XML 106 R92.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Investments in Limited Partnerships - Investments in Community Development Entities and Investments in Limited Partnerships for Federal Rehabilitation/Historic Tax Credits (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Investments in Limited Partnerships |  |  |
Investments in community development entities net carrying amount | $ 361,000 | $ 465,000 |
Credit allowance period | 7 years |  |
Community development entities, minimum period before redemption | 7 years |  |
Usage of investment in community development entities federal new market tax credits | $ 100,000 | 100,000 | $ 100,000
Actual amortization of investment in community development entities | 83,000 | 83,000 | $ 86,000
Investments in limited partnerships for federal or historic tax credits | $ 415,000 | $ 629,000 |
Credit allowance period for federal rehabilitation/historic tax credits | 5 years |  |
For the First three years |  |  |
Investments in Limited Partnerships |  |  |
Percentage of investments on credit allowance period | 5.00% |  |
For the next four years |  |  |
Investments in Limited Partnerships |  |  |
Percentage of investments on credit allowance period | 6.00% |  |

X
- Definition Represents the monetary amount of Actual Amortization of Investment in Community Development Entities, during the indicated time period. + References No definition available. + Details
Name: | gsbc_ActualAmortizationOfInvestmentInCommunityDevelopmentEntities
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the Community Development Entities, Minimum Period Before Redemption. + References No definition available. + Details
Name: | gsbc_CommunityDevelopmentEntitiesMinimumPeriodBeforeRedemption
Namespace Prefix: | gsbc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the credit allowance period. + References No definition available. + Details
Name: | gsbc_CreditAllowancePeriod
Namespace Prefix: | gsbc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the credit allowance period for federal rehabilitation/historic tax credits + References No definition available. + Details
Name: | gsbc_CreditAllowancePeriodForFederalRehabilitationHistoricTaxCredits
Namespace Prefix: | gsbc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the monetary amount of Investments in Community Development Entities Net Carrying Amount, as of the indicated date. + References No definition available. + Details
Name: | gsbc_InvestmentsInCommunityDevelopmentEntitiesNetCarryingAmount
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Investments In Limited Partnerships For Federal Or Historic Tax Credits + References No definition available. + Details
Name: | gsbc_InvestmentsInLimitedPartnershipsForFederalOrHistoricTaxCredits
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the percentage of investments, that are allowed on the credit allowance period. + References No definition available. + Details
Name: | gsbc_PercentageOfInvestmentCreditAllowancePeriod
Namespace Prefix: | gsbc_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the monetary amount of Usage of Investment in Community Development Entities Federal New Market Tax Credits, as of the indicated date. + References No definition available. + Details
Name: | gsbc_UsageOfInvestmentInCommunityDevelopmentEntitiesFederalNewMarketTaxCredits
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 No definition available. + Details
Name: | us-gaap_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=gsbc_FinancialAssetCreditPeriodEqualToOrLessThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=gsbc_FinancialAssetCreditPeriodGreaterThanThreeYearsAndLessThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |