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Note 13 - Redeemable Preferred Units (Details Textual) - Series A Preferred Units [Member] - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
May 04, 2023
Aug. 08, 2022
Dec. 31, 2024
Dec. 31, 2023
Apr. 21, 2023
Jan. 30, 2023
Unit Purchase Agreement, Preferred Units Issued (in shares)   10,000,000     833,333 5,000,000
Unit Purchase Agreement, Price Per Unit (in dollars per share) $ 6 $ 6     $ 6 $ 6
Unit Purchase Agreement, Aggregate Additional Preferred Units (in shares)   23,333,333.34        
Unit Purchase Agreement, Capital upon the Initial Funding   $ 60.0     $ 5.0 $ 30.0
Unit Purchase Agreement, Additional Capital Commitments   140.0     $ 77.5  
Unit Purchase Agreement, Payment Pursuant to Milestone Fundings   $ 140.0        
Unit Purchase Agreement, Milestone Fundings, Standby Fee Rate   0.50%        
Preferred Stock, Dividend Rate, Percentage   15.00%        
Unit Purchase Agreement, Accretion Expense on the Redeemable Preferred Shares     $ 10.7      
Legal Fees   $ 0.8        
Stock Redeemed or Called During Period, Shares (in shares) 5,173,067          
Stock Redeemed or Called During Period, Value Before Discount on Premium $ 31.0          
Stock Redeemed or Called, Discount on Premium 30.00%          
Stock Redeemed or Called, Discount on Premium, Value $ 14.7          
Stock Redeemed or Called During Period, Value $ 45.7          
Preferred Stock, Liquidation Preference, Value     91.5      
Interest Costs Capitalized     $ 1.3 $ 2.4    
Minimum [Member]            
Preferred Stock, Dividend Rate, Percentage   13.00%        
Maximum [Member]            
Preferred Stock, Dividend Rate, Percentage   17.00%