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Income Taxes - Additional Information (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Earliest Tax Year [Member]
Income Tax [Line Items]
Non-Capital Losses Expiration Year	2032	2032
Latest Tax Year [Member]
Income Tax [Line Items]
Non-Capital Losses Expiration Year	2042	2042

X

- Definition

Line items represent income taxes.

+ References

No definition available.

+ Details

Name:	stsff_IncomeTaxLineItems
Namespace Prefix:	stsff_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Non-capital losses expiration year.

+ References

No definition available.

+ Details

Name:	stsff_NonCapitalLossesExpirationYear
Namespace Prefix:	stsff_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_TaxPeriodAxis=us-gaap_EarliestTaxYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TaxPeriodAxis=us-gaap_LatestTaxYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: