XML 145 R105.htm IDEA: XBRL DOCUMENT v3.8.0.1

Share-Based Payments - Share-Based Payments - Disclosure of Details of Breakdown of the Closing Balance BSA 2010 (Parenthetical) (Detail)	Dec. 31, 2017 EUR (€)
BSA2010 [Member]
Disclosure of terms and conditions of share-based payment arrangement [line items]
Exercise price	€ 77

X

- 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

Name:	ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The exercise price of outstanding share options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2017-01-01
-Paragraph 45
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=2&date=2017-03-01&anchor=para_45_d&doctype=Standard
-URIDate 2017-03-09

+ Details

Name:	ifrs-full_ExercisePriceOfOutstandingShareOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=dbvt_BSATwoThousandTenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: