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Note Q - Long-term Debt (Details Textual) - USD ($)
Nov. 01, 2021
May 01, 2021
Nov. 01, 2017
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%  
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%  
Debt Instrument, Periodic Payment, Interest   $ 4,968,750    
Senior Notes [Member] | Senior Secured 2020 Notes [Member] | Subsequent Event [Member]        
Debt Instrument, Periodic Payment, Interest $ 4,968,750