Note N - Related Party Transactions (Details Textual) - USD ($)			1 Months Ended	12 Months Ended
	Apr. 06, 2021	Jul. 10, 2017	Jul. 31, 2017	Dec. 31, 2023	Dec. 31, 2022	Mar. 02, 2021	Mar. 01, 2021	Feb. 25, 2021
Previous President and Chief Executive Officer [Member]
Increase (Decrease) in Deferred Compensation		$ (100,000)	$ (100,000)
Employment Agreement, Base Compensation		200,000	200,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	5 years
Deferred Compensation Arrangement with Individual, Compensation Expense				$ 200,000	$ 200,000
Consultant [Member]
Increase (Decrease) in Deferred Compensation		(100,000)	100,000
Employment Agreement, Base Compensation		$ 200,000	$ 200,000
Deferred Compensation Arrangement with Individual, Compensation Expense				200,000	200,000
Interim Chief Executive Officer [Member]
Royalty on Net Sales, Percentage						2.50%		5.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)	2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	5 years
Managing Director, China Operations [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense				200,000	200,000
Milestone China [Member] | Instruments [Member]
Revenues				270,000	630,000
Director Clinical Affair [Member]
Royalty Expense				485,000	442,000
Professional Fees				156,000	154,000
Royalty on Net Sales, Percentage						2.50%	5.00%
Director of Clinical Affairs [Member]
Accounts Payable and Accrued Liabilities, Current				114,000	120,000
Interim Chief Executive Officer [Member]
Royalty on Net Sales, Percentage						2.50%
Manufacturing Agreement for Handpieces [Member]
Related Party Transaction, Purchases from Related Party				2,300,000	3,400,000
Manufacturing Agreement for Handpieces [Member] | Related Party [Member] | Accounts Payable, Related Parties, Current [Member]
Accounts Payable and Accrued Liabilities				402,000	819,000
Consulting Services [Member] | Related Party [Member]
Costs and Expenses				$ 100,000	$ 100,000