Accrued Expenses - Narrative (Detail) - USD ($)	Jan. 31, 2021	May 03, 2020		Feb. 02, 2020
Payables and Accruals [Line Items]
Accrued expenses	$ 13,574,000	$ 5,854,000		$ 7,975,000
Current accrued expenses	$ 13,574,000	5,687,000	[1]	7,257,000
Long-term accrued expenses		$ 167,000	[1]	233,000
Current Liabilities - Discontinued Operation [Member]
Payables and Accruals [Line Items]
Accrued expenses				$ 485,000

[1] Derived from audited financial statements.