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Note 7 - Commitments and Contingencies (Details Textual) - USD ($)		1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Jul. 31, 2018	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2018	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2016	Dec. 31, 2009	Jul. 31, 2022	Mar. 31, 2022	Mar. 03, 2021	Feb. 11, 2020
Other Commitment, Total												$ 340,000
Payments to Acquire Intangible Assets							$ 39,737	$ 25,735
License Agreement Terms [Member]
License Agreement Milestone Payment													$ 6,150,000
National Institute of Health [Member]
Royalty on Sales, Percentage										1.00%
Royalty Term (Year)										21 years
Royalty Payment, Annual Minimum										$ 20,000
Other Commitment, Total					$ 191,393				$ 191,393
Legal Fees					15,393
Accounts Payable, Other, Current					176,000				176,000
Accrued Royalties, Current					$ 140,000				140,000
Other Expenses, Total									$ 36,000
Extinguishment of Debt, Amount				$ 120,000
Accrued Patent Costs, Current				36,000
Payments for Royalties			$ 20,000	20,000
Payment for Contingent Consideration Liability, Operating Activities				240,000
Contingent Payments Annual Increase				20,000
Payments to Acquire Intangible Assets			$ 36,000
Finite-Lived Intangible Assets, Period Increase (Decrease), Total				$ (120,000)
Clinical Trial Agreement [Member] | MD Anderson [Member]
Long Term Contract, Estimated Cost						$ 2,000,000
Research Agreement [Member] | MD Anderson [Member]
Long Term Contract, Estimated Cost	$ 2,900,000	$ 2,000,000
License Agreement [Member] | University of Pittsburgh [Member]
Licensing Fee, Amount														$ 25,000
Annual Maintenance Fee, First Three Years, Amount														25,000
Annual Maintenance Fee, After Year Three, Amount														40,000
Annual Royalty Payment Per Year, Minimum														$ 250,000
Share of Non-Royalty Sublicense Income, Percent														20.00%
License Agreement [Member] | University of Pittsburgh [Member] | Dosing of First Human Patient in a Phase I Clinical Trial [Member]
Milestone Payment														$ 3,975,000
License Agreement [Member] | University of Pittsburgh [Member] | Minimum [Member]
Royalty Percent, Licensed Technology Covered by Patent														1.50%
License Agreement [Member] | University of Pittsburgh [Member] | Maximum [Member]
Royalty Percent, Licensed Technology Covered by Patent														3.00%
Development and Manufacturing of GMP Grade Materials [Member]
Development Services Agreement, Expected Total Project Cost											$ 2,500,000

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