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Commitments (Details) - Office lease agreements [Member] $ in Thousands	Dec. 31, 2018 USD ($)
Statement Line Items [Line Items]
2019	$ 231
2020	$ 5

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- References

No definition available.

+ Details

Name:	SFET_FutureMinimumPaymentsDueCurrent
Namespace Prefix:	SFET_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	SFET_FutureMinimumPaymentsDueInTwoYears
Namespace Prefix:	SFET_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	SFET_IfrsStatementLineItems
Namespace Prefix:	SFET_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	SFET_AgreementAxis=SFET_OfficeLeaseAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: