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Trade Receivables, Net (Details) - Schedule of allowance for doubtful accounts | 12 Months Ended
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Dec. 31, 2020 USD ($)
Schedule of allowance for doubtful accounts [Abstract] |
Balance at beginning balance | $ (2,999)
Recovery of doubtful accounts | 2,872
Write off |
Exchange difference | 127
Balance at ending balance |

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- References No definition available. + Details
Name: | gfai_AccountsReceivable
Namespace Prefix: | gfai_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | gfai_ProvisionOfExchangeDifference
Namespace Prefix: | gfai_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Recovery of doubtful accounts. + References No definition available. + Details
Name: | gfai_RecoveryOfDoubtfulAccounts
Namespace Prefix: | gfai_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- References No definition available. + Details
Name: | gfai_ScheduleOfAllowanceForDoubtfulAccountsAbstract
Namespace Prefix: | gfai_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of expense recognised during the period in respect of bad or doubtful debts due from related parties. [Refer: Related parties [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 18 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_18_d&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_ExpenseRecognisedDuringPeriodForBadAndDoubtfulDebtsForRelatedPartyTransaction
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration