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Note 11 - Deferred Revenues - Deferred Revenue Recognition Period (Details) € in Thousands | Dec. 31, 2019 EUR (€)
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Extension of Warranty [Member] |
Revenue, remaining performance obligation, amount | € 837

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- Definition Amount of transaction price allocated to performance obligation that has not been recognized as revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045 + Details
Name: | us-gaap_RevenueRemainingPerformanceObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
Name: | srt_ProductOrServiceAxis=edap_ExtensionOfWarrantyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |