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Note 4 - Commitments (Details Textual) - Office and Laboratory Lease Agreement [Member]
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2024
USD ($)
ft²
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
ft²
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
ft²
Dec. 31, 2022
USD ($)
Area of Real Estate Property | ft² 8,400   8,400   8,400  
Operating Lease, Expense $ 46,764 $ 45,414 $ 93,528 $ 90,828 $ 182,106 $ 176,797
Lessee, Operating Lease, Liability, to be Paid, Year One $ 192,708   $ 192,708   187,000  
Lessee, Operating Lease, Liability, to be Paid, Year Two         $ 193,000