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Note 12 - Related Party Transactions (Details Textual) - USD ($)			3 Months Ended					6 Months Ended
	Apr. 06, 2021	Jul. 10, 2017	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Jan. 01, 2025	Dec. 31, 2024	Mar. 02, 2021	Mar. 01, 2021
Royalty Expense					$ 119,779		$ 94,950	$ 232,270	$ 210,642
Professional Fees					900,591		753,796	$ 2,185,236	1,693,193
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)								0
Consultant [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense					50,000		50,000	$ 100,000	100,000
Director Clinical Affair [Member]
Royalty Expense					119,000		95,000	232,000	211,000
Professional Fees					39,000		78,000	39,000	78,000
Director of Clinical Affairs [Member]
Accounts Payable and Accrued Liabilities, Current					$ 125,000			$ 125,000			$ 110,000
Mr. Osser, Interim Chief Executive Officer [Member]
Royalty on Net Sales, Percentage												2.50%	5.00%
Mr. Osser, Vice Chairman of Board [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)	2,000,000
Shares Issued and Owned by Investors, Balance, Shares (in shares)					2,717,765			2,717,765
Shares To Be Issued at Employment Termination (in shares)					2,481,048			2,481,048
Mr. Osser, Vice Chairman of Board [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	5 years
Mr. Haverhals, Consultant and Director [Member]
Consulting Agreement, Annual Fee										$ 350,000
Payments for Consulting Services					$ 67,000	$ 150,000
Consulting Agreement, Compensation Expense					$ 67,000			$ 216,000
Shares To Be Issued after Employees Resignation (in shares)					912,736			912,736
Mr. Haverhals, Consultant and Director [Member] | Forecast [Member]
Payments for Consulting Services			$ 67,000	$ 67,000
Manufacturing Agreement for Handpieces [Member]
Related Party Transaction, Purchases from Related Party					$ 285,000		423,000	$ 772,000	1,200,000
Manufacturing Agreement for Handpieces [Member] | Related Party [Member] | Accounts Payable, Related Parties, Current [Member]
Accounts Payable and Accrued Liabilities					539,000			539,000			$ 663,000
Employment Agreement [Member] | Mr. Osser, Vice Chairman of Board [Member]
Increase (Decrease) in Deferred Compensation		$ (100,000)
Employment Agreement, Base Compensation		200,000
Consulting Agreement [Member] | Mr. Osser, Vice Chairman of Board [Member]
Increase (Decrease) in Deferred Compensation		100,000
Employment Agreement, Base Compensation		$ 200,000
Purchased Medical Products [Member] | University Pain Medicine Center (STEMMEE) [Member]
Related Party Transaction, Amounts of Transaction					$ 15,000		$ 6,000	$ 21,000	$ 9,000

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