Intangible Assets - Narrative (Detail) - USD ($)	3 Months Ended	6 Months Ended
	May 03, 2020	Nov. 01, 2020	Nov. 03, 2019
Intangible Assets [Line Items]
Tradenames	$ 540,000	$ 540,000	$ 7,232,000
Gross carrying amount of customer relationships	3,100,000	3,100,000	3,100,000
Gross carrying amount of non-compete agreement	2,000,000.0	2,000,000.0	2,000,000.0
Customer Relationships [Member]
Intangible Assets [Line Items]
Accumulated amortization	877,000	1,000,000.0	727,000
Remaining amortization expense for the fiscal year		151,000
Remaining amortization expense for the first fiscal year		301,000
Remaining amortization expense for the second fiscal year		301,000
Remaining amortization expense for the third fiscal year		301,000
Remaining amortization expense for the fourth fiscal year		301,000
Remaining amortization expense for the fiscal year thereafter		$ 732,000
Weighted average remaining amortization period		7 years 1 month 6 days
Customer Relationships [Member] | Minimum [Member]
Intangible Assets [Line Items]
Useful life		9 years
Customer Relationships [Member] | Maximum [Member]
Intangible Assets [Line Items]
Useful life		17 years
Non-Compete Agreement [Member]
Intangible Assets [Line Items]
Useful life		15 years
Accumulated amortization	1,400,000	$ 1,500,000	$ 1,400,000
Remaining amortization expense for the fiscal year		37,000
Remaining amortization expense for the first fiscal year		76,000
Remaining amortization expense for the second fiscal year		76,000
Remaining amortization expense for the third fiscal year		76,000
Remaining amortization expense for the fourth fiscal year		76,000
Remaining amortization expense for the fiscal year thereafter		$ 224,000
Weighted average remaining amortization period		7 years 6 months
Read Window Products, LLC [Member]
Intangible Assets [Line Items]
Impairment charge	$ 143,000