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Credit Facility (Narrative) (Details) - USD ($)
12 Months Ended
Jun. 03, 2023
May 28, 2022
May 29, 2021
Line Of Credit Facility [Line Items]      
Interest costs incurred $ 583,000 $ 403,000 $ 213,000
Credit Agreement [Member]      
Line Of Credit Facility [Line Items]      
Debt instrument, term 5 years    
Maximum borrowing capacity $ 250,000,000    
Available additional capacity 200,000,000    
Amount outstanding $ 0 $ 0  
Interest period 1 month    
Floor rate 0.00%    
Maximum total funded debt to capitalization ratio 50.00%    
Minimum tangible net worth, amount $ 700,000,000    
Minimum tangible net worth, percentage of net income 50.00%    
Threshold of voting control in related entities that requires compliance with covenant 100.00%    
Minimum amount of company voting stock 50.00%    
Credit facility benchmark in computing dividend payments $ 50,000,000    
Credit Agreement [Member] | Minimum [Member]      
Line Of Credit Facility [Line Items]      
Commitment fee 0.15%    
Credit Agreement [Member] | Maximum [Member]      
Line Of Credit Facility [Line Items]      
Commitment fee 0.25%    
Credit Agreement [Member] | Base Rate [Member] | Minimum [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 0.00%    
Credit Agreement [Member] | Base Rate [Member] | Maximum [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 0.75%    
Credit Agreement [Member] | Base Rate, Federal Funds [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 0.50%    
Credit Agreement [Member] | SOFR [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 0.10%    
Credit Agreement [Member] | SOFR [Member] | Minimum [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 1.00%    
Credit Agreement [Member] | SOFR [Member] | Maximum [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 1.75%    
Credit Agreement [Member] | SOFR, One Month [Member] [Member]      
Line Of Credit Facility [Line Items]      
Basis spread on variable rate 1.00%    
Credit Agreement [Member] | Standby Letters of Credit [Member]      
Line Of Credit Facility [Line Items]      
Maximum borrowing capacity $ 15,000,000    
Amount outstanding 4,300,000    
Credit Agreement [Member] | Swingline [Member]      
Line Of Credit Facility [Line Items]      
Maximum borrowing capacity $ 15,000,000