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Note 5 - Loan Payable (Details Textual) - Loans Payable [Member] - USD ($)
Jan. 31, 2024
Jan. 31, 2023
Mar. 31, 2022
Jan. 31, 2022
Dec. 20, 2021
Debt Instrument, Face Amount         $ 3,800,000
Debt Instrument, Interest Rate, Stated Percentage         4.00%
Debt Instrument, Annual Principal Payment       $ 1,800,000  
Debt Instrument, Unamortized Discount, Total     $ 33,839    
Forecast [Member]          
Debt Instrument, Annual Principal Payment $ 1,000,000 $ 1,000,000