XML 87 R77.htm IDEA: XBRL DOCUMENT
v3.25.1

DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Fair value, assets measured on recurring basis (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Agency mortgage-backed securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | $ 308,502 | $ 305,907
Agency collateralized mortgage obligations |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 116,111 | 113,624
States and political subdivisions securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 52,748 | 55,948
Small Business Administration securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 58,553 | 57,894
Interest rate derivative asset |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 6,995 | 8,065
Interest rate derivative liability |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Liabilities fair value | (18,409) | (25,000)
Level 2 | Agency mortgage-backed securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 308,502 | 305,907
Level 2 | Agency collateralized mortgage obligations |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 116,111 | 113,624
Level 2 | States and political subdivisions securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 52,748 | 55,948
Level 2 | Small Business Administration securities |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 58,553 | 57,894
Level 2 | Interest rate derivative asset |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Assets fair value | 6,995 | 8,065
Level 2 | Interest rate derivative liability |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Liabilities fair value | (18,409) | (25,000)
Level 3 |  |
Fair value of recurring basis and the level within the fair value hierarchy in which the fair value measurements |  |
Available-for-Sale Securities | $ 0 | $ 0

X
- Definition Represents the monetary amount of Recurring Assets, Fair Value Disclosure, as of the indicated date. + References No definition available. + Details
Name: | gsbc_RecurringAssetsFairValueDisclosure
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the amount of recurring liabilities fair value disclosure as of the indicated date. + References No definition available. + Details
Name: | gsbc_RecurringLiabilitiesFairValueDisclosure
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-3 + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_MortgageBackedSecuritiesAvailableForSaleFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MortgageBackedSecuritiesIssuedByUSGovernmentSponsoredEnterprisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CollateralizedMortgageObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=gsbc_SmallBusinessAdministrationSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=gsbc_InterestRateDerivativeAssetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=gsbc_InterestRateDerivativeLiabilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |