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Note 7 - Shareholders' Equity (Details Textual) - USD ($)
3 Months Ended
Feb. 19, 2025
Mar. 26, 2024
Dec. 13, 2023
Jun. 09, 2023
Mar. 31, 2025
Mar. 31, 2024
Service Based Awards [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         3 years  
Performance Shares [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)         3 years  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         19,482,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)         $ 10.26  
Performance Shares [Member] | Executive Officer [Member] | Minimum [Member]            
Percentage of Targeted Amount For Issue Of Shares Depends On The Achievement Of Performance Measures         0.00%  
Performance Shares [Member] | Executive Officer [Member] | Maximum [Member]            
Percentage of Targeted Amount For Issue Of Shares Depends On The Achievement Of Performance Measures         200.00%  
Performance Shares [Member] | Executive Officer [Member] | Median [Member]            
Percentage of Targeted Amount For Issue Of Shares Depends On The Achievement Of Performance Measures         100.00%  
Restricted Stock [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)         6,493  
Share-Based Payment Arrangement, Expense         $ 46,000 $ 63,000
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount         $ 169,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)         $ 10.26  
Equity Incentive Plan2022 [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)         200,000  
Equity Incentive Plan2022 [Member] | Restricted Stock [Member] | Non-employee Directors [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period (Year)       12 years    
The 2025-2027 LTIP Stock Award [Member] | Performance Shares [Member] | Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 19,482          
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) $ 10.26          
The 2025-2027 LTIP Stock Award [Member] | Restricted Stock [Member] | Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 6,493          
The 2024-2026 LTIP Stock Award [Member] | Performance Shares [Member] | Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   21,541        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)   $ 12.63        
The 2024-2026 LTIP Stock Award [Member] | Restricted Stock [Member] | Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)   7,180        
The 2023-2025 LTIP Stock Award [Member] | Performance Shares [Member] | Executive Officer [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     17,380      
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)     $ 11.5      
Long Term Incentive Plan [Member]            
Maximum Potential Stock-based Compensation Expense         $ 1,200,000  
Long Term Incentive Plan [Member] | Performance Shares [Member] | Executive Officer [Member]            
Share-Based Payment Arrangement, Expense         $ 0 $ 0