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Note 7 - Stock Based Compensation - Summary of Restricted Stock Activity (Details) - $ / shares
shares in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Vested, shares (in shares) (13) (13)
Restricted Stock [Member]    
Non-vested, shares (in shares) 202  
Non-vested, Weighted average grant date price (in dollars per share) $ 15.15  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 31  
Granted, Weighted average grant date price (in dollars per share) $ 21.07  
Vested, shares (in shares) (71)  
Vested, Weighted average grant date price (in dollars per share) $ 15.01  
Non-vested, shares (in shares) 162 202
Non-vested, Weighted average grant date price (in dollars per share) $ 16.77 $ 15.15