Note 6 - Common Stock and Preferred Stock (Details Textual)			2 Months Ended	9 Months Ended
	Apr. 17, 2023 shares	Dec. 30, 2022 USD ($) $ / shares shares	Feb. 28, 2023 USD ($) shares	Sep. 30, 2023 USD ($) $ / shares shares	Sep. 30, 2022 USD ($)	Dec. 31, 2022 $ / shares shares	Feb. 28, 2022 shares
Common Stock, Shares Authorized (in shares)	300,000,000			300,000,000		300,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares				$ 0.0001		$ 0.0001
Common Stock, Voting Rights, Vote Per Share				1
Dividends, Common Stock, Total | $				$ 0
Payments of Stock Issuance Costs | $				$ 144,231	$ (0)
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)							769,146
Stockholders' Equity Note, Stock Split, Conversion Ratio				6
Dividends Payable | $				$ 0
Preferred Stock, Shares Issued (in shares)				0		0
Preferred Stock, Shares Outstanding, Ending Balance (in shares)				0		0
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	6
Warrants in Connection With Unit Purchase Agreement [Member]
Number of Warrant Per Unit (in shares)		1
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)		0.5
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares		$ 12
Warrants and Rights Outstanding, Term (Year)		5 years
Class of Warrant or Right, Outstanding (in shares)				824,340
Placement Agent Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares		$ 7.8
Warrants and Rights Outstanding, Term (Year)		5 years
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)		177,490					177,490
Purchaser Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)							591,656
Unit Purchase Agreement in Private Placement Offering [Member]
Stock Issued During the Period, Units, New Issues (in shares)		647,057	1,183,192
Number of Common Stock Per Unit (in shares)		1
Shares Issued, Price Per Share (in dollars per share) | $ / shares		$ 7.8
Proceeds from Issuance or Sale of Equity, Total | $		$ 5,000,000	$ 9,200,000
Payments of Stock Issuance Costs | $		700,200	$ 1,200,000
Placement Agents Fee | $		$ 931
Percent of Gross Proceeds From Issuance of Equity		10.00%