Note 6 - Derivatives (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Agent Warrants In Connection With March 2020 Private Placement [Member]
Derivative Liability, Total	$ 9,171		$ 41,336
Derivative, Gain (Loss) on Derivative, Net, Total	32,166	$ (43,249)
Agent Warrants Issued in Connection with May 2020 Offering [Member]
Derivative Liability, Total	10,594		42,646
Derivative, Gain (Loss) on Derivative, Net, Total	32,051	(41,054)
Agent Warrants In Connection With June 2020 Warrant [Member]
Derivative Liability, Total	12,553		$ 45,498
Derivative, Gain (Loss) on Derivative, Net, Total	$ 32,945	$ (45,143)