Prepayments and Other Assets, Net (Details) - Schedule of allowance for doubtful accounts - USD ($)	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Schedule Of Allowance For Doubtful Accounts [Abstract]
Beginning balance
Provision	48,373	56,059
Write off	(48,373)	(56,059)
Foreign currency translation adjustments
Ending balance

Amount of allowance for doubtful accounts receivable provision.

No definition available.

Name:	gsun_AllowanceForDoubtfulAccountsReceivableProvision
Namespace Prefix:	gsun_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of allowance for doubtful accounts foreign currency translation adjustments.

+ References

No definition available.

+ Details

Name:	gsun_Allowancefordoubtfulaccountsforeigncurrencytranslationadjustments
Namespace Prefix:	gsun_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	gsun_ScheduleOfAllowanceForDoubtfulAccountsAbstract
Namespace Prefix:	gsun_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of allowance for credit loss on accounts receivable, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5074-111524

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of direct write-downs of accounts receivable charged against the allowance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration