Quarterly report [Sections 13 or 15(d)]

Note 2 - Significant Accounting Policies (Details Textual)

v3.25.3
Note 2 - Significant Accounting Policies (Details Textual) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Jan. 31, 2025
Oct. 23, 2024
Insurance Premiums Dues Subscription and Software Cost Paid In Advance $ 10,000   $ 10,000        
Cash, FDIC Insured Amount $ 250,000   $ 250,000        
Weighted Average Number of Shares Outstanding, Basic (in shares) [1] 7,123,849 3,520,398 7,036,937 3,419,321      
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 715,315 476,758 715,315 476,758      
Research and Development Expense $ 2,589,749 $ 984,278 $ 5,963,124 $ 3,081,366      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense 0 $ 0 0 $ 0      
License Agreement [Member]              
Initial Cash Payment for License Agreement         $ 1,000,000   $ 1,000,000
Additional Cash Payment for License Agreement           $ 3,000,000 $ 3,000,000
License Agreement, Upfront Payments [Member]              
Research and Development Expense         4,000,000    
License Agreement, Value of Common Stock [Member]              
Research and Development Expense         4,600,000    
Fair Value, Recurring [Member]              
Liabilities, Fair Value Disclosure $ 0   $ 0   $ 0    
[1] Information pertaining to number of shares outstanding and per share data gives retroactive effect to a 1 for 5 reverse stock split that became effective on August 12, 2024.