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Note 22 - Stock-Based Compensation (Details Textual) - USD ($)
12 Months Ended
Feb. 16, 2023
Feb. 15, 2023
Feb. 26, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Share Based Compensation Arrangement By Share Based Payment Award Maximum Fair Value Of Awards Per Non Employee Director       $ 450,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value       $ 2,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)       $ 3.48    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value       $ 1,000,000 $ 2,000,000 $ 2,000,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)       25,000    
Omnibus Incentive Plan 2013 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)       3 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       13    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)       13,500,000    
New Employment Agreement [Member]            
Share-Based Payment Arrangement, Plan Modification, Incremental Cost     $ 0      
Share Based Compensation Arrangement By Share Based Payment Award Maximum Number Of Common Stock Ownable Percentage     4.99%      
Share-Based Payment Arrangement, Accelerated Cost     $ 0      
Minimum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) $ 1.32 $ 0        
Maximum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) $ 2.24 $ 2.14        
Share-Based Payment Arrangement, Option [Member]            
Share-Based Payment Arrangement, Expense       $ 3,000,000 $ 1,000,000 $ 2,000,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)       2 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)       $ 2.87    
Share-Based Payment Arrangement, Option [Member] | Minimum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)       7 years    
Share-Based Payment Arrangement, Option [Member] | Maximum [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)       10 years    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount       $ 1,000,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)       1,000,000 1,000,000 1,000,000
Incentive Stock Options [Member] | Maximum [Member] | Omnibus Incentive Plan 2013 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       2,000,000    
Stock Options And Stock Appreciation Rights [Member] | Omnibus Incentive Plan 2013 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Number of Shares Per Employee (in shares)       2,500,000    
Unvested Restricted Stock Awards [Member] | Omnibus Incentive Plan 2013 [Member]            
Share-Based Payment Arrangement, Expense       $ 4,000,000 $ 4,000,000 $ 5,000,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount       $ 6,000,000    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)       1 year 7 months 6 days    
Restricted Stock Units And Restricted Stock Awards [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)       $ 3.9 $ 4.6 $ 8.5
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value       $ 4,000,000 $ 5,000,000 $ 6,000,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)       2,007,609    
Restricted Stock Units (RSUs) [Member] | Omnibus Incentive Plan 2013 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested, Number (in shares)       368,324    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested, Weighted Average Grant Date Fair Value (in dollars per share)       $ 6.1    
Restricted Stock Units (RSUs) [Member] | New Employment Agreement [Member]            
Share-Based Payment Arrangement, Expense     $ 2,000,000      
Restricted Stock Units (RSUs) [Member] | New Employment Agreement [Member] | Executive Chairman And Chief Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     200,000      
Non-qualified Stock Options [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) 10 years 7 years        
Share-Based Payment Arrangement, Plan Modification, Incremental Cost       $ 2,000,000    
Share-Based Payment Arrangement, Plan Modification, Awards Modified (in shares)       3,500,000