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3. Casualty Loss (Details)
3 Months Ended
May 18, 2018
USD ($)
Oct. 28, 2018
USD ($)
Casualty Loss [Abstract]    
Number of Warehouses 2  
Insurance Deductible $ 500,000  
Casualty Loss $ 500,000  
Increase (Decrease) in Insurance Settlements Receivable   $ 409,000