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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) |  |
Unrealized appreciation (depreciation) on available-for-sale securities, net of taxes | $ 2,258 | $ (5,966)
Unrealized (gain) loss on securities transferred to held-to-maturity, net of taxes (credit) | (5) | 224
Reclassification adjustment for losses (gains) included in net income, net of taxes (credit) | 0 | 2
Amortization of realized gain on termination of cash flow hedge, net of taxes (credit) | (457) | (456)
Change in value of active cash flow hedges, net of taxes (credit) | $ 2,146 | $ (911)

X
- Definition Represents the monetary amount of Tax Effect (Credit) on Amortization of Realized Gain on Termination of Cash Flow Hedge, during the indicated time period. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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X
- Definition Represents the monetary amount of Tax Effect of Change in Fair Value of Cash Flow Hedge Taxes, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | gsbc_
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X
- Definition Represents the monetary amount of Tax Effect of Unrealized Appreciation (Depreciation) on Available for Sale Securities Taxes (Credit), during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | gsbc_
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X
- Definition Represents the monetary amount of Tax Effect of Unrealized gain on securities transferred to held-to-maturity, during the indicated time period. + References No definition available. + Details
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Namespace Prefix: | gsbc_
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X
- Definition Represents the monetary amount of Tax Effect Reclassification Adjustment for Gains Included in Net Income Taxes (Credit) Taxes, during the indicated time period. + References No definition available. + Details
Name: | gsbc_TaxEffectReclassificationAdjustmentForGainsIncludedInNetIncomeTaxesCreditTaxes
Namespace Prefix: | gsbc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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