XML 95 R55.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Accounting Principles - Summary of Depreciation Periods (Detail) | 12 Months Ended
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Dec. 31, 2017
Fixtures and improvements in structures [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation periods | 9 years
Research and development / production tools [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation periods | 5 years
Research equipment and technical facilities [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation periods | 5 years
Computer equipment [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation periods | 3 years
Office equipment and furniture [member] |
Disclosure of detailed information about property, plant and equipment [line items] |
Depreciation periods | 5 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_c&doctype=Standard -URIDate 2017-03-09 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=dbvt_ResearchAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Data Type: | na
Balance Type: |
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