Name:	ifrs-full_DisclosureOfRangeOfExercisePricesOfOutstandingShareOptionsLineItems
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The exercise price of share options granted.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_ExercisePriceShareOptionsGranted2019
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

The number of share options granted in a share-based payment arrangement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_ii&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_NumberOfShareOptionsGrantedInSharebasedPaymentArrangement
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

Number of exercise price per share.

No definition available.

Name:	synx_ExercisePricePerShare
Namespace Prefix:	synx_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

Fair value of the aforesaid options.

No definition available.

Name:	synx_FairValueOfAforesaidOptions
Namespace Prefix:	synx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represent the option exercisable ratio.

No definition available.

Name:	synx_OptionExercisableRatio
Namespace Prefix:	synx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Percentage of discount rate.

No definition available.

Name:	synx_PercentageOfDiscountRate
Namespace Prefix:	synx_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	duration

Share based payment options expire term.

No definition available.

Name:	synx_ShareBasedPaymentOptionsExpireTerm
Namespace Prefix:	synx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Represent the share based payment vesting period, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	synx_ShareBasedPaymentVestingPeriod
Namespace Prefix:	synx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=synx_EmployeesAndOfficersMember
Namespace Prefix:
Data Type:	na
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Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
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Data Type:	na
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Namespace Prefix:
Data Type:	na
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Namespace Prefix:
Data Type:	na
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