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Note Q - Long-term Debt (Details Textual) - USD ($)
Nov. 01, 2017
Jun. 27, 2021
Mar. 28, 2021
Jun. 01, 2020
Dividends Payable, Amount Per Share (in dollars per share) $ 5.00      
Senior Notes [Member]        
Debt Instrument, Fixed Charge Coverage Ratio 2.0      
Debt Instrument, Priority Secured Leverage Ratio 0.40      
Debt Instrument Secured Leverage Ratio 3.75      
Debt Instrument, Event of Default, Percentage Ownership Enabling the Declaration of Due and Payable 25.00%      
Senior Notes [Member] | In the Event of Chang of Control Offer [Member]        
Debt Instrument, Redemption Price, Percentage 101.00%      
Senior Notes [Member] | In the Event the Company Sells Certain Assets and Fails to Use the Proceeds as Required [Member]        
Debt Instrument, Redemption Price, Percentage 100.00%      
Senior Notes [Member] | Senior Secured 2025 Notes [Member]        
Proceeds from Issuance of Long-term Debt, Total $ 150,000,000      
Debt Instrument, Interest Rate, Stated Percentage 6.625% 6.625% 6.625%  
Debt Instrument, Face Amount $ 135,000,000      
Debt Instrument, Repurchased Face Amount       $ 10,000,000
Senior Notes [Member] | Senior Secured 2020 Notes [Member]        
Debt Instrument, Interest Rate, Stated Percentage 10.00%