XML 51 R41.htm IDEA: XBRL DOCUMENT v3.21.2

INVESTMENT SECURITIES - Investment Securities (Details) - Available-for-sale Securities - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Available-for-sale Securities, Amortized Cost Amount	$ 430,819	$ 384,807
Available-for-sale Securities, Gross Unrealized Gain	22,176	31,338
Available-for-sale Securities, Gross Unrealized Loss	2,155	1,212
Available-for-sale Securities, Fair Value	450,840	414,933
Agency mortgage-backed securities
Available-for-sale Securities, Amortized Cost Amount	158,456	151,106
Available-for-sale Securities, Gross Unrealized Gain	14,171	19,665
Available-for-sale Securities, Gross Unrealized Loss	777	831
Available-for-sale Securities, Fair Value	171,850	169,940
Agency collateralized mortgage obligations
Available-for-sale Securities, Amortized Cost Amount	214,533	168,472
Available-for-sale Securities, Gross Unrealized Gain	5,155	8,524
Available-for-sale Securities, Gross Unrealized Loss	1,314	375
Available-for-sale Securities, Fair Value	218,374	176,621
States and political subdivisions securities
Available-for-sale Securities, Amortized Cost Amount	39,177	45,196
Available-for-sale Securities, Gross Unrealized Gain	1,883	2,135
Available-for-sale Securities, Gross Unrealized Loss	64	6
Available-for-sale Securities, Fair Value	40,996	47,325
Small Business Administration securities
Available-for-sale Securities, Amortized Cost Amount	18,653	20,033
Available-for-sale Securities, Gross Unrealized Gain	967	1,014
Available-for-sale Securities, Fair Value	$ 19,620	$ 21,047

X

- Definition

Represents the monetary amount of Available for Sale Securities Fair Value, as of the indicated date.

+ References

No definition available.

+ Details

Name:	gsbc_AvailableForSaleSecuritiesFairValue
Namespace Prefix:	gsbc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesAmortizedCost
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of unrealized gain before deducting unrealized loss on investments in debt and equity securities classified as available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

+ Details

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

X

- Definition

Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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: