$GNTY
GUARANTY BANCSHARES INC /TX/ Stock $gnty

$gnty Overview Financials Valuation SEC Filings Company Website

2019 Form 10-K Financial Statement

#000156459020010657 Filed on March 13, 2020

Income Statement

Concept	2019	2018 Q4	2018
Revenue
YoY Change
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$676.0K		$649.0K
YoY Change	4.16%		23.38%
% of Gross Profit
Depreciation & Amortization	$3.886M	$1.290M	$3.400M
YoY Change	14.29%	26.47%	7.53%
% of Gross Profit
Operating Expenses	$676.0K		$649.0K
YoY Change	4.16%		23.38%
Operating Profit
YoY Change
Interest Expense	$23.69M		$19.54M
YoY Change	21.23%		60.81%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$32.06M	$7.990M	$25.20M
YoY Change	27.24%	24.84%	11.1%
Income Tax	$5.778M	$1.480M	$4.599M
% Of Pretax Income	18.02%	18.52%	18.25%
Net Earnings	$26.28M	$6.510M	$20.60M
YoY Change	27.59%	131.67%	42.64%
Net Earnings / Revenue
Basic Earnings Per Share	$2.05		$1.78
Diluted Earnings Per Share	$2.05	$495.1K	$1.77
COMMON SHARES
Basic Shares Outstanding	12.80M	11.89M shares	11.56M
Diluted Shares Outstanding	12.88M		11.65M

Balance Sheet

Concept	2019	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$71.51M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$65.00M	$52.23M	$52.20M
YoY Change	24.52%	19.19%	19.18%
Goodwill		$32.16M
YoY Change		71.59%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets		$3.200M	$3.200M
YoY Change		28.0%	28.0%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.318B	$2.267B	$2.267B
YoY Change	2.27%	15.51%	15.51%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$11.40M	$10.70M	$10.70M
YoY Change	6.54%	50.7%	50.7%
Accrued Expenses	$11.70M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$11.10M	$12.20M	$12.20M
YoY Change	-9.02%	-5.43%	-5.43%
Long-Term Debt Due	$500.0K		$2.000M
YoY Change	-75.0%		100.0%
Total Short-Term Liabilities	$23.60M	$10.70M	$12.70M
YoY Change	85.83%	50.7%	56.79%
LONG-TERM LIABILITIES
Long-Term Debt	$10.30M	$12.80M	$10.80M
YoY Change	-4.63%	-7.25%	-15.63%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$10.30M	$12.80M	$10.80M
YoY Change	-4.63%	-7.25%	-15.63%
TOTAL LIABILITIES
Total Short-Term Liabilities	$23.60M	$10.70M	$12.70M
Total Long-Term Liabilities	$10.30M	$12.80M	$10.80M
Total Liabilities	$2.057B	$2.022B	$2.022B
YoY Change	1.71%	15.22%	15.22%
SHAREHOLDERS EQUITY
Retained Earnings		$80.09M
YoY Change		21.28%
Common Stock		$198.0M
YoY Change		1561.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$24.35M
YoY Change		21.23%
Treasury Stock Shares		$1.006M
Shareholders Equity	$261.6M	$244.6M	$244.6M
YoY Change
Total Liabilities & Shareholders Equity	$2.318B	$2.267B	$2.267B
YoY Change	2.27%	15.51%	15.51%

Cashflow Statement

Concept	2019	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	$26.28M	$6.510M	$20.60M
YoY Change	27.59%	131.67%	42.64%
Depreciation, Depletion And Amortization	$3.886M	$1.290M	$3.400M
YoY Change	14.29%	26.47%	7.53%
Cash From Operating Activities	$32.05M	$6.250M	$28.21M
YoY Change	13.58%	-3.1%	-4.9%
INVESTING ACTIVITIES
Capital Expenditures	$5.090M	$90.00K	$2.833M
YoY Change	79.67%	-114.06%	22.11%
Acquisitions
YoY Change
Other Investing Activities	-$12.65M	-$4.060M	-$105.9M
YoY Change	-88.05%	-91.34%	-41.65%
Cash From Investing Activities	-$17.74M	-$3.960M	-$108.7M
YoY Change	-83.68%	-91.66%	-40.84%
FINANCING ACTIVITIES
Cash Dividend Paid	$8.065M		$7.031M
YoY Change	14.71%		26.41%
Common Stock Issuance & Retirement, Net	$10.14M		$4.265M
YoY Change	137.75%		-107.65%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	4.898M	15.17M	60.60M
YoY Change	-91.92%	-59.46%	-48.65%
NET CHANGE
Cash From Operating Activities	32.05M	6.250M	28.21M
Cash From Investing Activities	-17.74M	-3.960M	-108.7M
Cash From Financing Activities	4.898M	15.17M	60.60M
Net Change In Cash	19.20M	17.46M	-19.92M
YoY Change	-196.42%	-580.99%	-44.85%
FREE CASH FLOW
Cash From Operating Activities	$32.05M	$6.250M	$28.21M
Capital Expenditures	$5.090M	$90.00K	$2.833M
Free Cash Flow	$26.96M	$6.160M	$25.38M
YoY Change	6.21%	-13.12%	-7.2%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2019	dei	Entity Registrant Name EntityRegistrantName	GUARANTY BANCSHARES INC /TX/
CY2019Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
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CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y11M19D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y7M24D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm	P7Y9M7D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y4M24D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y11M19D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y4M24D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercises In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisesInPeriodWeightedAverageRemainingContractualTerm	P4Y1M9D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeitures In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageRemainingContractualTerm	P8Y7D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y2M26D
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y2M4D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y6M3D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercises In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisesInPeriodWeightedAverageRemainingContractualTerm	P4Y3M29D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageRemainingContractualTerm	P6Y7D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedWeightedAverageRemainingContractualTerm	P8Y9M21D
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm	P7Y3M21D
CY2019	dei	Document Annual Report DocumentAnnualReport	true
CY2019	dei	Document Transition Report DocumentTransitionReport	false
CY2019	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	TX
CY2019	dei	Security12b Title Security12bTitle	Common Stock, par value $1.00 per share
CY2019	dei	Security Exchange Name SecurityExchangeName	NASDAQ
CY2019	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2019	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2019Q2	dei	Entity Public Float EntityPublicFloat	251700000
CY2019	dei	Entity Address Address Line1 EntityAddressAddressLine1	16475 Dallas Parkway, Suite 600
CY2019	dei	Entity File Number EntityFileNumber	001-38087
CY2019	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	75-1656431
CY2019	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2019	dei	Entity Central Index Key EntityCentralIndexKey	0001058867
CY2019	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2019	dei	Entity Small Business EntitySmallBusiness	false
CY2019	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	true
CY2019	dei	Entity Shell Company EntityShellCompany	false
CY2020Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	11332513
CY2019	dei	Entity Address City Or Town EntityAddressCityOrTown	Addison
CY2019	dei	Entity Address State Or Province EntityAddressStateOrProvince	TX
CY2019	dei	City Area Code CityAreaCode	888
CY2017	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm	P7Y10M28D
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y3M25D
CY2019	dei	Entity Ex Transition Period EntityExTransitionPeriod	true
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodWeightedAverageRemainingContractualTerm	P9Y6M3D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageRemainingContractualTerm	P6Y8M8D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedWeightedAverageRemainingContractualTerm	P7Y9M3D
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Remaining Contractual Term SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageRemainingContractualTerm	P7Y9M7D
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	44471000
CY2019	dei	Local Phone Number LocalPhoneNumber	572 - 9881
CY2018Q4	us-gaap	Federal Funds Sold FederalFundsSold	20275000
CY2018Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	6764000
CY2018Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	71510000
CY2019	us-gaap	Interest Income Operating InterestIncomeOperating	102561000
CY2019	us-gaap	Interest Expense Deposits InterestExpenseDeposits	21611000
CY2018	us-gaap	Interest Expense Deposits InterestExpenseDeposits	16941000
CY2019	gnty	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvances	1389000
CY2018	gnty	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvances	1865000
CY2017	gnty	Interest Expense Federal Home Loan Bank And Federal Reserve Bank Advances InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvances	472000
CY2019	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	648000
CY2018	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	687000
CY2017	us-gaap	Interest Expense Subordinated Notes And Debentures InterestExpenseSubordinatedNotesAndDebentures	724000
CY2018	us-gaap	Interest Expense Other InterestExpenseOther	49000
CY2017	us-gaap	Interest Expense Other InterestExpenseOther	352000
CY2017	us-gaap	Interest Expense InterestExpense	12152000
CY2018Q4	us-gaap	Goodwill Goodwill	32160000
CY2018Q4	us-gaap	Other Assets OtherAssets	26645000
CY2018Q4	us-gaap	Assets Assets	2266970000
CY2018Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	489789000
CY2018Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1381691000
CY2018Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	12228000
CY2018Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	10733000
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	232975000
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	163164000
CY2019Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	2368000
CY2018Q4	us-gaap	Loans Receivable Held For Sale Net Not Part Of Disposal Group LoansReceivableHeldForSaleNetNotPartOfDisposalGroup	1795000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1645444000
CY2019Q4	us-gaap	Interest Receivable InterestReceivable	9151000
CY2018Q4	us-gaap	Interest Receivable InterestReceivable	9292000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53431000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52227000
CY2019Q4	us-gaap	Other Real Estate OtherRealEstate	603000
CY2018Q4	us-gaap	Other Real Estate OtherRealEstate	751000
CY2019Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	34495000
CY2018Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	26301000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4706000
CY2019Q4	us-gaap	Goodwill Goodwill	32160000
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CY2019Q4	us-gaap	Assets Assets	2318444000
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	525865000
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1430939000
CY2018Q4	us-gaap	Deposits Deposits	1871480000
CY2019Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	11100000
CY2019Q4	us-gaap	Accrued Liabilities And Other Liabilities AccruedLiabilitiesAndOtherLiabilities	23061000
CY2018Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	115136000
CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	12810000
CY2018Q4	us-gaap	Liabilities Liabilities	2022387000
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	12835000
CY2018Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	185174000
CY2018Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	80088000
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	24352000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9162000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	244583000
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2266970000
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	14799000
CY2017	us-gaap	Occupancy Net OccupancyNet	7400000
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1981000
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	8385000
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	27078000
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	13904000
CY2017	us-gaap	Noninterest Expense NoninterestExpense	48382000
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	22677000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8238000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	14439000
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.41
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.40
CY2017	us-gaap	Net Income Loss NetIncomeLoss	14439000
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-54000
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-80000
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	236000
CY2017	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	124000
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	84000
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5562000
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	207345000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2549000
CY2018	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.60
CY2019	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.70
CY2019	us-gaap	Net Income Loss NetIncomeLoss	26279000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	20596000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	14439000
CY2019	us-gaap	Depreciation Depreciation	3886000
CY2017	us-gaap	Depreciation Depreciation	3162000
CY2019	us-gaap	Adjustment For Amortization AdjustmentForAmortization	1378000
CY2018	us-gaap	Adjustment For Amortization AdjustmentForAmortization	1228000
CY2017	us-gaap	Adjustment For Amortization AdjustmentForAmortization	1033000
CY2018	gnty	Payments For Proceeds From Maturities Repayments And Calls Of Trading Securities Held For Investment PaymentsForProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldForInvestment	-9331000
CY2017	gnty	Payments For Proceeds From Maturities Repayments And Calls Of Trading Securities Held For Investment PaymentsForProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldForInvestment	-9516000
CY2019	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0
CY2018	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	6423000
CY2017	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0
CY2018	gnty	Net Repayments Originations Of Loans NetRepaymentsOriginationsOfLoans	-146531000
CY2017	gnty	Net Repayments Originations Of Loans NetRepaymentsOriginationsOfLoans	-118754000
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5090000
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2320000
CY2019	gnty	Proceeds From Sale Of Property Plant And Equipment Other Real Estate Owned And Other Assets ProceedsFromSaleOfPropertyPlantAndEquipmentOtherRealEstateOwnedAndOtherAssets	653000
CY2018	gnty	Proceeds From Sale Of Property Plant And Equipment Other Real Estate Owned And Other Assets ProceedsFromSaleOfPropertyPlantAndEquipmentOtherRealEstateOwnedAndOtherAssets	3668000
CY2017	gnty	Proceeds From Sale Of Property Plant And Equipment Other Real Estate Owned And Other Assets ProceedsFromSaleOfPropertyPlantAndEquipmentOtherRealEstateOwnedAndOtherAssets	2279000
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-17740000
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-108734000
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-183807000
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	85324000
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	13739000
CY2017	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	99529000
CY2019	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-1128000
CY2018	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	-651000
CY2017	us-gaap	Proceeds From Payments For In Securities Sold Under Agreements To Repurchase ProceedsFromPaymentsForInSecuritiesSoldUnderAgreementsToRepurchase	2020000
CY2019	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	260500000
CY2018	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	391000000
CY2017	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	60000000
CY2017	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	67465000
CY2017	gnty	Write Down Of Other Real Estate And Repossessed Assets WriteDownOfOtherRealEstateAndRepossessedAssets	12000
CY2017	us-gaap	Interest Paid Net InterestPaidNet	12119000
CY2017	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	70017000
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	8065000
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	7031000
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	5562000
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	60602000
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	118023000
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	19204000
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-19918000
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-36115000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	71510000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	91428000
CY2019	us-gaap	Interest Paid Net InterestPaidNet	23700000
CY2018	us-gaap	Interest Paid Net InterestPaidNet	18813000
CY2019	us-gaap	Income Taxes Paid IncomeTaxesPaid	5536000
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	5218000
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	6660000
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2076000
CY2018Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2013000
CY2017Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	1548000
CY2019	gnty	Transfer Of Loans To Repossessed Assets TransferOfLoansToRepossessedAssets	340000
CY2018	gnty	Transfer Of Loans To Repossessed Assets TransferOfLoansToRepossessedAssets	1304000
CY2017	gnty	Transfer Of Loans To Repossessed Assets TransferOfLoansToRepossessedAssets	1775000
CY2019	us-gaap	Stock Issued1 StockIssued1	0
CY2018	us-gaap	Stock Issued1 StockIssued1	29568000
CY2017	us-gaap	Stock Issued1 StockIssued1	0
CY2018	gnty	Gain Loss On Disposition Of Property Plant Equipment Other Real Estate And Other Assets GainLossOnDispositionOfPropertyPlantEquipmentOtherRealEstateAndOtherAssets	133000
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	663000
CY2019	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	75001
CY2019	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3853000
CY2019Q4	us-gaap	Deposits Deposits	1956804000
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	98239000
CY2019Q4	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	55118000
CY2019Q4	us-gaap	Subordinated Debt SubordinatedDebt	10810000
CY2019Q4	us-gaap	Liabilities Liabilities	2056893000
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	0
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	12905000
CY2019Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	186692000
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	34492000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1793000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	261551000
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2318444000
CY2019	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	5916000
CY2017	gnty	Interest Income Federal Funds Sold And Deposits With Financial Institutions InterestIncomeFederalFundsSoldAndDepositsWithFinancialInstitutions	1278000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	26279000
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	39907000
CY2019Q4	us-gaap	Federal Funds Sold FederalFundsSold	45246000
CY2019Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	5561000
CY2019Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	90714000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	212716000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	155458000
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1690794000
CY2019	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	3830000
CY2018	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	3770000
CY2019	gnty	Interest Income Federal Funds Sold And Deposits With Financial Institutions InterestIncomeFederalFundsSoldAndDepositsWithFinancialInstitutions	1835000
CY2018	gnty	Interest Income Federal Funds Sold And Deposits With Financial Institutions InterestIncomeFederalFundsSoldAndDepositsWithFinancialInstitutions	1201000
CY2018	us-gaap	Interest Income Operating InterestIncomeOperating	88458000
CY2017	us-gaap	Interest Income Operating InterestIncomeOperating	71782000
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	10604000
CY2019	us-gaap	Interest Expense Other InterestExpenseOther	43000
CY2019	us-gaap	Interest Expense InterestExpense	23691000
CY2018	us-gaap	Interest Expense InterestExpense	19542000
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	78870000
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	68916000
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	59630000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1250000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2250000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2850000
CY2019	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	77620000
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	66666000
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	56780000
CY2019	gnty	Fees And Commissions1 FeesAndCommissions1	3715000
CY2018	gnty	Fees And Commissions1 FeesAndCommissions1	3600000
CY2017	gnty	Fees And Commissions1 FeesAndCommissions1	3746000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-22000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-50000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	167000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2850000
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2308000
CY2019	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	10419000
CY2018	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	9445000
CY2019	us-gaap	Noninterest Income NoninterestIncome	16962000
CY2018	us-gaap	Noninterest Income NoninterestIncome	15303000
CY2017	us-gaap	Noninterest Income NoninterestIncome	14279000
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	35907000
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	32122000
CY2019	us-gaap	Occupancy Net OccupancyNet	9834000
CY2018	us-gaap	Occupancy Net OccupancyNet	8398000
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	16784000
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	16254000
CY2019	us-gaap	Noninterest Expense NoninterestExpense	62525000
CY2018	us-gaap	Noninterest Expense NoninterestExpense	56774000
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32057000
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	25195000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5778000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4599000
CY2018	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2308000
CY2018	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	592000
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	7031000
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	244583000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	26279000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7369000
CY2019	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	925000
CY2019	us-gaap	Net Income Loss NetIncomeLoss	26279000
CY2018	us-gaap	Net Income Loss NetIncomeLoss	20596000
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.26
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2018	us-gaap	Net Income Loss NetIncomeLoss	20596000
CY2019	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	9474000
CY2018	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-3543000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	18000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	32000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Writedown Of Securities Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForWritedownOfSecuritiesNetOfTax	377000
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-22000
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-50000
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	167000
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	2012000
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-734000
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	7502000
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-2727000
CY2019	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	-133000
CY2018	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	178000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7369000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2549000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	360000
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	33648000
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18047000
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	110253000
CY2017	us-gaap	Net Income Loss NetIncomeLoss	14439000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	360000
CY2017	gnty	Termination Of Esop Put Option TerminationOfESOPPutOption	34300000
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	55755000
CY2017	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	355000
CY2017	gnty	Change In Fair Value Of Unearned Esop Shares ChangeInFairValueOfUnearnedESOPShares	-2639000
CY2017	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.53
CY2018	us-gaap	Net Income Loss NetIncomeLoss	20596000
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	327000
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	4265000
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	29568000
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	10140000
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	663000
CY2019	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	8128000
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	261551000
CY2018	us-gaap	Depreciation Depreciation	3400000
CY2019	gnty	Premium Amortization Net Of Discount Accretion PremiumAmortizationNetOfDiscountAccretion	-3820000
CY2018	gnty	Premium Amortization Net Of Discount Accretion PremiumAmortizationNetOfDiscountAccretion	-4210000
CY2017	gnty	Premium Amortization Net Of Discount Accretion PremiumAmortizationNetOfDiscountAccretion	-4576000
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-22000
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	-50000
CY2017	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	167000
CY2019	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	2850000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	25.11
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2623000
CY2019	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	830000
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0
CY2017	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	1981000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1250000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2250000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2850000
CY2019	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	76011000
CY2018	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	70841000
CY2017	us-gaap	Payments For Origination Of Mortgage Loans Held For Sale PaymentsForOriginationOfMortgageLoansHeldForSale	64817000
CY2019	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	78288000
CY2018	us-gaap	Proceeds From Sale And Collection Of Loans Heldforsale ProceedsFromSaleAndCollectionOfLoansHeldforsale	73250000
CY2019	gnty	Write Down Of Other Real Estate And Repossessed Assets WriteDownOfOtherRealEstateAndRepossessedAssets	343000
CY2018	gnty	Write Down Of Other Real Estate And Repossessed Assets WriteDownOfOtherRealEstateAndRepossessedAssets	407000
CY2019	gnty	Gain Loss On Disposition Of Property Plant Equipment Other Real Estate And Other Assets GainLossOnDispositionOfPropertyPlantEquipmentOtherRealEstateAndOtherAssets	-78000
CY2017	gnty	Gain Loss On Disposition Of Property Plant Equipment Other Real Estate And Other Assets GainLossOnDispositionOfPropertyPlantEquipmentOtherRealEstateAndOtherAssets	906000
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	592000
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	355000
CY2019	gnty	Increase Decrease In Accrued Interest Receivable Net And Other Assets IncreaseDecreaseInAccruedInterestReceivableNetAndOtherAssets	17232000
CY2018	gnty	Increase Decrease In Accrued Interest Receivable Net And Other Assets IncreaseDecreaseInAccruedInterestReceivableNetAndOtherAssets	5887000
CY2017	gnty	Increase Decrease In Accrued Interest Receivable Net And Other Assets IncreaseDecreaseInAccruedInterestReceivableNetAndOtherAssets	-2413000
CY2019	gnty	Increase Decrease In Interest Payable Net And Other Liabilities IncreaseDecreaseInInterestPayableNetAndOtherLiabilities	12132000
CY2018	gnty	Increase Decrease In Interest Payable Net And Other Liabilities IncreaseDecreaseInInterestPayableNetAndOtherLiabilities	2230000
CY2017	gnty	Increase Decrease In Interest Payable Net And Other Liabilities IncreaseDecreaseInInterestPayableNetAndOtherLiabilities	1235000
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	32046000
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	28214000
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	29669000
CY2019	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	706238000
CY2018	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	429762000
CY2017	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	517155000
CY2019	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	3957000
CY2018	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	411796000
CY2017	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	213813000
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	730272000
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	27093000
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	225516000
CY2019	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0
CY2018	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0
CY2017	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	3298000
CY2019	gnty	Payments For Proceeds From Maturities Repayments And Calls Of Trading Securities Held For Investment PaymentsForProceedsFromMaturitiesRepaymentsAndCallsOfTradingSecuritiesHeldForInvestment	-5646000
CY2019	gnty	Net Repayments Originations Of Loans NetRepaymentsOriginationsOfLoans	-46940000
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2833000
CY2019	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	320518000
CY2018	us-gaap	Repayments Of Federal Home Loan Bank Borrowings RepaymentsOfFederalHomeLoanBankBorrowings	331517000
CY2019	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0
CY2018	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	0
CY2017	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	2000000
CY2019	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0
CY2018	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	0
CY2017	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	20286000
CY2019	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	2000000
CY2018	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	1000000
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	5500000
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	10140000
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4265000
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	25.72
CY2017Q4	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedIntrinsicValue	1673000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	101000
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	32.29
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodIntrinsicValue	5000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	88440
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	25.51
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedIntrinsicValue	400000
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	15400
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	30.14
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedIntrinsicValue	96000
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	331560
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	27.74
CY2018Q4	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedIntrinsicValue	975000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	925000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	327000
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	84000
CY2019	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0
CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0
CY2017	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	55755000
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	4898000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	71510000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	91428000
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	127543000
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	90714000
CY2019	gnty	Termination Of Esop Put Option TerminationOfESOPPutOption	0
CY2018	gnty	Termination Of Esop Put Option TerminationOfESOPPutOption	0
CY2017	gnty	Termination Of Esop Put Option TerminationOfESOPPutOption	34300000
CY2019	gnty	Change In Fair Value Of Unearned Esop Shares ChangeInFairValueOfUnearnedESOPShares	0
CY2018	gnty	Change In Fair Value Of Unearned Esop Shares ChangeInFairValueOfUnearnedESOPShares	0
CY2017	gnty	Change In Fair Value Of Unearned Esop Shares ChangeInFairValueOfUnearnedESOPShares	-2639000
CY2019Q4	gnty	Number Of Subsidiaries NumberOfSubsidiaries	6
CY2019	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;color:#000000;font-family:Arial;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="text-decoration:underline;">Use of Estimates</span><span style="color:#000000;">: To prepare financial statements in conformity with accounting principles generally accepted in the United States of America, management makes estimates and assumptions based on available information. These estimates and assumptions affect the amounts reported in the financial statements and the disclosures provided. Actual future results could differ.</span></p>
CY2019Q4	gnty	Number Of Families Secured By Loans Of Real Estate NumberOfFamiliesSecuredByLoansOfRealEstate	4
CY2019	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2019	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1
CY2019	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1
CY2019	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;color:#000000;font-family:Arial;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><span style="text-decoration:underline;">Reclassification</span><span style="color:#000000;">: Certain amounts in prior period financial statements have been reclassified to conform to current period presentation. These reclassifications are immaterial and have no effect on net income, total assets or stockholders' equity.</span></p>
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	210212000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	2864000
CY2019Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	360000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	212716000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	155458000
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	5018000
CY2019Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	16000
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	160460000
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	239945000
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	127000
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	7097000
CY2018Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	232975000
CY2018Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	163164000
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1258000
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1622000
CY2018Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	162800000
CY2019Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0
CY2018Q4	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeld	0
CY2019Q4	gnty	Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year SecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	95
CY2019Q4	gnty	Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Lessthan One Year SecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessthanOneYear	75
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	37
CY2019Q4	gnty	Heldto Maturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year HeldtoMaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	58
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	13
CY2019Q4	gnty	Heldto Maturity Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Lessthan One Year HeldtoMaturitySecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsLessthanOneYear	62
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	33000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	20559000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	327000
CY2019Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	44710000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	360000
CY2019Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	65269000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	1000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	1313000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	15000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	7791000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	16000
CY2019Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	9104000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	638000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	29860000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	6459000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	191232000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	7097000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	221092000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	561000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	59442000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1061000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	38828000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	1622000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	98270000
CY2019	gnty	Number Of Securities Held Amount Greater Than Ten Percentage Of Share Holders Equity NumberOfSecuritiesHeldAmountGreaterThanTenPercentageOfShareHoldersEquity	0
CY2019Q4	gnty	Marketable Securities Pledged As Collateral MarketableSecuritiesPledgedAsCollateral	278318000
CY2018Q4	gnty	Marketable Securities Pledged As Collateral MarketableSecuritiesPledgedAsCollateral	259557000
CY2019	gnty	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	3957000
CY2018	gnty	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	411796000
CY2017	gnty	Proceeds From Sale Of Marketable Securities ProceedsFromSaleOfMarketableSecurities	217111000
CY2019	gnty	Marketable Securities Gross Realized Gains MarketableSecuritiesGrossRealizedGains	0
CY2018	gnty	Marketable Securities Gross Realized Gains MarketableSecuritiesGrossRealizedGains	4000
CY2017	gnty	Marketable Securities Gross Realized Gains MarketableSecuritiesGrossRealizedGains	180000
CY2019	gnty	Marketable Securities Gross Realized Losses MarketableSecuritiesGrossRealizedLosses	22000
CY2018	gnty	Marketable Securities Gross Realized Losses MarketableSecuritiesGrossRealizedLosses	54000
CY2017	gnty	Marketable Securities Gross Realized Losses MarketableSecuritiesGrossRealizedLosses	13000
CY2017	gnty	Held To Maturity Number Of Securities Sold HeldToMaturityNumberOfSecuritiesSold	3
CY2019	gnty	Held To Maturity Number Of Securities Sold HeldToMaturityNumberOfSecuritiesSold	0
CY2018	gnty	Held To Maturity Number Of Securities Sold HeldToMaturityNumberOfSecuritiesSold	0
CY2019	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0
CY2018	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	0
CY2017	us-gaap	Proceeds From Sale Of Held To Maturity Securities ProceedsFromSaleOfHeldToMaturitySecurities	3298000
CY2019	gnty	Held To Maturity Securities Sold Security Amortized Cost HeldToMaturitySecuritiesSoldSecurityAmortizedCost	0
CY2018	gnty	Held To Maturity Securities Sold Security Amortized Cost HeldToMaturitySecuritiesSoldSecurityAmortizedCost	0
CY2017	gnty	Held To Maturity Securities Sold Security Amortized Cost HeldToMaturitySecuritiesSoldSecurityAmortizedCost	3140000
CY2019	us-gaap	Held To Maturity Securities Sold Security Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityRealizedGainLoss	0
CY2018	us-gaap	Held To Maturity Securities Sold Security Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityRealizedGainLoss	0
CY2017	us-gaap	Held To Maturity Securities Sold Security Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityRealizedGainLoss	158000
CY2019	gnty	Held To Maturity Securities Sold Security Tax Expense Benefit On Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityTaxExpenseBenefitOnRealizedGainLoss	0
CY2018	gnty	Held To Maturity Securities Sold Security Tax Expense Benefit On Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityTaxExpenseBenefitOnRealizedGainLoss	0
CY2017	gnty	Held To Maturity Securities Sold Security Tax Expense Benefit On Realized Gain Loss HeldToMaturitySecuritiesSoldSecurityTaxExpenseBenefitOnRealizedGainLoss	44000
CY2017	gnty	Held To Maturity Securities Sold Security Amortized Cost Other Than Temporary Impairment HeldToMaturitySecuritiesSoldSecurityAmortizedCostOtherThanTemporaryImpairment	324000
CY2017	gnty	Held To Maturity Securities Sold Security Amortized Cost Principal Write Downs HeldToMaturitySecuritiesSoldSecurityAmortizedCostPrincipalWriteDowns	499000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCostBasis	1015000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Next Rolling Twelve Months Fair Value AvailableForSaleSecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	1019000
CY2019Q4	us-gaap	Heldtomaturity Securities Debt Maturities Next Rolling Twelve Months Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsAmortizedCost	2189000
CY2019Q4	us-gaap	Held To Maturity Securities Debt Maturities Next Rolling Twelve Months Fair Value HeldToMaturitySecuritiesDebtMaturitiesNextRollingTwelveMonthsFairValue	2200000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCostBasis	13407000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Two Through Five Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	13772000
CY2019Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Two Through Five Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveAmortizedCost	30221000
CY2019Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Two Through Five Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearTwoThroughFiveFairValue	31179000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCostBasis	13324000
CY2018Q4	gnty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0450
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenFairValue	8892000
CY2019Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling After Ten Years Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingAfterTenYearsAmortizedCost	73235000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling Year Six Through Ten Fair Value AvailableForSaleSecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	13924000
CY2019Q4	us-gaap	Heldtomaturity Securities Debt Maturities Rolling Year Six Through Ten Amortized Cost HeldtomaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenAmortizedCost	32771000
CY2019Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling Year Six Through Ten Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingYearSixThroughTenFairValue	34078000
CY2019Q4	us-gaap	Available For Sale Securities Debt Maturities Rolling After Year Ten Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesRollingAfterYearTenAmortizedCostBasis	8701000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1706395000
CY2019Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	21677000
CY2019Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1684718000
CY2019Q4	us-gaap	Held To Maturity Securities Debt Maturities Rolling After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesRollingAfterTenYearsFairValue	75666000
CY2019Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	210212000
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	212716000
CY2019Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	155458000
CY2019Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	160460000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1659535000
CY2019Q4	gnty	Loans And Leases Receivable Deferred Costs LoansAndLeasesReceivableDeferredCosts	601000
CY2018Q4	gnty	Loans And Leases Receivable Deferred Costs LoansAndLeasesReceivableDeferredCosts	560000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	16202000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14651000
CY2019Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1690794000
CY2018Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	1645444000
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	33663000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	56199000
CY2019Q4	gnty	Loan And Lease Receivable Unfunded Commitment Related Parties LoanAndLeaseReceivableUnfundedCommitmentRelatedParties	13846000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	56199000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	46419000
CY2019	gnty	Loans And Leases Receivable Related Parties Effect Of Changes In Composition LoansAndLeasesReceivableRelatedPartiesEffectOfChangesInComposition	-17516000
CY2019	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	51439000
CY2019Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	33663000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14651000
CY2019	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	1250000
CY2019	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	453000
CY2019	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	754000
CY2019Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	16202000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1649000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	14553000
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	16202000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1706395000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	12859000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2250000
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	918000
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	460000
CY2018Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14651000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	493000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	14158000
CY2018Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	14651000
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	11356000
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1648179000
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6127000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1659535000
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	11484000
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	2850000
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	6340000
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1353204000
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1359544000
CY2019	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	1680000
CY2017	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	2458000
CY2017	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	983000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	12859000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	134000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	12725000
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12859000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1706395000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1659535000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	8296000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1698099000
CY2019Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1706395000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	14986000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	1644549000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	1659535000
CY2019Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	11262000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	5891000
CY2019	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	637000
CY2018	us-gaap	Loans And Leases Receivable Impaired Interest Lost On Nonaccrual Loans LoansAndLeasesReceivableImpairedInterestLostOnNonaccrualLoans	333000
CY2019Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	7341000
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	1196000
CY2019Q4	gnty	Specific Reserves On Troubled Debt Restructuring SpecificReservesOnTroubledDebtRestructuring	164000
CY2018Q4	gnty	Specific Reserves On Troubled Debt Restructuring SpecificReservesOnTroubledDebtRestructuring	0
CY2019	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4
CY2019	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	1515000
CY2019	gnty	Financing Receivables Impaired Troubled Debt Restructuring Increase In Allowance For Loan Losses FinancingReceivablesImpairedTroubledDebtRestructuringIncreaseInAllowanceForLoanLosses	0
CY2019	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0
CY2018	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	4
CY2018	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	582000
CY2018	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	582000
CY2018	gnty	Financing Receivables Impaired Troubled Debt Restructuring Increase In Allowance For Loan Losses FinancingReceivablesImpairedTroubledDebtRestructuringIncreaseInAllowanceForLoanLosses	0
CY2019	gnty	Financing Receivables Impaired Troubled Debt Restructuring Increase In Allowance For Loan Losses FinancingReceivablesImpairedTroubledDebtRestructuringIncreaseInAllowanceForLoanLosses	0
CY2018	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0
CY2019	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	0
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	8673000
CY2019Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	8673000
CY2019	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	7803000
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	13004000
CY2019Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	13004000
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1649000
CY2019	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	9385000
CY2019Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	21677000
CY2019Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	21677000
CY2019Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1649000
CY2019	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	17188000
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance	8356000
CY2018Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	8356000
CY2018	us-gaap	Impaired Financing Receivable With No Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceAverageRecordedInvestment	8202000
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Unpaid Principal Balance ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance	3000000
CY2018Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	3000000
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	493000
CY2018	us-gaap	Impaired Financing Receivable With Related Allowance Average Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceAverageRecordedInvestment	1348000
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	11356000
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	11356000
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	493000
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	9550000
CY2019Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	84208000
CY2018Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	79515000
CY2019Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	30777000
CY2018Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	27288000
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	53431000
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	52227000
CY2019	us-gaap	Depreciation Depreciation	3886000
CY2018	us-gaap	Depreciation Depreciation	3400000
CY2017	us-gaap	Depreciation Depreciation	3162000
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11653766
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	584000
CY2018Q4	us-gaap	Goodwill Goodwill	32160000
CY2017Q4	us-gaap	Goodwill Goodwill	18742000
CY2019	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0
CY2018	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	13418000
CY2019Q4	us-gaap	Goodwill Goodwill	32160000
CY2018Q4	us-gaap	Goodwill Goodwill	32160000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4706000
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	2724000
CY2019	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	0
CY2018	us-gaap	Finitelived Intangible Assets Acquired1 FinitelivedIntangibleAssetsAcquired1	2700000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	853000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	718000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3853000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	4706000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4678000
CY2018Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	3825000
CY2019	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	853000
CY2018	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	718000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	853000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	687000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	453000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	441000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	424000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	995000
CY2019Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	3853000
CY2019Q4	us-gaap	Subordinated Debt SubordinatedDebt	10810000
CY2018Q4	us-gaap	Subordinated Debt SubordinatedDebt	12810000
CY2019Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	202672000
CY2018Q4	us-gaap	Deposits Negotiable Order Of Withdrawal Now DepositsNegotiableOrderOfWithdrawalNOW	252109000
CY2019Q4	gnty	Deposits Savings And Money Market Deposits DepositsSavingsAndMoneyMarketDeposits	712972000
CY2018Q4	gnty	Deposits Savings And Money Market Deposits DepositsSavingsAndMoneyMarketDeposits	694086000
CY2019Q4	gnty	Time Deposits Less Than Twenty Five Thousand TimeDepositsLessThanTwentyFiveThousand	300608000
CY2018Q4	gnty	Time Deposits Less Than Twenty Five Thousand TimeDepositsLessThanTwentyFiveThousand	298724000
CY2019Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	214687000
CY2018Q4	us-gaap	Time Deposits At Or Above Fdic Insurance Limit TimeDepositsAtOrAboveFDICInsuranceLimit	136772000
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1430939000
CY2018Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	1381691000
CY2019Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	440588000
CY2019Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	39575000
CY2019Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	16721000
CY2019Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	12909000
CY2019Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	5502000
CY2019Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	0
CY2019Q4	us-gaap	Time Deposits TimeDeposits	515295000
CY2019Q4	us-gaap	Preferred Stock Liquidation Preference PreferredStockLiquidationPreference	1000000
CY2019Q4	us-gaap	Long Term Debt Term LongTermDebtTerm	P30Y
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	537872
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.49
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2088000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	39000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	29.89
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodIntrinsicValue	117000
CY2019	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	37672
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	24.55
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	314000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	31200
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	30.04
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedInPeriodIntrinsicValue	89000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	508000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.68
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	3159000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	256880
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	25.21
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1971000
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	469044
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	101000
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	32.29
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodIntrinsicValue	5000
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	14372
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	22.74
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	102000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	17800
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	26.07
CY2018	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedInPeriodIntrinsicValue	96000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	537872
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	26.49
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	2088000
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	206312
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	24.48
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	1113000
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	331560
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	27.74
CY2018Q4	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedIntrinsicValue	975000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	39000
CY2019	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	29.89
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted In Period Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedInPeriodIntrinsicValue	117000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	91040
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	26.71
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedIntrinsicValue	563000
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	28400
CY2019	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	33.00
CY2019	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Forfeited Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsForfeitedIntrinsicValue	89000
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	251120
CY2019Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	28.18
CY2019Q4	gnty	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Intrinsic Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedIntrinsicValue	1188000
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	334400
CY2019Q4	gnty	Employee Stock Ownership Plan Esop Number Of Unallocated Shares EmployeeStockOwnershipPlanESOPNumberOfUnallocatedShares	0
CY2018Q4	gnty	Employee Stock Ownership Plan Esop Number Of Unallocated Shares EmployeeStockOwnershipPlanESOPNumberOfUnallocatedShares	0
CY2019	gnty	Compensation Bonus CompensationBonus	3265000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	314000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	102000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	132000
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	925000
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	327000
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	84000
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	16.07
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	6.69
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.91
CY2019Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions	2069000
CY2019	us-gaap	Defined Contribution Plan Employer Matching Contribution Percent DefinedContributionPlanEmployerMatchingContributionPercent	0.05
CY2019	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1270000
CY2018	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	1125000
CY2017	us-gaap	Employee Stock Ownership Plan Esop Compensation Expense EmployeeStockOwnershipPlanESOPCompensationExpense	965000
CY2019Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1224697
CY2018Q4	us-gaap	Employee Stock Ownership Plan Esop Shares In Esop EmployeeStockOwnershipPlanESOPSharesInESOP	1333504
CY2018	gnty	Compensation Bonus CompensationBonus	2943000
CY2017	gnty	Compensation Bonus CompensationBonus	2316000
CY2019Q4	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P7Y
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11600000
CY2019Q4	gnty	Operating Lease Right Of Use Liabilities OperatingLeaseRightOfUseLiabilities	11700000
CY2019Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P10Y
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11675000
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	11554000
CY2019Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0269
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1622000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1430000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1323000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1314000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	1312000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	6312000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	13313000
CY2019Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1638000
CY2019Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	11675000
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6097000
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5288000
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	5803000
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-319000
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-683000
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	740000
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	0
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	-6000
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	1695000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5778000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4599000
CY2018Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	0
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2353000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8238000
CY2018Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3209000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	6732000
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	5291000
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	7937000
CY2019	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1027000
CY2018	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	968000
CY2017	us-gaap	Income Tax Reconciliation Tax Exempt Income IncomeTaxReconciliationTaxExemptIncome	1560000
CY2019	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	0
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	-6000
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	1695000
CY2019	gnty	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Income Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount	192000
CY2018	gnty	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Income Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount	113000
CY2017	gnty	Effective Income Tax Rate Reconciliation Bank Owned Life Insurance Income Amount EffectiveIncomeTaxRateReconciliationBankOwnedLifeInsuranceIncomeAmount	161000
CY2019	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	462000
CY2018	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	566000
CY2017	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	577000
CY2019	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-197000
CY2018	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-171000
CY2017	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-250000
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5778000
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4599000
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8238000
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2017	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	1695000
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	-6000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3402000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Provision For Loan Losses DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsProvisionForLoanLosses	3077000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	857000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	770000
CY2019Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	0
CY2018Q4	us-gaap	Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedLossesOnAvailableforSaleSecuritiesGross	1464000
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	399000
CY2018Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Bonuses DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBonuses	328000
CY2019Q4	gnty	Deferred Tax Assets Accretion Of Acquisition Allowance DeferredTaxAssetsAccretionOfAcquisitionAllowance	183000
CY2018Q4	gnty	Deferred Tax Assets Accretion Of Acquisition Allowance DeferredTaxAssetsAccretionOfAcquisitionAllowance	327000
CY2019Q4	gnty	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	134000
CY2018Q4	gnty	Deferred Tax Assets Other Real Estate Owned DeferredTaxAssetsOtherRealEstateOwned	65000
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	420000
CY2018Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	484000
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	5395000
CY2018Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	6515000
CY2019Q4	us-gaap	Deferred Tax Liabilities Unrealized Gains On Trading Securities DeferredTaxLiabilitiesUnrealizedGainsOnTradingSecurities	526000
CY2018Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2334000
CY2019Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	270000
CY2018Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	179000
CY2019Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	137000
CY2018Q4	us-gaap	Deferred Tax Liabilities Financing Arrangements DeferredTaxLiabilitiesFinancingArrangements	118000
CY2019Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	470000
CY2018Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	590000
CY2019Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	101000
CY2018Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	85000
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3857000
CY2018Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3306000
CY2019Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	1538000
CY2018Q4	gnty	Common Equity Tier One Risk Based Minimum Required Amount To Risk Weighted Assets CommonEquityTierOneRiskBasedMinimumRequiredAmountToRiskWeightedAssets	127768000
CY2018	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	625000
CY2018Q4	gnty	Common Equity Tier One Risk Based Minimum Required To Risk Weighted Assets CommonEquityTierOneRiskBasedMinimumRequiredToRiskWeightedAssets	0.0700
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10313369
CY2019	gnty	Noninterest Income Fiduciary Revenue NoninterestIncomeFiduciaryRevenue	1760000
CY2018	gnty	Noninterest Income Fiduciary Revenue NoninterestIncomeFiduciaryRevenue	1587000
CY2017	gnty	Noninterest Income Fiduciary Revenue NoninterestIncomeFiduciaryRevenue	1463000
CY2019	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	774000
CY2018	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	570000
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	461000
CY2019	gnty	Noninterest Income Merchantand Debit Card Fee Revenue NoninterestIncomeMerchantandDebitCardFeeRevenue	4264000
CY2018	gnty	Noninterest Income Merchantand Debit Card Fee Revenue NoninterestIncomeMerchantandDebitCardFeeRevenue	3642000
CY2017	gnty	Noninterest Income Merchantand Debit Card Fee Revenue NoninterestIncomeMerchantandDebitCardFeeRevenue	3119000
CY2019	gnty	Fee Income Loansand Leases FeeIncomeLoansandLeases	590000
CY2018	gnty	Fee Income Loansand Leases FeeIncomeLoansandLeases	589000
CY2017	gnty	Fee Income Loansand Leases FeeIncomeLoansandLeases	597000
CY2019	us-gaap	Noninterest Income Other NoninterestIncomeOther	3031000
CY2018	us-gaap	Noninterest Income Other NoninterestIncomeOther	3057000
CY2017	us-gaap	Noninterest Income Other NoninterestIncomeOther	2745000
CY2019	us-gaap	Other Operating Income OtherOperatingIncome	10419000
CY2018	us-gaap	Other Operating Income OtherOperatingIncome	9445000
CY2017	us-gaap	Other Operating Income OtherOperatingIncome	8385000
CY2019	us-gaap	Professional Fees ProfessionalFees	2610000
CY2018	us-gaap	Professional Fees ProfessionalFees	3080000
CY2017	us-gaap	Professional Fees ProfessionalFees	2061000
CY2019	gnty	Software Support Fees SoftwareSupportFees	3341000
CY2018	gnty	Software Support Fees SoftwareSupportFees	2502000
CY2017	gnty	Software Support Fees SoftwareSupportFees	2089000
CY2019	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	1378000
CY2018	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	1228000
CY2017	us-gaap	Other Amortization Of Deferred Charges OtherAmortizationOfDeferredCharges	1033000
CY2019	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	873000
CY2018	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	1029000
CY2017	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	1064000
CY2019	us-gaap	Advertising Expense AdvertisingExpense	1655000
CY2018	us-gaap	Advertising Expense AdvertisingExpense	1410000
CY2017	us-gaap	Advertising Expense AdvertisingExpense	1193000
CY2019	us-gaap	Production And Distribution Costs ProductionAndDistributionCosts	1347000
CY2018	us-gaap	Production And Distribution Costs ProductionAndDistributionCosts	1127000
CY2017	us-gaap	Production And Distribution Costs ProductionAndDistributionCosts	899000
CY2019	us-gaap	Supplies Expense SuppliesExpense	470000
CY2018	us-gaap	Supplies Expense SuppliesExpense	416000
CY2017	us-gaap	Supplies Expense SuppliesExpense	426000
CY2019	us-gaap	Postage Expense PostageExpense	302000
CY2018	us-gaap	Postage Expense PostageExpense	310000
CY2017	us-gaap	Postage Expense PostageExpense	301000
CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	676000
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	649000
CY2017	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	526000
CY2019	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	173000
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	671000
CY2019	gnty	Other Real Estate Owned Expenseand Writedowns OtherRealEstateOwnedExpenseandWritedowns	59000
CY2018	gnty	Other Real Estate Owned Expenseand Writedowns OtherRealEstateOwnedExpenseandWritedowns	157000
CY2017	gnty	Other Real Estate Owned Expenseand Writedowns OtherRealEstateOwnedExpenseandWritedowns	128000
CY2019	gnty	Other Noninterest Expense Other OtherNoninterestExpenseOther	3900000
CY2018	gnty	Other Noninterest Expense Other OtherNoninterestExpenseOther	3721000
CY2017	gnty	Other Noninterest Expense Other OtherNoninterestExpenseOther	3513000
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16784000
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	16254000
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	13904000
CY2019	us-gaap	Gain Loss On Cash Flow Hedge Ineffectiveness Net GainLossOnCashFlowHedgeIneffectivenessNet	0
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	90940
CY2019	gnty	Cash Flow Hedge Gain Loss To Be Reclassified Within Remainder Of Fiscal Year CashFlowHedgeGainLossToBeReclassifiedWithinRemainderOfFiscalYear	0
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.41
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.25
CY2018Q4	us-gaap	Excess Tier One Leverage Capital ExcessTierOneLeverageCapital	89422000
CY2018Q4	us-gaap	Excess Tier One Leverage Capital To Average Assets ExcessTierOneLeverageCapitalToAverageAssets	0.0400
CY2018Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	216830000
CY2018Q4	us-gaap	Excess Capital ExcessCapital	191651000
CY2018Q4	us-gaap	Excess Capital To Risk Weighted Assets ExcessCapitalToRiskWeightedAssets	0.1050
CY2017	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	108000
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	360000
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.77
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6127000
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.40
CY2019Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	2000000
CY2016Q4	gnty	Annual Increase In Capital Conservation Buffer Percentage AnnualIncreaseInCapitalConservationBufferPercentage	0.00625
CY2017Q4	gnty	Annual Increase In Capital Conservation Buffer Percentage AnnualIncreaseInCapitalConservationBufferPercentage	0.00625
CY2018Q4	gnty	Annual Increase In Capital Conservation Buffer Percentage AnnualIncreaseInCapitalConservationBufferPercentage	0.00625
CY2019Q4	us-gaap	Capital Capital	253793000
CY2019Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1329
CY2019Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	152770000
CY2019Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2019Q4	us-gaap	Excess Capital ExcessCapital	200510000
CY2019Q4	us-gaap	Excess Capital To Risk Weighted Assets ExcessCapitalToRiskWeightedAssets	0.1050
CY2019Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	237591000
CY2019Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1244
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	114577000
CY2019Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2019Q4	us-gaap	Excess Tier One Risk Based Capital ExcessTierOneRiskBasedCapital	162318000
CY2019Q4	us-gaap	Excess Tier One Risk Based Capital To Risk Weighted Assets ExcessTierOneRiskBasedCapitalToRiskWeightedAssets	0.0850
CY2019Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	237591000
CY2019Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1029
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	92318000
CY2019Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2019Q4	us-gaap	Excess Tier One Leverage Capital ExcessTierOneLeverageCapital	92318000
CY2019Q4	us-gaap	Excess Tier One Leverage Capital To Average Assets ExcessTierOneLeverageCapitalToAverageAssets	0.0400
CY2019Q4	us-gaap	Common Equity Tier One Capital CommonEquityTierOneCapital	227281000
CY2019Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1190
CY2019Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	85933000
CY2019Q4	gnty	Common Equity Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0450
CY2019Q4	gnty	Common Equity Tier One Risk Based Minimum Required Amount To Risk Weighted Assets CommonEquityTierOneRiskBasedMinimumRequiredAmountToRiskWeightedAssets	133674000
CY2019Q4	gnty	Common Equity Tier One Risk Based Minimum Required To Risk Weighted Assets CommonEquityTierOneRiskBasedMinimumRequiredToRiskWeightedAssets	0.0700
CY2018Q4	us-gaap	Capital Capital	241791000
CY2018Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1325
CY2018Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	146020000
CY2018Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0800
CY2018Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	227140000
CY2018Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1244
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	109515000
CY2018Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.0600
CY2018Q4	us-gaap	Excess Tier One Risk Based Capital ExcessTierOneRiskBasedCapital	155146000
CY2018Q4	us-gaap	Excess Tier One Risk Based Capital To Risk Weighted Assets ExcessTierOneRiskBasedCapitalToRiskWeightedAssets	0.0850
CY2018Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	227140000
CY2018Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1016
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	89422000
CY2018Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.0400
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26279000
CY2018Q4	us-gaap	Common Equity Tier One Capital Ratio CommonEquityTierOneCapitalRatio	0.1188
CY2018Q4	us-gaap	Common Equity Tier One Capital Required For Capital Adequacy CommonEquityTierOneCapitalRequiredForCapitalAdequacy	82136000
CY2018	us-gaap	Tax Cuts And Jobs Act Of2017 Reclassification From Aoci To Retained Earnings Tax Effect TaxCutsAndJobsActOf2017ReclassificationFromAociToRetainedEarningsTaxEffect	-486000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9162000
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6487000
CY2017	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	468000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	20596000
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	14439000
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	26279000
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	20596000
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	66202
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	14439000
CY2019Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Mortgage Related Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedMortgageRelatedSecuritiesAvailableForSaleOrHeldForInvestment	11100000
CY2018Q4	us-gaap	Pledged Financial Instruments Not Separately Reported Mortgage Related Securities Available For Sale Or Held For Investment PledgedFinancialInstrumentsNotSeparatelyReportedMortgageRelatedSecuritiesAvailableForSaleOrHeldForInvestment	12228000
CY2019Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	2368000
CY2019Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	34495000
CY2019Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	672000
CY2019Q4	us-gaap	Derivative Assets DerivativeAssets	526000
CY2019Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	526000
CY2018Q4	us-gaap	Loans Held For Sale Fair Value Disclosure LoansHeldForSaleFairValueDisclosure	1795000
CY2018Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	26301000
CY2018Q4	us-gaap	Servicing Asset At Fair Value Amount ServicingAssetAtFairValueAmount	1107000
CY2018Q4	us-gaap	Derivative Assets DerivativeAssets	392000
CY2018Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	392000
CY2018Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-9162000
CY2019	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	7352000
CY2019	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-17000
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7369000
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1793000
CY2018	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-2589000
CY2018	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-40000
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2549000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11638897
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	11562826
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10230840
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.26
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.78
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	82529
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	11705099

Files In Submission

Name	View Source	Status
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0001564590-20-010657-index.html	Edgar Link	pending
0001564590-20-010657.txt	Edgar Link	pending
0001564590-20-010657-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
garoq25h2aet000001.jpg	Edgar Link	pending
garoq25h2aet000002.jpg	Edgar Link	pending
gnty-10k_20191231.htm	Edgar Link	pending
gnty-10k_20191231_htm.xml	Edgar Link	completed
gnty-20191231.xsd	Edgar Link	pending
gnty-20191231_cal.xml	Edgar Link	unprocessable
gnty-20191231_def.xml	Edgar Link	unprocessable
gnty-20191231_lab.xml	Edgar Link	unprocessable
gnty-20191231_pre.xml	Edgar Link	unprocessable
gnty-ex211_9.htm	Edgar Link	pending
gnty-ex231_7.htm	Edgar Link	pending
gnty-ex311_12.htm	Edgar Link	pending
gnty-ex312_15.htm	Edgar Link	pending
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$GNTY
GUARANTY BANCSHARES INC /TX/ Stock $gnty

2019 Form 10-K Financial Statement

#000156459020010657 Filed on March 13, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GNTY GUARANTY BANCSHARES INC /TX/ Stock $gnty

2019 Form 10-K Financial Statement

#000156459020010657 Filed on March 13, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GNTY
GUARANTY BANCSHARES INC /TX/ Stock $gnty