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v3.21.2

Note 13 - Related Party Transactions (Details Textual) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Apr. 30, 2020 | Apr. 29, 2020 | Jan. 31, 2017 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Director [Member] |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Compensation Expense |  |  |  |  |  | $ 0.00 |  | $ 275,000
Consultant [Member] |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Compensation Expense |  |  |  | $ 15,000 |  | 30,000 |  |
Director of Clinical Affairs [Member] |  |  |  |  |  |  |  |
Royalty Expense |  |  |  | 111,000 | $ 97,000 | 248,000 | $ 19,000 |
Professional Fees |  |  |  | 39,000 | 39,000 | 78,000 | 78,000 |
Accounts Payable, Related Parties |  |  |  | 134,000 |  | 134,000 |  | 127,000
Manufacturing Agreement for Handpieces [Member] |  |  |  |  |  |  |  |
Related Party Transaction, Purchases from Related Party | $ 370,260 | $ 370,260 |  | 384,000 | 751,000 |  |  |
Manufacturing Agreement for Handpieces [Member] | Accounts Payable, Related Parties, Current [Member] |  |  |  |  |  |  |  |
Due to Related Parties, Current, Total |  |  |  | 200,000 |  | 200,000 |  | $ 362,000
Consulting Services [Member] |  |  |  |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  | $ 25,000 | 25,000 | $ 50,000 | 50,000 |
Consultant [Member] | Innovest S.p.A. [Member] |  |  |  |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  |  | $ 20,000 |  | $ 40,000 |
Consulting Services Agreement, Term (Year) |  |  | 12 years |  |  |  |  |

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