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Fair Value - Narrative (Detail) - USD ($)
3 Months Ended 6 Months Ended
May 03, 2020
Nov. 01, 2020
Nov. 03, 2019
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Short-term investments - available for sale $ 923,000 $ 5,500,000 $ 0
Amortized cost of held-to-maturity investments 6,300,000 5,800,000  
Fair value of held-to-maturity investments 6,400,000 5,800,000 0
Long-term investments (Rabbi Trust) 7,834,000 [1] 8,060,000 7,575,000
Tradenames 540,000 $ 540,000 7,232,000
Read Window Products, LLC [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Impairment charge 143,000    
Continuing Operation [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Asset impairments - continuing operations 13,600,000    
Continuing Operation [Member] | Read Window Products, LLC [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Impairment charge 143,000    
Tradenames 540,000    
Discontinued Operations [Member] | eLuxury [Member] | Home Accessories [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Impairment charge 6,600,000    
Discontinued Operations [Member] | eLuxury [Member] | Home Accessories [Member] | Trade Names [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Impairment charge 4,200,000    
Discontinued Operations [Member] | eLuxury [Member] | Home Accessories [Member] | Goodwill [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Impairment charge 2,400,000    
Minimum [Member] | Investments (Held-To-Maturity) [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Investment maturity period   2 years  
Maximum [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Investment remaining maturity period   2 years  
Maximum [Member] | Investments (Held-To-Maturity) [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Investment maturity period   10 years  
Short-term Investments [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Accumulated unrealized gain (loss) on investments (9,000) $ (29,000)  
Current Expected Credit Loses [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Accumulated unrealized gain (loss) on investments   (29,000)  
Long-term Investments (Rabbi Trust) [Member]      
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]      
Accumulated unrealized gain (loss) on investments $ 19,000 $ 55,000 $ 55,000
[1] Derived from audited financial statements.