Note 12 - Other Accrued Liabilities - Conditional Advances (Details) - EUR (€) € in Thousands	Dec. 31, 2019	Dec. 31, 2018
2020
2021	6
2022	209
2023	209
2024 and thereafter	646
Total	€ 1,071	€ 1,039

The amount of the subsidy from the transfer of employee pension fund liabilities to the government.

No definition available.

Name:	edap_ConditionalGovernmentSubsidies
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of government conditional advances due in the next fiscal year following the latest fiscal year.

No definition available.

Name:	edap_ConditionalGovernmentSubsidiesDueInTheNextFiscalYear
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of government conditional advances due in the fifth fiscal year following the latest fiscal year.

No definition available.

Name:	edap_ConditionalGovernmentSubsidiesDueInYearFiveAndThereafter
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of government conditional advances due in the fourth fiscal year following the latest fiscal year.

No definition available.

Name:	edap_ConditionalGovernmentSubsidiesDueInYearFour
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of government conditional advances due in the third fiscal year following the latest fiscal year.

No definition available.

Name:	edap_ConditionalGovernmentSubsidiesDueInYearThree
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of government conditional advances due in the second fiscal year following the latest fiscal year.

No definition available.

Name:	edap_ConditionalGovernmentSubsidiesDueInYearTwo
Namespace Prefix:	edap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant