Stock-Based Compensation - Summary of Grants of Time-Based Restricted Stock Unit Awards Associated with Key Member of Management (Detail) - Time-Based Restricted Stock Units [Member] - $ / shares							12 Months Ended
		Jan. 08, 2024	Sep. 28, 2023	Sep. 06, 2022	Aug. 10, 2022	Jul. 22, 2021	Apr. 28, 2024	Apr. 30, 2023	May 01, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units Awarded							174,753	119,687	37,991
Senior Executives and Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units Awarded	[1]	14,758	100,068	25,114	78,228	30,835
Price Per Share	[1],[2]	$ 5.61	$ 5.59	$ 4.58	$ 5.06	$ 14.75
Vesting Period	[1]	31 months	34 months		3 years	3 years
Outside Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units Awarded	[3]		59,928
Price Per Share	[2],[3]		$ 5.59
Vesting Period	[3]		1 year
Minimum [Member] | Senior Executives and Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	[1]			2 years
Maximum [Member] | Senior Executives and Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period	[1]			3 years

[1] Time-based restricted stock units awarded to senior executives and key employees.

[2] Price per share represents the closing price of our common stock on the date the respective award was granted.

[3] Time-based restricted stock units award to outside directors.