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Note 13 - Subsequent Events (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 21, 2021
Jul. 16, 2021
Jul. 15, 2021
Jul. 13, 2021
Apr. 20, 2020
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Subsequent Events                  
Amount of award   $ 25,000 $ 7,700            
Other income           $ 3,432 $ 8,504 $ 6,367 $ 9,714
Chubb Insurance Lawsuit                  
Subsequent Events                  
Amount of award   $ 25,000 $ 7,700            
Senior Unsecured Notes Offering                  
Subsequent Events                  
Aggregate principal amount       $ 34,500          
Interest rate       9.00%          
Periodic payment requirement       quarterly          
Percentage of redemption price       100.00%          
PPP Loan                  
Subsequent Events                  
Proceeds from loan $ 8,400       $ 8,400        
Other income $ 8,400             $ 8,400