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Note 10 - Equity Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2022
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2021
Share-Based Payment Arrangement, Expense   $ 0.8   $ 1.1 $ 1.4 $ 1.7
The 2019 Omnibus Award Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 2,350,000          
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant   2,637,095     2,637,095  
The 2019 Omnibus Award Plan [Member] | Performance Shares [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period     164,348      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 6.90      
The 2019 Omnibus Award Plan [Member] | Restricted Stock Units (RSUs) [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period     197,915