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Note 4 - Commitments (Details Textual) - Office and Laboratory Lease Agreement [Member]
3 Months Ended
Mar. 31, 2023
USD ($)
ft²
Mar. 31, 2022
USD ($)
Area of Real Estate Property | ft² 8,400  
Operating Lease, Expense $ 45,414 $ 44,089
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year 136,242  
Lessee, Operating Lease, Liability, to be Paid, Year One 187,056  
Lessee, Operating Lease, Liability, to be Paid, Year Two $ 192,708