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Note J - Long-term Debt (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
May 01, 2024
Dec. 19, 2023
Nov. 14, 2023
Nov. 01, 2023
May 01, 2023
Mar. 21, 2023
Feb. 14, 2023
Nov. 01, 2017
Mar. 31, 2024
Mar. 26, 2023
Dividends Payable, Amount Per Share               $ 5    
Senior Secured 2025 Notes [Member]                    
Repayments of Long-Term Debt   $ 20,177       $ 30,773        
Debt Instrument, Periodic Payment, Interest       $ 2,650 $ 2,650          
Interest Paid, Including Capitalized Interest, Operating and Investing Activities   177       773        
Extinguishment of Debt, Amount     $ 20,000       $ 30,000      
Debt Instrument, Redemption Price, Percentage     100.00%       100.00%      
Deferred Debt Issuance Cost, Writeoff   $ 169       $ 357        
Senior Secured 2025 Notes [Member] | Subsequent Event [Member]                    
Interest Paid, Including Capitalized Interest, Operating and Investing Activities $ 1,987                  
Senior Notes [Member]                    
Debt Instrument, Fixed Charge Coverage Ratio               2    
Debt Instrument, Priority Secured Leverage Ratio               0.4    
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               $ 150,000    
Debt Instrument, Interest Rate, Stated Percentage               6.625% 6.625% 6.625%
Senior Notes [Member] | Senior Secured 2020 Notes [Member]                    
Debt Instrument, Interest Rate, Stated Percentage               10.00%    
Repayments of Long-Term Debt               $ 135,000