$FGBI
First Guaranty Bancshares Inc Stock $fgbi

$fgbi Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000140853423000018 Filed on March 16, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$41.29M		$136.6M
YoY Change	35.46%		22.03%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.011M	$1.109M	$3.100M
YoY Change	60.48%	-19.05%	-8.82%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$18.99M		$36.53M
YoY Change	245.45%		63.84%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$4.525M	$6.397M	$36.39M
YoY Change	-52.68%	-37.04%	5.62%
Income Tax	$1.057M	$1.276M	$7.506M
% Of Pretax Income	23.36%	19.95%	20.63%
Net Earnings	$3.468M	$4.539M	$28.88M
YoY Change	-54.28%	-43.61%	5.81%
Net Earnings / Revenue	8.4%		21.15%
Basic Earnings Per Share	$0.27		$2.48
Diluted Earnings Per Share	$0.27	$0.42	$2.48
COMMON SHARES
Basic Shares Outstanding	10.72M shares	10.72M shares	10.72M shares
Diluted Shares Outstanding

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$570.2M	$534.7M
YoY Change	-2.61%	-14.59%
Cash & Equivalents	$168.9M	$83.22M
Short-Term Investments	$401.3M	$451.5M
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$58.60M	$58.21M	$58.21M
YoY Change	0.39%	-0.74%	-0.67%
Goodwill	$12.90M	$12.90M
YoY Change	0.0%	0.0%
Intangibles	$4.770M	$4.979M
YoY Change	-13.59%	-15.92%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$3.238B	$3.151B	$3.151B
YoY Change	11.26%	9.49%	9.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$4.608M	$4.289M	$4.289M
YoY Change	28.57%	-4.69%	-4.69%
Deferred Revenue
YoY Change
Short-Term Debt	$26.61M	$146.4M	$26.44M
YoY Change	65.22%	2173.64%	313.16%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$31.21M	$4.289M	$4.289M
YoY Change	770.93%	-4.69%	-4.69%
LONG-TERM LIABILITIES
Long-Term Debt	$36.12M	$36.93M	$36.93M
YoY Change	-7.84%	-7.68%	-7.68%
Other Long-Term Liabilities	$9.202M	$4.906M	$4.906M
YoY Change	65.5%	36.28%	36.28%
Total Long-Term Liabilities	$45.32M	$41.83M	$41.83M
YoY Change	1.27%	-4.05%	-4.05%
TOTAL LIABILITIES
Total Short-Term Liabilities	$31.21M	$4.289M	$4.289M
Total Long-Term Liabilities	$45.32M	$41.83M	$41.83M
Total Liabilities	$3.009B	$2.916B	$2.916B
YoY Change	11.93%	9.88%	9.88%
SHAREHOLDERS EQUITY
Retained Earnings	$68.45M	$76.35M
YoY Change	10.51%	34.77%
Common Stock	$140.8M	$140.8M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$228.7M	$235.0M	$235.0M
YoY Change
Total Liabilities & Shareholders Equity	$3.238B	$3.151B	$3.151B
YoY Change	11.26%	9.49%	9.49%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$3.468M	$4.539M	$28.88M
YoY Change	-54.28%	-43.61%	5.81%
Depreciation, Depletion And Amortization	$1.011M	$1.109M	$3.100M
YoY Change	60.48%	-19.05%	-8.82%
Cash From Operating Activities	$4.032M	$3.303M	$36.87M
YoY Change	-51.57%	-81.22%	39.01%
INVESTING ACTIVITIES
Capital Expenditures	$1.117M	$740.0K	$2.643M
YoY Change	109.57%	-535.29%	19.92%
Acquisitions
YoY Change
Other Investing Activities	-$3.049M	-$80.85M	-$465.3M
YoY Change	-98.19%	8.37%	3.29%
Cash From Investing Activities	-$4.166M	-$81.59M	-$467.9M
YoY Change	-97.53%	9.1%	3.37%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net	$813.0K		$5.783M
YoY Change	-75.7%		-66.61%
Cash From Financing Activities	$85.85M	52.15M	$252.3M
YoY Change	172.85%	5.69%	-35.04%
NET CHANGE
Cash From Operating Activities	$4.032M	3.303M	$36.87M
Cash From Investing Activities	-$4.166M	-81.59M	-$467.9M
Cash From Financing Activities	$85.85M	52.15M	$252.3M
Net Change In Cash	$85.72M	-26.14M	-$178.7M
YoY Change	-166.35%	232.97%	374.38%
FREE CASH FLOW
Cash From Operating Activities	$4.032M	$3.303M	$36.87M
Capital Expenditures	$1.117M	$740.0K	$2.643M
Free Cash Flow	$2.915M	$2.563M	$34.22M
YoY Change	-62.59%	-85.57%	40.74%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0001408534
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	fgbi	Financing Receivable Initial Fixed Rate Period Tranche One FinancingReceivableInitialFixedRatePeriodTrancheOne	P1Y
CY2022	fgbi	Financing Receivable Initial Fixed Rate Period Tranche Two FinancingReceivableInitialFixedRatePeriodTrancheTwo	P3Y
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CY2022	us-gaap	Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Other Comprehensive Income Extensible List FairValueRecurringBasisUnobservableInputReconciliationAssetGainLossStatementOfOtherComprehensiveIncomeExtensibleList	http://fasb.org/us-gaap/2022#OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	148000000	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	10716796	shares
CY2022	dei	Auditor Name AuditorName	Griffith, DeLaney, Hillman & Lett, CPAs, PSC
CY2022	dei	Auditor Location AuditorLocation	Ashland, Kentucky
CY2021	dei	Auditor Name AuditorName	Castaing, Hussey & Lolan, LLC
CY2021	dei	Auditor Location AuditorLocation	New Iberia, Louisiana
CY2021Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	261749000	usd
CY2021Q4	us-gaap	Federal Funds Sold FederalFundsSold	183000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	261932000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	131458000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	210620000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	242560000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	320068000	usd
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	153536000	usd
CY2022Q4	us-gaap	Marketable Securities MarketableSecurities	451526000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Stock FederalHomeLoanBankStock	6528000	usd
CY2022Q4	us-gaap	Loans Receivable Held For Sale Amount LoansReceivableHeldForSaleAmount	0	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	23518000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24029000	usd
CY2022Q4	us-gaap	Notes Receivable Net NotesReceivableNet	2495559000	usd
CY2021Q4	us-gaap	Notes Receivable Net NotesReceivableNet	2135330000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58206000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	12900000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4979000	usd
CY2022Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	113000	usd
CY2022Q4	us-gaap	Interest Receivable InterestReceivable	13002000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	25315000	usd
CY2022Q4	us-gaap	Assets Assets	3151347000	usd
CY2022Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	524415000	usd
CY2022Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1460259000	usd
CY2022Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	205760000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	533358000	usd
CY2022Q4	us-gaap	Deposits Deposits	2723792000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	120000000	usd
CY2022Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	20000000	usd
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CY2022Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	4289000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Long Term FederalHomeLoanBankAdvancesLongTerm	0	usd
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CY2022Q4	us-gaap	Junior Subordinated Notes JuniorSubordinatedNotes	15000000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	4906000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	2916356000	usd
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1000
CY2022Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	100000	shares
CY2022Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	34500	shares
CY2021Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	34500	shares
CY2022Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	34500	shares
CY2022Q4	us-gaap	Preferred Stock Value PreferredStockValue	33058000	usd
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CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100600000	shares
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CY2022Q4	us-gaap	Common Stock Value CommonStockValue	10717000	usd
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	10717000	usd
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CY2021Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	130093000	usd
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CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	56654000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-15228000	usd
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CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2878120000	usd
CY2021	us-gaap	Interest And Fee Income Loans And Leases Held In Portfolio InterestAndFeeIncomeLoansAndLeasesHeldInPortfolio	103353000	usd
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CY2021	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	0	usd
CY2022	us-gaap	Interest Expense Demand Deposit Accounts InterestExpenseDemandDepositAccounts	21419000	usd
CY2022	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	915000	usd
CY2021	us-gaap	Interest Expense Savings Deposits InterestExpenseSavingsDeposits	204000	usd
CY2022	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	10682000	usd
CY2021	us-gaap	Interest Expense Time Deposits InterestExpenseTimeDeposits	12893000	usd
CY2022	us-gaap	Interest Expense Borrowings InterestExpenseBorrowings	3518000	usd
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CY2021	us-gaap	Interest Expense InterestExpense	22299000	usd
CY2022	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	100042000	usd
CY2021	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	89618000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	3656000	usd
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2055000	usd
CY2022	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	96386000	usd
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CY2021	fgbi	Fees And Commissions1 FeesAndCommissions1	2699000	usd
CY2022	fgbi	Fees And Commissions Credit And Debit Cards1 FeesAndCommissionsCreditAndDebitCards1	3406000	usd
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CY2021	us-gaap	Noninterest Income NoninterestIncome	10760000	usd
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CY2022	us-gaap	Occupancy Net OccupancyNet	8932000	usd
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CY2021	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	417557000	usd
CY2022	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	153053000	usd
CY2021	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	551563000	usd
CY2022	us-gaap	Payments To Acquire Trust Preferred Investments PaymentsToAcquireTrustPreferredInvestments	0	usd
CY2021	us-gaap	Payments To Acquire Trust Preferred Investments PaymentsToAcquireTrustPreferredInvestments	1000000	usd
CY2022	fgbi	Proceeds From Redemption Of Investment In Preferred Securities ProceedsFromRedemptionOfInvestmentInPreferredSecurities	0	usd
CY2021	fgbi	Proceeds From Redemption Of Investment In Preferred Securities ProceedsFromRedemptionOfInvestmentInPreferredSecurities	1500000	usd
CY2022	us-gaap	Proceeds From Sale Of Federal Home Loan Bank Stock ProceedsFromSaleOfFederalHomeLoanBankStock	2182000	usd
CY2022	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	7331000	usd
CY2021	us-gaap	Payments To Acquire Federal Home Loan Bank Stock PaymentsToAcquireFederalHomeLoanBankStock	155000	usd
CY2021	us-gaap	Payments To Acquire Loans Receivable PaymentsToAcquireLoansReceivable	320347000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2204000	usd
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	77000	usd
CY2021	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1330000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-452645000	usd
CY2021	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	430174000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-49682000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	5783000	usd
CY2022	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	33058000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	2328000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	1384000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6859000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	6393000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	252333000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	388452000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-178713000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-37673000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	261932000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	299605000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	83219000	usd
CY2022	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	558000	usd
CY2021	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	1782000	usd
CY2022	fgbi	Debt Securities Available For Sale Transfer Amount DebtSecuritiesAvailableForSaleTransferAmount	176181000	usd
CY2021	fgbi	Debt Securities Available For Sale Transfer Amount DebtSecuritiesAvailableForSaleTransferAmount	160014000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	77508000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	242560000	usd
CY2021Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	153536000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	36725000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	23111000	usd
CY2022	fgbi	Number Of Banking Offices NumberOfBankingOffices	36	office
CY2022	fgbi	Number Of Automated Teller Machines NumberOfAutomatedTellerMachines	48	atm
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Use of estimates</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with generally accepted accounting principles requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. Material estimates that are particularly susceptible to significant change in the near-term relate to the determination of the allowance for loan and lease losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, and the valuation of investment securities. In connection with the determination of the allowance for loan and lease losses and real estate owned, First Guaranty obtains independent appraisals for significant properties.</span></div>
CY2022	fgbi	Period Past Due After Which Evaluation Is Made For Discontinuation Of Interest Accrual On Loan PeriodPastDueAfterWhichEvaluationIsMadeForDiscontinuationOfInterestAccrualOnLoan	P90D
CY2022	fgbi	Period Of Payment Performance After Which Loans Are Returned To Accrual Status PeriodOfPaymentPerformanceAfterWhichLoansAreReturnedToAccrualStatus	P6M
CY2022	fgbi	Period Of Performance After Which Company Evaluates Td Rs That Have Subsequently Been Restructured And Returned To Market Terms PeriodOfPerformanceAfterWhichCompanyEvaluatesTDRsThatHaveSubsequentlyBeenRestructuredAndReturnedToMarketTerms	P6M
CY2022Q4	fgbi	Minimum Balance Of Impaired Loans Over Which Impairment Method Is Applied MinimumBalanceOfImpairedLoansOverWhichImpairmentMethodIsApplied	500000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	898000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2474000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	210620000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	320068000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2021Q4	fgbi	Common Stock Dividend Percentage CommonStockDividendPercentage	0.10
CY2022	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2022	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-style:italic;font-weight:700;line-height:120%">Reclassifications</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Certain reclassifications have been made to prior year end financial statements in order to conform to the classification adopted for reporting in 2022.</span></div>
CY2021Q4	fgbi	Federal Reserve Required Cash Deposit FederalReserveRequiredCashDeposit	0	usd
CY2022Q4	fgbi	Federal Reserve Required Cash Deposit FederalReserveRequiredCashDeposit	0	usd
CY2022Q4	fgbi	Number Of Accounts That Exceeded Fdic Insurable Limit NumberOfAccountsThatExceededFDICInsurableLimit	3	account
CY2022Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	4600000	usd
CY2021Q4	fgbi	Number Of Accounts That Exceeded Fdic Insurable Limit NumberOfAccountsThatExceededFDICInsurableLimit	3	account
CY2021Q4	us-gaap	Cash Uninsured Amount CashUninsuredAmount	2000000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	134845000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	31000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3418000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	131458000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	212196000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	2951000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	150585000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	51087000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	50911000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	53552000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	51664000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	20001000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	19129000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	7494000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	7141000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	132134000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	128845000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	2711000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	2613000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	134845000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	131458000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	0	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	402000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	344000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	74092000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	62211000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	245574000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	180005000	usd
CY2022Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	320068000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	242560000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	63	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	23090000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1114000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	18	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	100548000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	2304000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	81	security
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	123638000	usd
CY2022Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	3418000	usd
CY2022Q4	fgbi	Held To Maturity Securities In Unrealized Loss Positions Less Than Twelve Months Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsLessThanTwelveMonthsQualitativeDisclosureNumberOfPositions	72	security
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	136726000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	29729000	usd
CY2022Q4	fgbi	Held To Maturity Securities In Unrealized Loss Positions More Than Twelve Months Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsMoreThanTwelveMonthsQualitativeDisclosureNumberOfPositions	16	security
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	105834000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	47779000	usd
CY2022Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	88	security
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	242560000	usd
CY2022Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	77508000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	75	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	177727000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2300000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	8	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	454000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	174000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	83	security
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	178181000	usd
CY2021Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2474000	usd
CY2021Q4	fgbi	Held To Maturity Securities In Unrealized Loss Positions Less Than Twelve Months Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsLessThanTwelveMonthsQualitativeDisclosureNumberOfPositions	16	security
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	150585000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	2951000	usd
CY2021Q4	fgbi	Held To Maturity Securities In Unrealized Loss Positions More Than Twelve Months Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsMoreThanTwelveMonthsQualitativeDisclosureNumberOfPositions	0	security
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	0	usd
CY2021Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	16	security
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	150585000	usd
CY2021Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	2951000	usd
CY2022Q4	fgbi	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	169	security
CY2022Q4	fgbi	Debt Securities Continuous Unrealized Loss Position Accumulated Loss As Percentage Of All Individual Securities Amortized Cost Basis DebtSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAsPercentageOfAllIndividualSecuritiesAmortizedCostBasis	0.181
CY2022Q4	fgbi	Debt Securities Continuous Unrealized Loss Position Accumulated Loss As Percentage Of Investment Securities Portfolio DebtSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAsPercentageOfInvestmentSecuritiesPortfolio	0.178
CY2022Q4	fgbi	Securities In Unrealized Loss Positions More Than Twelve Months Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsMoreThanTwelveMonthsQualitativeDisclosureNumberOfPositions	34	security
CY2022Q4	fgbi	Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	169	security
CY2022Q4	fgbi	Securities In Unrealized Loss Positions More Than Twelve Months Qualitative Disclosure Number Of Positions SecuritiesInUnrealizedLossPositionsMoreThanTwelveMonthsQualitativeDisclosureNumberOfPositions	34	security
CY2022Q4	fgbi	Securities Continuous Unrealized Loss Position Twelve Months Or Longer Amortized Cost Basis SecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerAmortizedCostBasis	256500000	usd
CY2022Q4	fgbi	Securities Continuous Unrealized Loss Position Accumulated Loss SecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	50100000	usd
CY2022Q4	fgbi	Debt Securities Held To Maturity Number Of Securities With Other Than Temporary Impairment Loss DebtSecuritiesHeldToMaturityNumberOfSecuritiesWithOtherThanTemporaryImpairmentLoss	0	security
CY2021Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	usd
CY2020Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	100000	usd
CY2022	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	usd
CY2021	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions No Previous Impairment OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsNoPreviousImpairment	0	usd
CY2022	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	usd
CY2021	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	usd
CY2022	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	usd
CY2021	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Cash Flows OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsCashFlows	0	usd
CY2022	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	usd
CY2021	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	100000	usd
CY2022Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	usd
CY2022	fgbi	Financing Receivable Initial Fixed Rate Period Tranche Three FinancingReceivableInitialFixedRatePeriodTrancheThree	P5Y
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2526720000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1142000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	7643000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0	usd
CY2022	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	0	usd
CY2021	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	0	usd
CY2020	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	0	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	100000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	1000000	usd
CY2022	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	100000	usd
CY2021	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	400000	usd
CY2022	fgbi	Proceedsfrom Saleof Debt Securities Availableforsale Tax ProceedsfromSaleofDebtSecuritiesAvailableforsaleTax	3000	usd
CY2021	fgbi	Proceedsfrom Saleof Debt Securities Availableforsale Tax ProceedsfromSaleofDebtSecuritiesAvailableforsaleTax	100000	usd
CY2022	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3100000	usd
CY2021	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	49700000	usd
CY2022	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	15200000	usd
CY2021	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	6600000	usd
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	13000	usd
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	600000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2526720000	usd
CY2022Q4	fgbi	Financing Receivable Ratio Of Individual Loans Receivable To All Loans Before Unearned Income FinancingReceivableRatioOfIndividualLoansReceivableToAllLoansBeforeUnearnedIncome	1.000
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2166048000	usd
CY2021Q4	fgbi	Financing Receivable Ratio Of Individual Loans Receivable To All Loans Before Unearned Income FinancingReceivableRatioOfIndividualLoansReceivableToAllLoansBeforeUnearnedIncome	1.000
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	7643000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	6689000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2022Q4	fgbi	Financing Receivables That Are Maturing After One Year Or Less FinancingReceivablesThatAreMaturingAfterOneYearOrLess	372124000	usd
CY2021Q4	fgbi	Financing Receivables That Are Maturing After One Year Or Less FinancingReceivablesThatAreMaturingAfterOneYearOrLess	357120000	usd
CY2022Q4	fgbi	Financing Receivables That Are Maturing After One Year But Not More Than Five Years FinancingReceivablesThatAreMaturingAfterOneYearButNotMoreThanFiveYears	1240854000	usd
CY2021Q4	fgbi	Financing Receivables That Are Maturing After One Year But Not More Than Five Years FinancingReceivablesThatAreMaturingAfterOneYearButNotMoreThanFiveYears	1312149000	usd
CY2022Q4	fgbi	Financing Receivables That Are Maturing After Five Years But Not More Than Fifteen Years FinancingReceivablesThatAreMaturingAfterFiveYearsButNotMoreThanFifteenYears	330676000	usd
CY2021Q4	fgbi	Financing Receivables That Are Maturing After Five Years But Not More Than Fifteen Years FinancingReceivablesThatAreMaturingAfterFiveYearsButNotMoreThanFifteenYears	221555000	usd
CY2022Q4	fgbi	Financing Receivables That Are Maturing After Fifteen Years FinancingReceivablesThatAreMaturingAfterFifteenYears	569500000	usd
CY2021Q4	fgbi	Financing Receivables That Are Maturing After Fifteen Years FinancingReceivablesThatAreMaturingAfterFifteenYears	258509000	usd
CY2022Q4	fgbi	Financing Receivable Gross Carrying Amount Net Nonaccrual FinancingReceivableGrossCarryingAmountNetNonaccrual	2513154000	usd
CY2021Q4	fgbi	Financing Receivable Gross Carrying Amount Net Nonaccrual FinancingReceivableGrossCarryingAmountNetNonaccrual	2149333000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	13566000	usd
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16715000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2526720000	usd
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2166048000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	7643000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	6689000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2166048000	usd
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1245000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	6689000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	13600000	usd
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16700000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	13566000	usd
CY2021Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	16715000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2526720000	usd
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2166048000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	7643000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	6689000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2022Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	4258000	usd
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Outstanding Balance CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesOutstandingBalance	5143000	usd
CY2022	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	700000	usd
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Provision For Loan Losses1 CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesProvisionForLoanLosses1	700000	usd
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	2378000	usd
CY2020Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	2892000	usd
CY2022	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0	usd
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Additions CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAdditions	0	usd
CY2022	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	268000	usd
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Accretion CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldAccretion	514000	usd
CY2022	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	0	usd
CY2021	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Reclassifications To From Nonaccretable Difference CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYieldReclassificationsToFromNonaccretableDifference	0	usd
CY2022Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	2110000	usd
CY2021Q4	us-gaap	Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesAccretableYield	2378000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24029000	usd
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	6086000	usd
CY2022	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1919000	usd
CY2022	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	3656000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	23518000	usd
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24518000	usd
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	3122000	usd
CY2021	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	578000	usd
CY2021	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	2055000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24029000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2877000	usd
CY2022Q4	fgbi	Financing Receivable Allowance For Credit Losses Individually Evaluated For Purchased Credit Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForPurchasedCreditImpairment	724000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	19917000	usd
CY2022Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	23518000	usd
CY2022Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	19436000	usd
CY2022Q4	fgbi	Financing Receivable Individually Evaluated For Purchased Credit Impairment FinancingReceivableIndividuallyEvaluatedForPurchasedCreditImpairment	4258000	usd
CY2022Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2503026000	usd
CY2022Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2526720000	usd
CY2022Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	7643000	usd
CY2022Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2519077000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	2171000	usd
CY2021Q4	fgbi	Financing Receivable Allowance For Credit Losses Individually Evaluated For Purchased Credit Impairment FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForPurchasedCreditImpairment	725000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	21133000	usd
CY2021Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24029000	usd
CY2021Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	15025000	usd
CY2021Q4	fgbi	Financing Receivable Individually Evaluated For Purchased Credit Impairment FinancingReceivableIndividuallyEvaluatedForPurchasedCreditImpairment	5143000	usd
CY2021Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2145880000	usd
CY2021Q4	us-gaap	Financing Receivable Before Allowance For Credit Loss And Fee FinancingReceivableBeforeAllowanceForCreditLossAndFee	2166048000	usd
CY2021Q4	us-gaap	Financing Receivable Deferred Income FinancingReceivableDeferredIncome	6689000	usd
CY2021Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	2159359000	usd
CY2022Q4	fgbi	Financing Receivable Recorded Investment Not Accruing Interest FinancingReceivableRecordedInvestmentNotAccruingInterest	13600000	usd
CY2021Q4	fgbi	Financing Receivable Recorded Investment Not Accruing Interest FinancingReceivableRecordedInvestmentNotAccruingInterest	16700000	usd
CY2022Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1100000	usd
CY2021Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1200000	usd
CY2022Q4	fgbi	Financing Receivable Average Recorded Investment Nonaccrual Status FinancingReceivableAverageRecordedInvestmentNonaccrualStatus	12800000	usd
CY2021Q4	fgbi	Financing Receivable Average Recorded Investment Nonaccrual Status FinancingReceivableAverageRecordedInvestmentNonaccrualStatus	17100000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	14308000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	14580000	usd
CY2022	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	14430000	usd
CY2022	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	152000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	5128000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	5715000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2877000	usd
CY2022	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	5208000	usd
CY2022	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	67000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	19436000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	20295000	usd
CY2022Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2877000	usd
CY2022	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	19638000	usd
CY2022	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	219000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	7017000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	7956000	usd
CY2021	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	7826000	usd
CY2021	us-gaap	Impaired Financing Receivable With No Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithNoRelatedAllowanceInterestIncomeAccrualMethod	167000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	8008000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	8399000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2171000	usd
CY2021	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	8200000	usd
CY2021	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	174000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	15025000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	16355000	usd
CY2021Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	2171000	usd
CY2021	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	16026000	usd
CY2021	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	341000	usd
CY2022	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1	loan
CY2022Q4	fgbi	Financing Receivable Troubled Debt Restructuring Number Of Contracts FinancingReceivableTroubledDebtRestructuringNumberOfContracts	1	loan
CY2022Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1094000	usd
CY2021Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	3382000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	102670000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	100200000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	44464000	usd
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	41563000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58206000	usd
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	58637000	usd
CY2022	us-gaap	Depreciation Depreciation	3100000	usd
CY2021	us-gaap	Depreciation Depreciation	3400000	usd
CY2022Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	0	usd
CY2021Q4	us-gaap	Capitalized Contract Cost Net CapitalizedContractCostNet	61000	usd
CY2022	us-gaap	Impairment Of Intangible Assets Indefinitelived Excluding Goodwill ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill	0	usd
CY2021Q4	us-gaap	Goodwill Goodwill	12900000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	12900000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	18461000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	13482000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4979000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	18399000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	12477000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	5922000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	700000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	800000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	696000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	696000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	696000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	696000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	696000	usd
CY2022Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	113000	usd
CY2021Q4	us-gaap	Real Estate Acquired Through Foreclosure RealEstateAcquiredThroughForeclosure	2593000	usd
CY2022Q4	fgbi	Other Real Estate Foreclosed Assets And Repossessed Assets Allowance For Credit Loss OtherRealEstateForeclosedAssetsAndRepossessedAssetsAllowanceForCreditLoss	0	usd
CY2021Q4	fgbi	Other Real Estate Foreclosed Assets And Repossessed Assets Allowance For Credit Loss OtherRealEstateForeclosedAssetsAndRepossessedAssetsAllowanceForCreditLoss	521000	usd
CY2022Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	113000	usd
CY2021Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	2072000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	146442000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	6439000	usd
CY2022	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	146442000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	312910000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	148386000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	34624000	usd
CY2022Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	25191000	usd
CY2022Q4	fgbi	Time Deposit Maturities After Year Four TimeDepositMaturitiesAfterYearFour	12247000	usd
CY2022Q4	us-gaap	Time Deposits TimeDeposits	533358000	usd
CY2022Q4	us-gaap	Interest Bearing Domestic Deposit Brokered InterestBearingDomesticDepositBrokered	250000	usd
CY2022Q4	fgbi	Time Deposits250000 Or More TimeDeposits250000OrMore	155000000	usd
CY2021Q4	fgbi	Time Deposits250000 Or More TimeDeposits250000OrMore	159100000	usd
CY2022Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	120000000	usd
CY2021Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary Due Within One Year Of Balance Sheet Date FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate	0	usd
CY2022Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	6442000	usd
CY2021Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	6439000	usd
CY2022Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	20000000	usd
CY2021Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	0	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	146442000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	6439000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	146400000	usd
CY2021Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	6400000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	26500000	usd
CY2022Q4	us-gaap	Lines Of Credit Current LinesOfCreditCurrent	20000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	505500000	usd
CY2021Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	597600000	usd
CY2021	us-gaap	Shortterm Debt Maximum Monthend Outstanding Amount ShorttermDebtMaximumMonthendOutstandingAmount	56369000	usd
CY2022	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	42149000	usd
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	10458000	usd
CY2022	us-gaap	Short Term Debt Weighted Average Interest Rate Over Time ShortTermDebtWeightedAverageInterestRateOverTime	0.0512
CY2021	us-gaap	Short Term Debt Weighted Average Interest Rate Over Time ShortTermDebtWeightedAverageInterestRateOverTime	0.0140
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0486
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0223
CY2022Q4	fgbi	Number Of Credit Facilities NumberOfCreditFacilities	2	facility
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	36900000	usd
CY2022Q4	us-gaap	Banking Regulation Capital Conservation Buffer Capital Conserved Minimum BankingRegulationCapitalConservationBufferCapitalConservedMinimum	0.025
CY2022Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	10000000000	usd
CY2020Q1	fgbi	Banking Regulation Community Bank Leverage Ratio BankingRegulationCommunityBankLeverageRatio	0.09
CY2020Q2	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.08
CY2021	fgbi	Banking Regulation Increase Community Bank Leverage Ratio BankingRegulationIncreaseCommunityBankLeverageRatio	0.085
CY2021	fgbi	Banking Regulation Community Bank Leverage Ratio BankingRegulationCommunityBankLeverageRatio	0.09
CY2022	fgbi	Percentage Of Outstanding Capital Stock Maximum PercentageOfOutstandingCapitalStockMaximum	0.50
CY2022	us-gaap	Undistributed Earnings UndistributedEarnings	10300000	usd
CY2021Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	93270000	usd
CY2020Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	79399000	usd
CY2022	us-gaap	Increase Decrease In Notes Receivable Related Parties IncreaseDecreaseInNotesReceivableRelatedParties	-3535000	usd
CY2021	us-gaap	Increase Decrease In Notes Receivable Related Parties IncreaseDecreaseInNotesReceivableRelatedParties	13871000	usd
CY2022Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	89735000	usd
CY2021Q4	us-gaap	Notes Receivable Related Parties NotesReceivableRelatedParties	93270000	usd
CY2022	fgbi	Amortization Of Core Deposits AmortizationOfCoreDeposits	696000	usd
CY2021	fgbi	Amortization Of Core Deposits AmortizationOfCoreDeposits	764000	usd
CY2022	fgbi	Donations Donations	638000	usd
CY2022	fgbi	Defined Contribution Plan Minimum Annual Contributions Per Employee Percent DefinedContributionPlanMinimumAnnualContributionsPerEmployeePercent	0.01
CY2022	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.06
CY2022	fgbi	Defined Contribution Plan Maximum Matching Percentage DefinedContributionPlanMaximumMatchingPercentage	1
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	440000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	396000	usd
CY2021	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	0	usd
CY2022	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	0	usd
CY2022Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1003	shares
CY2022	us-gaap	Legal Fees LegalFees	4159000	usd
CY2021	us-gaap	Legal Fees LegalFees	3375000	usd
CY2022	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1596000	usd
CY2021	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	1794000	usd
CY2022	fgbi	Automated Teller Machine Fees AutomatedTellerMachineFees	1750000	usd
CY2021	fgbi	Automated Teller Machine Fees AutomatedTellerMachineFees	1760000	usd
CY2022	us-gaap	Marketing Expense MarketingExpense	1747000	usd
CY2021	us-gaap	Marketing Expense MarketingExpense	1711000	usd
CY2022	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1949000	usd
CY2021	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	1755000	usd
CY2022	us-gaap	Supplies Expense SuppliesExpense	728000	usd
CY2021	us-gaap	Supplies Expense SuppliesExpense	853000	usd
CY2022	fgbi	Software Expense And Amortization SoftwareExpenseAndAmortization	4191000	usd
CY2021	fgbi	Software Expense And Amortization SoftwareExpenseAndAmortization	3071000	usd
CY2022	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	1236000	usd
CY2021	us-gaap	Travel And Entertainment Expense TravelAndEntertainmentExpense	826000	usd
CY2022	fgbi	Telephone Expense TelephoneExpense	406000	usd
CY2021	fgbi	Telephone Expense TelephoneExpense	398000	usd
CY2021	fgbi	Donations Donations	564000	usd
CY2022	fgbi	Net Costs From Other Real Estate And Repossessions NetCostsFromOtherRealEstateAndRepossessions	393000	usd
CY2021	fgbi	Net Costs From Other Real Estate And Repossessions NetCostsFromOtherRealEstateAndRepossessions	801000	usd
CY2022	fgbi	Regulatory Assessment RegulatoryAssessment	1997000	usd
CY2021	fgbi	Regulatory Assessment RegulatoryAssessment	1945000	usd
CY2022	fgbi	Non Interest Expense Other NonInterestExpenseOther	3888000	usd
CY2021	fgbi	Non Interest Expense Other NonInterestExpenseOther	3391000	usd
CY2022	us-gaap	Other Noninterest Expense OtherNoninterestExpense	25374000	usd
CY2021	us-gaap	Other Noninterest Expense OtherNoninterestExpense	23008000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	1000000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	1000000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7761000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7970000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-255000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-812000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7506000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7158000	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7642000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7236000	usd
CY2022	fgbi	Income Tax Reconciliation Tax Exempt Income Municipal Income IncomeTaxReconciliationTaxExemptIncomeMunicipalIncome	108000	usd
CY2021	fgbi	Income Tax Reconciliation Tax Exempt Income Municipal Income IncomeTaxReconciliationTaxExemptIncomeMunicipalIncome	81000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-28000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	3000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7506000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7158000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	4939000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	4817000	usd
CY2022Q4	fgbi	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	5000	usd
CY2021Q4	fgbi	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	219000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	711000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	331000	usd
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CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1098000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	648000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	781000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	7309000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	7246000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2116000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1917000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	914000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	1059000	usd
CY2022Q4	fgbi	Deferred Tax Liabilities Unrealized Gains On Availablefor Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableforSaleSecurities	0	usd
CY2021Q4	fgbi	Deferred Tax Liabilities Unrealized Gains On Availablefor Sale Securities DeferredTaxLiabilitiesUnrealizedGainsOnAvailableforSaleSecurities	0	usd
CY2022Q4	fgbi	Deferred Tax Liabilities Discount On Purchased Loans DeferredTaxLiabilitiesDiscountOnPurchasedLoans	60000	usd
CY2021Q4	fgbi	Deferred Tax Liabilities Discount On Purchased Loans DeferredTaxLiabilitiesDiscountOnPurchasedLoans	164000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	880000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	687000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3970000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3827000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3339000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3419000	usd
CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	4800000	usd
CY2021Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	5200000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2022	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	0	usd
CY2021	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesExpense	0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	usd
CY2021Q4	us-gaap	Income Tax Examination Penalties Accrued IncomeTaxExaminationPenaltiesAccrued	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	usd
CY2022Q4	us-gaap	Income Tax Examination Penalties Accrued IncomeTaxExaminationPenaltiesAccrued	0	usd
CY2022	fgbi	Extension Period Of Majority Of Short Term Borrowing ExtensionPeriodOfMajorityOfShortTermBorrowing	P1Y
CY2022	fgbi	Maximum Extension Period Of Short Term Borrowing MaximumExtensionPeriodOfShortTermBorrowing	P3Y
CY2021	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	usd
CY2022	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	12305000	usd
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	26189000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-676000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	-195000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	-527000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases Sales Issuances Settlements FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchasesSalesIssuancesSettlements	-8845000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	0	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	-4844000	usd
CY2022Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	11102000	usd
CY2021Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	12305000	usd
CY2022Q4	fgbi	Percentage Of Entity Deposits PercentageOfEntityDeposits	0.409
CY2022	fgbi	Number Of Deposits Of Depositing Authorities NumberOfDepositsOfDepositingAuthorities	1	deposit
CY2022Q4	fgbi	Public Fund Deposits PublicFundDeposits	1100000000	usd
CY2021	dei	Auditor Firm AuditorFirmId	447
CY2022	dei	Auditor Firm AuditorFirmId	6982

Files In Submission

Name	View Source	Status
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$FGBI
First Guaranty Bancshares Inc Stock $fgbi

2023 Q1 Form 10-K Financial Statement

#000140853423000018 Filed on March 16, 2023

Income Statement

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Facts In Submission

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$FGBI First Guaranty Bancshares Inc Stock $fgbi

2023 Q1 Form 10-K Financial Statement

#000140853423000018 Filed on March 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$FGBI
First Guaranty Bancshares Inc Stock $fgbi