XML 126 R98.htm IDEA: XBRL DOCUMENT
v3.22.1

Share-Based Compensation - Summary of Share-based Compensation Under Each Plan According to Change in Estimate (Details) - EUR (€) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | € 470 | € 1,236 | € 1,656
AGA S 2016-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 0
AGA S 2016-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 44
AGA D 2016-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 21 | 21
AGA D 2016-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 6 | 39
SO 2016-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 49 | 213
SO 2016-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 13 | 93
SO US 2016-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | (24)
SO US 2016-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | (11)
AGA S 2017-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 209
AGA S 2017-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 13 | 45
AGA D 2017-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 190
AGA D 2017-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 4 | 56
SO 2017-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 335 | 27
SO 2017-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 110 | 2
SO US 2017-1 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | (4)
SO US 2017-2 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | (6)
BSA-2017-A |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 0
BSA-2017-B |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 0 | 0
AGA S 2018 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 62 | 148
AGA D 2018 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 65 | 135
SO 2018 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 186 | 225 | 285
SO US 2018 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 24 | 24 | 25
AGA S 2019 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 39 | 55 | 41
AGA D 2019 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 16 | 63 | 35
SO 2019 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 105 | 123 | 70
SO 2019 - US |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | (11) | 35 | 16
BSA 2019 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 0 | 20 | 7
SO US 2019 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | (7) | 14 | 1
SO D 2020 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 14 | 0 | 0
SO C 2020 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 40 | 0 | 0
SO US 2020 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 19 | 0 | 0
AGA S 2021 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 29 | 0 | 0
AGA D 2021 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 5 | 0 | 0
SO D 2021 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 2 | 0 | 0
SO C2021 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | 9 | 0 | 0
SO US 2021 |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Share-based compensation annual expense | € 2 | € 0 | € 0

X
- Definition The amount of share-based compensation annual expense. + References No definition available. + Details
Name: | gnft_SharebasedCompensationAnnualExpense
Namespace Prefix: | gnft_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with 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
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS20161Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS20162Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD20161Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD20162Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO20161Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO20162Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS20161Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS20162Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS20171Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS20172Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD20171Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD20172Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO20171Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO20172Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS20171Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS20172Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_BSA2017AMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_BSA2017BMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SO2019USMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_BSA2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOD2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOC2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAS2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_AGAD2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOD2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOC2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=gnft_SOUS2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |