XML 89 R61.htm IDEA: XBRL DOCUMENT
v3.22.1

Summary of Significant Accounting Policies - Additional Information (Details) € in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 EUR (€) segment | Dec. 31, 2020 EUR (€)
Disclosure of voluntary change in accounting policy [line items] |  |
Number of segment | segment | 1 |
Impairment loss | € 196 | € 990
Research tax credit, carryforward period (in years) | 3 years |
Software | Top of Range |  |
Disclosure of voluntary change in accounting policy [line items] |  |
Estimated useful lives of software and license agreements | 8 years |
Leased equipment |  |
Disclosure of voluntary change in accounting policy [line items] |  |
Impairment loss | € 62 | € 503

X
- Definition Number of segment. + References No definition available. + Details
Name: | gnft_NumberOfSegment
Namespace Prefix: | gnft_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Research Tax Credit, Carryforward Period + References No definition available. + Details
Name: | gnft_ResearchTaxCreditCarryforwardPeriod
Namespace Prefix: | gnft_
Data Type: | xbrli:durationItemType
Balance Type: | na
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_DisclosureOfVoluntaryChangeInAccountingPolicyLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 130 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_130_b&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_130_d_ii&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ImpairmentLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2021-01-01 -Paragraph 118 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=38&code=ifrs-tx-2021-en-r&anchor=para_118_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimeIntangibleAssetsOtherThanGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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