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Operating Expenses - Summary of General and Administrative Expenses (Detail) - EUR (€) € in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure Of General And Administrative Expense [Abstract] |  |  |
Personnel expenses | € 19,742 | € 22,613 | € 8,768
Fees | 10,347 | 7,701 | 4,234
Rental | 584 | 501 | 305
Insurance policies | 1,367 | 1,853 | 1,239
Corporate communication and travel expenses | 1,599 | 1,136 | 1,010
Depreciation and amortization | 422 | 181 | 74
Others | 1,776 | 1,020 | 1,229
Total general and administrative expenses | € 35,837 | € 35,005 | € 16,859

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- Definition Corporate communication and travel expenses. + References No definition available. + Details
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- Definition Depreciation and amortization general and administrative expenses. + References No definition available. + Details
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- Definition Disclosure of general and administrative expense. + References No definition available. + Details
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- Definition Fees general and administrative expenses. + References No definition available. + Details
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Balance Type: | debit
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- Definition Insurance policies general and administrative expenses. + References No definition available. + Details
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- Definition Other general and administrative expenses. + References No definition available. + Details
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- Definition Personnel general and administrative expenses. + References No definition available. + Details
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- Definition Rental general and administrative expense. + References No definition available. + Details
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Namespace Prefix: | dbvt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of expense relating to selling, general and administrative activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_85&doctype=Standard -URIDate 2017-03-09 + Details
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