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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loan modifications (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($)
LOANS AND ALLOWANCE FOR CREDIT LOSSES |
Term | $ 4
Combination | 250
Total Modification | 254
Commercial real estate |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |
Combination | 247
Total Modification | 247
Consumer |
LOANS AND ALLOWANCE FOR CREDIT LOSSES |
Term | 4
Combination | 3
Total Modification | $ 7

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- Definition Represents the amount of loan restructuring modification combination, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents the amount of loan restructuring modification term, during the indicated time period. + References No definition available. + Details
Name: | gsbc_LoanRestructuringModificationsTerm
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

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- Definition Amount of financing receivable modified on trial basis. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |