Note 6 - Equity and Stock-based Compensation (Details Textual) - USD ($)		1 Months Ended	3 Months Ended			12 Months Ended
	Aug. 24, 2022	Aug. 31, 2022	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2025	Jun. 30, 2024	Dec. 31, 2022	Mar. 04, 2022
Authorized Shares, Common and Preferred (in shares)			101,000,000
Common Stock, Shares Authorized (in shares)			100,000,000					100,000,000
Preferred Stock, Shares Authorized (in shares)			1,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)			$ 0.0001
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount			$ 42,400
The 2016 Omnibus Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)									4,250,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)			0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)			(0)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value			$ 6,200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value			4,300,000
The 2016 Omnibus Plan [Member] | Immediately Vested Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value			2,420		$ 6,430
Participation Rights [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	500,000
Contingent Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	500,000
Class of Warrant or Right, Purchase Price of Warrants or Rights (in dollars per share)	$ 2.00
First Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.00
Warrants and Rights Outstanding	$ 434,000
Second Warrant [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	200,000
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 1.50
Warrants and Rights Outstanding	$ 345,000
First and Second Compensatory Performance-based Stock Purchase Warrants [Member]
Share-Based Payment Arrangement, Expense			0
Pacific Med [Member]
Stock Issued During Period, Shares, New Issues (in shares)	500,000
Stock Issued During Period, Value, New Issues	$ 500,000
Share-Based Payment Arrangement, Expense			$ 0
Common Stock, Capital Shares Agreed for Future Issuance Upon Milestone Achievement, Fair Value	$ 615,000
Pacific Med [Member] | Forecast [Member]
Sales and Distribution Agreement, Milestone Achievement, Minimum Revenue to be Achieved						$ 12,500,000	$ 4,500,000
Pacific Med [Member] | Maximum [Member]
Common Stock, Capital Shares Agreed for Future Issuance Upon Milestone Achievement (in shares)	300,000
Principal Shareholder, Members of the Board of Directors, and a Member of Senior Management [Member]
Proceeds from Issuance of Private Placement		$ 940,400
Private Placement [Member]
Stock Issued During Period, Shares, New Issues (in shares)				3,957,757
Proceeds from Issuance of Private Placement				$ 3,957,757				$ 4,500,000