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Share Capital and Reserves (Details) - Schedule of composition of share capital (Parentheticals) - ₪ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Schedule Of Composition Of Share Capital Abstract
Authorized, Ordinary shares, par value	₪ 0.01	₪ 0.01
Issued and outstanding, Ordinary shares, par value	₪ 0.01	₪ 0.01

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- References

No definition available.

+ Details

Name:	svre_AuthorizedOrdinarySharesParValue
Namespace Prefix:	svre_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

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- Definition

Issued and outstanding, Ordinary shares, par value.

+ References

No definition available.

+ Details

Name:	svre_IssuedAndOutstandingOrdinarySharesParShare
Namespace Prefix:	svre_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	svre_ScheduleOfCompositionOfShareCapitalAbstract
Namespace Prefix:	svre_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration