Note 5 - Accounts Payable and Accrued Expenses - Summary of Accounts Payable and Accrued Expenses (Details) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Accounts payable	$ 265,114	$ 224,716
Accrued fees and expenses	37,092	51,869
Accounts Payable and Accrued Liabilities, Current	$ 302,206	$ 276,585