Note 5 - Stockholders' Equity (Details Textual)	1 Months Ended	3 Months Ended
	Mar. 31, 2023 $ / shares shares	Mar. 31, 2023 $ / shares shares
Stock Issued During Period, Shares, Issued for Services	108,696
Class of Warrant or Right, Outstanding	13,384,115	13,384,115
Class Of Warrant Or Right Outstanding Weighted Average Exercise Price | $ / shares	$ 2.77	$ 2.77
Warrants and Rights Outstanding, Term	4 years 3 months 18 days	4 years 3 months 18 days
Stock Incentive Plan 2020 [Member]
Common Stock, Capital Shares Reserved for Future Issuance	2,250,000	2,250,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number	2,058,800	2,058,800
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price | $ / shares	$ 1.89	$ 1.89
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term		8 years 10 months 24 days