Annual report pursuant to Section 13 and 15(d)

Note 10 - Share-based Awards and Cash-based Awards (Details Textual)

v3.20.4
Note 10 - Share-based Awards and Cash-based Awards (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Feb. 01, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Subsequent Event [Member]        
Cash Discretionary Bonus $ 7,600      
Amended and Restated Incentive Plan [Member]        
Cash-Based Awards, Granted in Period (in shares)   0    
Cash-based Incentive Compensation   $ 0    
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)   10,347,591    
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Grant Date Fair Value   $ 0 $ 4,500 $ 6,800
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Grant Date Fair Value   2,000 $ 7,000 $ 11,000
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total   1,200    
Restricted Stock Units (RSUs) [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Percent of Adjustments     0.00% 0.00%
Restricted Stock Units (RSUs) [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Percent of Adjustments     100.00% 100.00%
Restricted Stock [Member]        
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total   $ 200    
Restricted Stock [Member] | Directors Compensation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)   473,244    
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Grant Date Fair Value   $ 300 $ 300 $ 300
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Grant Date Fair Value   $ 200 500 $ 700
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   3 years    
Restricted Stock [Member] | Directors Compensation Plan [Member] | Share-based Payment Arrangement, Tranche One [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   3.00%    
Restricted Stock [Member] | Directors Compensation Plan [Member] | Share-based Payment Arrangement, Tranche Two [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   3.00%    
Restricted Stock [Member] | Directors Compensation Plan [Member] | Share-based Payment Arrangement, Tranche Three [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage   3.00%    
Cash-based Awards [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, Adjusted EBITDA Less Interest, Minimum     $ 200,000