Registration of securities issued in business combination transactions

Note 14 - Stock-based Compensation (Details Textual)

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Note 14 - Stock-based Compensation (Details Textual) - USD ($)
9 Months Ended 12 Months Ended 15 Months Ended
Jun. 01, 2016
May 18, 2006
Sep. 30, 2023
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)       4,552,500 4,552,500 2,904,500 1,395,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount     $ 431,067 $ 1,709,838 $ 1,709,838    
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Month)     11 months 9 months 15 days      
The 2021 Stock Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)       5,000,000 5,000,000    
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)         10 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)       3,507,000 3,507,000 1,590,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)       1,295,000 1,295,000 1,000,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)       1,458,000 1,458,000 3,410,000  
The 2016 Stock Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) 1,000,000            
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) 10 years            
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)       773,500 773,500 940,500  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)       629,750 629,750 578,000  
The 2006 Stock Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)   1,950,000          
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)   10 years          
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number, Ending Balance (in shares)       272,000 272,000 374,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)       756,888 756,888 1,179,855