Quarterly report [Sections 13 or 15(d)]

Note 12 - Stock-based Compensation (Details Textual)

v3.25.1
Note 12 - Stock-based Compensation (Details Textual) - USD ($)
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Dec. 31, 2023
Apr. 11, 2023
Dec. 31, 2013
Share-Based Payment Arrangement, Option [Member]            
Share-Based Payment Arrangement, Expense $ 0 $ 2,705        
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount 0          
Restricted Stock [Member]            
Share-Based Payment Arrangement, Expense $ 41,573 $ 80,627        
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) 24,653 11,733 24,653 11,733    
Restricted Stock Units (RSUs) [Member]            
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 145,449          
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in shares) 24,653          
The 2013 Equity Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)           75,000
The 2023 Equity Incentive Plan [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)         75,000