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Note 4 - Convertible Securities and Credit Facilities (Details Textual)
 3 Months Ended
Feb. 26, 2024
USD ($)
Mar. 14, 2023
USD ($)
Feb. 26, 2023
Feb. 26, 2021
USD ($)
$ / shares
shares
Feb. 16, 2021
$ / shares
shares
Mar. 31, 2023
USD ($)
$ / shares
Dec. 31, 2022
USD ($)
$ / shares
Feb. 25, 2021
$ / shares
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares       $ 0.01   $ 0.01 $ 0.01  
Percentage Of Stock Of Material Domestic Subsidiaries Securing Credit Agreement           100.00%    
Percentage Of Stock Of Material First Tier Foreign Subsidiaries Securing Credit Agreement           65.00%    
Preferred Stock, No Par Value (in dollars per share) | $ / shares             $ 0  
Series B Preferred Stock [Member]                
Embedded Derivative, Fair Value of Embedded Derivative Liability       $ 1,000,000   $ 1,000,000 $ 1,000,000  
Preferred Stock, Dividend Rate, Percentage       4.00%        
Preferred Stock, No Par Value (in dollars per share) | $ / shares         $ 0      
Preferred Stock Issued, Fair Value       $ 95,000,000        
Temporary Equity, Liquidation Preference Per Share (in dollars per share) | $ / shares               $ 100
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares       $ 14.50        
Preferred Stock, Convertible, Threshold Trading Days       45        
Preferred Stock, Convertible, Threshold Consecutive Trading Days       60        
Series B Preferred Stock [Member] | Repurchase And Exchange Agreement [Member]                
Stock Issued During Period, Shares, New Issues (in shares) | shares         1,000,000      
Preferred Stock, Dividend Rate, Percentage         4.00%      
Series B Preferred Stock [Member] | Purchase Agreement [Member]                
Convertible Preferred Stock, Shares Issued upon Conversion (in shares) | shares       9.5238        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares       $ 10.50        
Series C Preferred Stock [Member]                
Embedded Derivative, Fair Value of Embedded Derivative Liability       $ 2,000,000        
Preferred Stock, Convertible, Threshold Trading Days     45          
Preferred Stock, Convertible, Threshold Consecutive Trading Days     60          
Series C Preferred Stock [Member] | Other Noncurrent Liabilities [Member]                
Embedded Derivative, Fair Value of Embedded Derivative Liability           $ 1,000,000 1,000,000  
Series C Preferred Stock [Member] | After February Twenty Six Two Thousand Twenty Three [Member]                
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger     200.00%          
Series C Preferred Stock [Member] | After February Twenty Six Two Thousand Twenty Four [Member]                
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger 150.00%              
Series C Preferred Stock [Member] | Purchase Agreement [Member]                
Stock Issued During Period, Shares, New Issues (in shares) | shares       1,000,000        
Preferred Stock, Dividend Rate, Percentage       5.00%        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares       $ 10        
Shares Issued, Price Per Share (in dollars per share) | $ / shares       $ 100        
Gross Proceeds From Issuance Of Preferred Stock And Preference Stock       $ 100        
Gross Proceeds Owed on Issuance of PreferredStock       $ 100,000,000        
Series C Preferred Stock [Member] | Dividend And Other Rights [Member]                
Preferred Stock, Dividend Rate, Percentage       5.00%        
Amended A B L Credit Agreement [Member]                
Excess Availability Percentage Of Lender Commitments Below which Triggering Cash Dominion Control           12.50%    
Lender Commitments Threshold Trigger Excess Availability Amount           $ 11,250,000    
Excess Availability Below Which Fixed Charge Coverage Ratios Triggered           12.50%    
Amended A B L Credit Agreement [Member]                
Line of Credit Facility, Daily Minimum Liquidity   $ 50,000,000       $ 50    
Line of Credit Facility, Quarterly Minimum Liquidity   80,000,000            
Line of Credit Facility, Maximum Borrowing Capacity   $ 90,000,000            
Minimum Liquidity Value Required To Maintain At Each Quarter           80,000,000    
Minimum Liquidity Current Balance           $ 143,000,000 $ 150,000,000  
Excess Availability Percentage Of Lender Commitments Below which Triggering Cash Dominion Control           12.50% 12.50%  
Lender Commitments Threshold Trigger Excess Availability Amount           $ 11,250,000 $ 11,250,000  
Line of Credit Facility, Remaining Borrowing Capacity           $ 21,000,000 21,000,000  
Excess Availability Below Which Fixed Charge Coverage Ratios Triggered           12.50%    
Letters of Credit Outstanding, Amount           $ 58,000,000    
Amended A B L Credit Agreement [Member] | Forecast [Member]                
Line of Credit Facility, Maximum Borrowing Capacity $ 81,000,000              
Letter of Credit [Member] | Amended A B L Credit Agreement [Member]                
Line of Credit Facility, Commitment Fee Percentage   0.25%            
Letter Of Credit Facility Agreement [Member]                
Debt Instrument, Basis Spread on Variable Rate   2.75%            
Line of Credit Facility, Commitment Fee Percentage   0.25%            
Letter of Credit, Commitment Amount       $ 50,000,000        
Line of Credit Facility, Aggregate Cash Collateral Percentage       103.00%        
Letters of Credit Outstanding, Amount           43,000,000 43,000,000  
Letter Of Credit Cash Collateral           44,000,000 44,000,000  
Line of Credit Facility, Percentage of Letter of Credit Fee   3.75%            
Two Thousand Twenty One Notes Embedded Derivative [Member]                
Embedded Derivative, Fair Value of Embedded Derivative Liability       $ 12,000,000   $ 3,000,000 $ 2,000,000  
Minimum [Member] | Amended A B L Credit Agreement [Member]                
Fixed Charged Coverage Ratio Required           1.0 1.0  
Minimum [Member] | Revolving Credit Facility [Member] | Amended A B L Credit Agreement [Member]                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.375%            
Minimum [Member] | Revolving Credit Facility [Member] | Amended A B L Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member]                
Debt Instrument, Basis Spread on Variable Rate   3.50%            
Maximum [Member] | Revolving Credit Facility [Member] | Amended A B L Credit Agreement [Member]                
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage   0.50%            
Maximum [Member] | Revolving Credit Facility [Member] | Amended A B L Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member]                
Debt Instrument, Basis Spread on Variable Rate   4.00%            
Two Thousand Twenty One Convertible Debt [Member]                
Debt Instrument, Face Amount       $ 25,000,000        
Debt Instrument, Interest Rate, Stated Percentage       5.00%        
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares       100        
Debt Conversion, Converted Instrument, Amount       $ 1,000        
Initial Conversion Price Per Share of Common Stock (in dollars per share) | $ / shares       $ 10.00        
Debt Instrument, Convertible, Stock Price Trigger (in dollars per share) | $ / shares       $ 14.50        
Debt Instrument, Convertible, Threshold Consecutive Trading Days       60        
Holder Fundamental Transaction Election Period (Day)       30 days        
Convertible Notes Payable, Noncurrent           $ 18,000,000 $ 18,000,000  
Debt Instrument, Unamortized Discount           8,000,000 9,000,000  
Convertible Debt, Fair Value Disclosures           $ 17,000,000 $ 16,000,000  
Two Thousand Twenty One Convertible Debt [Member] | Minimum [Member]                
Debt Instrument, Convertible, Threshold Trading Days       45