Represents the expiration period under the consulting services agreement.

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Represents the royalty percentage on net sales.

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Amount for accounts payable to related parties.

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The compensation expense recognized during the period pertaining to the deferred compensation arrangement.

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Carrying amount as of the balance sheet date of obligations due all related parties.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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No definition available.

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Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

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Per share or per unit amount of equity securities issued.

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Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

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Note O - Related Party Transactions (Details Textual) - USD ($)		1 Months Ended		12 Months Ended
	Apr. 29, 2020	Feb. 28, 2019	Jan. 31, 2017	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Mar. 02, 2021	Mar. 01, 2021	Jun. 30, 2014
Stock Issued During Period, Value, Issued for Services						$ 67,144
Director [Member]
Deferred Compensation Arrangement with Individual, Compensation Expense					$ 275,000	380,000
Consultant [Member] \| Forecast [Member]
Stock Issued During Period, Value, Issued for Services				$ 60,000
Director of Clinical Affairs [Member]
Royalty Expense					267,000	403,000
Professional Fees					156,000	156,000
Accounts Payable, Related Parties					$ 127,000	390,000
Director of Clinical Affairs [Member] \| Subsequent Event [Member]
Royalty on Net Sales, Percentage								2.50%	5.00%
Interim Chief Executive Officer [Member] \| Subsequent Event [Member]
Royalty on Net Sales, Percentage								2.50%
Interim Chief Executive Officer and the Director of Clinical Affairs [Member] \| Subsequent Event [Member]
Royalty on Net Sales, Percentage								5.00%
Milestone China [Member]
Equity Method Investment, Ownership Percentage					40.00%					40.00%
Manufacturing Agreement for Handpieces [Member]
Related Party Transaction, Purchases from Related Party	$ 370,260				$ 1,850,000	1,200,000
Due to Related Parties, Total					362,000	943,000
Consulting Services [Member]
Related Party Transaction, Expenses from Transactions with Related Party					$ 100,000	100,000
Consulting Services [Member] \| United Systems [Member]
Stock Issued During Period, Shares, Issued for Services (in shares)		285,714
Shares Issued, Price Per Share (in dollars per share)		$ 0.35
Stock Issued During Period, Value, Issued for Services		$ 100,000
Consultant [Member] \| Innovest S.p.A. [Member]
Related Party Transaction, Expenses from Transactions with Related Party						$ 60,000	$ 80,000
Consulting Services Agreement, Term (Month)			1 year