v3.25.2
Note 5 - Line of Credit (Details Textual) - Revolving Credit Facility [Member] - USD ($)
Sep. 07, 2021
Mar. 31, 2025
Mar. 31, 2024
Jun. 15, 2018
Line of Credit Facility, Maximum Borrowing Capacity       $ 400,000
Line of Credit Facility, Expiration Date May 15, 2025      
Debt Instrument, Interest Rate, Stated Percentage   8.87% 5.37%  
Short-Term Debt, Total   $ 377,161 $ 389,530