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Note 23 - Income Taxes (Details Textual) € in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2019 EUR (€) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 EUR (€) | Dec. 31, 2017 EUR (€) | Dec. 31, 2016 EUR (€)
Deferred Tax Assets, Operating Loss Carryforwards, Foreign |  | € 13,642 |  |  |  |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration |  | € 55,530 |  |  |  |
U.S Subsidiary Taxable Net Income Subject to Lower Taxes with New Tax Law, Minimum | $ |  |  | $ 0.1 |  |  |
Effective Income Tax Rate Reconciliation, at French Corporate Income Tax Rate, Percent |  | 28.00% |  |  |  |
Income Tax Examination, Penalties and Interest Expense, Total |  |  |  | € 0 | € 0 | € 0
Forecast [Member] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at French Corporate Income Tax Rate, Percent | 25.00% |  |  |  |  |
Foreign Tax Authority [Member] |  |  |  |  |  |
Operating Loss Carryforwards, Total |  | € 57,701 |  |  |  |
Foreign Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  | 21.00% | 21.00% |  |
Foreign Tax Authority [Member] | Minimum [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  |  |  | 15.00% |
Foreign Tax Authority [Member] | Maximum [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  |  |  |  | 39.00% |
Foreign Tax Authority [Member] | EDAP TMS S.A. [Member] |  |  |  |  |  |
Operating Loss Carryforwards, Total |  | 31,359 |  |  |  |
Foreign Tax Authority [Member] | EDAP Technomed Inc. [Member] |  |  |  |  |  |
Operating Loss Carryforwards, Total |  | 22,413 |  |  |  |
Foreign Tax Authority [Member] | Edap Technomed Co Ltd Japan [Member] |  |  |  |  |  |
Operating Loss Carryforwards, Total |  | 2,171 |  |  |  |
Foreign Tax Authority [Member] | EDAP Technomed Italia S.R.L. [Member] |  |  |  |  |  |
Operating Loss Carryforwards, Total |  | € 1,758 |  |  |  |

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