Amount of payment in financing receivable modified during the period.

No definition available.

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- Definition

Percentage of maximum of concession granted for respective classes of loan portfolios.

+ References

No definition available.

+ Details

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- Definition

Amount of minimum loan balance which are identified primarily by a classified risk rating required for collateral dependent loans including, but not limited to any loan in process of foreclosure or repossession.

+ References

No definition available.

+ Details

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- Definition

Amount of non-accrual loans for credit losses amortized cost.

+ References

No definition available.

+ Details

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- Definition

Amount of expense related to estimated loss from loan and lease transactions.

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Amount of troubled debt restructuring loan evaluated on individual.

+ References

No definition available.

+ Details

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Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 16
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-16

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of credit loss expense (reversal of expense) for financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 220
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(11))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1

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Balance Type:	debit
Period Type:	duration

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LoanRestructuringModificationAxis=us-gaap_PrincipalForgivenessMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)		3 Months Ended		12 Months Ended
	Jan. 01, 2021	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
LOANS AND ALLOWANCE FOR CREDIT LOSSES
TDR loans evaluated on individual	$ 100,000
Interest income		$ 0	$ 0
Non-accrual loans for no related allowance amortized cost		2,600,000		$ 792,000
Minimum loan balance required for collateral-dependent loans		100,000
Provision expense on its portfolio of outstanding loans		500,000	1,500,000
Provision for loan losses		$ 500,000	1,500,000
Maximum percentage of concessions granted of their respective classes of loan portfolios		2.00%
Consumer \| Principal forgiveness
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan paid during period		$ 14,000	4,000
Allowance for unfunded commitment
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Provision for loan losses		$ (130,000)	$ 826,000