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Note 15 - Subsequent Events (Details) - USD ($)
$ in Thousands
Feb. 15, 2023
Dec. 15, 2022
Sep. 15, 2022
Jun. 15, 2022
Mar. 04, 2022
Feb. 18, 2022
Jul. 16, 2021
Jul. 15, 2021
Mar. 01, 2023
Dec. 31, 2022
Dec. 31, 2021
Subsequent Events                      
Quarterly Dividend   $ 5,000 $ 5,000 $ 5,000   $ 5,000          
Compensatory damages         $ 1,800   $ 25,000 $ 7,700      
Dividend payable                 $ 5,500 $ 5,524 $ 2,501
Revolving Credit Facility                      
Subsequent Events                      
Outstanding on Revolving Credit Facility                     25,000
Amount of remaining availability                     $ 13,500
Subsequent Event | Revolving Credit Facility                      
Subsequent Events                      
Repayment of line of credit $ 20,000                    
Outstanding on Revolving Credit Facility 25,000                    
Subsequent Event | Revolving loans under the new facility                      
Subsequent Events                      
Outstanding on Revolving Credit Facility 25,000                    
Initial aggregate revolving commitment 125,000                    
Amount borrowed under accordian feature 50,000                    
Borrowing base 66,300                    
Proceeds from borrowings 20,000                    
Repayment of related party debt 10,000                    
Amount of remaining availability $ 41,300                    
Fixed charge coverage ratio 1.10                    
Average daily cash balance $ 5,000                    
Subsequent Event | Revolving loans under the new facility | Base Rate                      
Subsequent Events                      
Interest rate, basis spread 1.50%                    
Debt instrument, interest rate during period 3.00%                    
Subsequent Event | Revolving loans under the new facility | Secured overnight financing rate                      
Subsequent Events                      
Interest rate, basis spread 2.00%                    
Subsequent Event | Revolving loans under the new facility | Federal funds                      
Subsequent Events                      
Interest rate, basis spread 0.50%