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Trade and Other payables and Other Current Liabilities (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
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Trade And Other Payables And Other Current Liabilities [Abstract] |  |
Provision for penalty claims | $ 5,900 | $ 14,600

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- Definition Amount of provision for penalty claims. + References No definition available. + Details
Name: | gfai_ProvisionForPenaltyClaims
Namespace Prefix: | gfai_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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