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Note 15 - Equity-based Compensation (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 06, 2022
Mar. 31, 2017
Oct. 31, 2007
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)       0   0  
Proceeds from Stock Options Exercised       $ 0   $ 0  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total       600   $ 600  
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)           2 years 3 months 18 days  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)           626,000 291,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)           180,000 1,228,359
Allocated Share Based Compensation Benefit       (208)      
Share-Based Payment Arrangement, Expense         $ 224 $ 130 $ 702
Share-Based Payment Arrangement, Nonemployee [Member]              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)           0 0
Share-Based Payment Arrangement, Option [Member]              
Allocated Share Based Compensation Benefit       208      
Share-Based Payment Arrangement, Expense         151 $ 130 $ 523
Share-Based Payment Arrangement, Option [Member] | Share-Based Payment Arrangement, Nonemployee [Member]              
Share-Based Payment Arrangement, Expense       $ 0 $ 73   $ 180
The 2007 Omnibus Incentive Plan [Member] | Maximum [Member] | Incentive Stock Options (ISOs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)     10 years        
The 2017 Omnibus Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)   2,318,486          
Share-based Compensation Arrangement by Share-based Payment Award, Annual Increase in Shares Authorized, Percentage of Outstanding Common Stock   4.00%          
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares) 1,910,634            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       3,049,127   3,049,127  
The 2017 Omnibus Incentive Plan [Member] | Incentive Stock Options (ISOs) [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percentage of Stock Owned by Shareholder, Minimum   10.00%          
The 2017 Omnibus Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)   4 years          
The 2017 Omnibus Incentive Plan [Member] | Maximum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)   10 years          
The 2017 Omnibus Incentive Plan [Member] | Maximum [Member] | Incentive Stock Options (ISOs) [Member] | Shareholder of More Than 10% [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)   5 years          
The 2017 Omnibus Incentive Plan [Member] | Minimum [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent   100.00%          
The 2017 Omnibus Incentive Plan [Member] | Minimum [Member] | Incentive Stock Options (ISOs) [Member] | Shareholder of More Than 10% [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent   110.00%