishing operation located in Shanghai, China.

[2] Restructuring expense of $1.4 million for fiscal 2023 relates to both our restructuring activities for our cut and sew upholstery fabrics operations located in Shanghai, China, which occurred during the second quarter of fiscal 2023, and located in Ouanaminthe, Haiti, which occurred during the third and fourth quarters of fiscal 2023. Restructuring expense represents employee termination benefits of $507,000, lease termination costs of $481,000, impairment losses totaling $357,000 that relate to leasehold improvements and equipment, and $51,000 for other associated costs.

[3] Of the total $1.5 million, $1.4 million and $98,000 were recorded within restructuring expense and cost of sales, respectively, in the Consolidated Statement of Net Loss for the twelve-month period ending April 30, 2023.

[4] Of the total $676,000, $636,000 and $40,000 were recorded within restructuring expense and cost of sales, respectively, in the Consolidated Statement of Net Loss for the twelve-month period ending April 28, 2024.