false12-312024FY0000357301NYNYhttp://fasb.org/us-gaap/2024#AccountingStandardsUpdate201613Memberhttp://fasb.org/us-gaap/2024#AccountingStandardsUpdate201613MemberP12MP12M000000http://fasb.org/srt/2024#OfficerMemberhttp://fasb.org/srt/2024#OfficerMember0.1http://fasb.org/us-gaap/2024#MarketApproachValuationTechniqueMemberhttp://fasb.org/us-gaap/2024#MarketApproachValuationTechniqueMemberhttp://fasb.org/us-gaap/2024#MarketApproachValuationTechniqueMemberhttp://fasb.org/us-gaap/2024#MarketApproachValuationTechniqueMemberhttp://fasb.org/us-gaap/2024#MeasurementInputComparabilityAdjustmentMemberhttp://fasb.org/us-gaap/2024#MeasurementInputComparabilityAdjustmentMemberhttp://fasb.org/us-gaap/2024#MeasurementInputComparabilityAdjustmentMemberhttp://fasb.org/us-gaap/2024#MeasurementInputComparabilityAdjustmentMember173202120212024202400003573012024-01-012024-12-3100003573012024-06-3000003573012025-03-0700003573012023-01-012023-12-3100003573012022-01-012022-12-3100003573012023-12-3100003573012024-12-310000357301us-gaap:TreasuryStockCommonMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-12-310000357301srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2022-12-310000357301us-gaap:RetainedEarningsMember2021-12-310000357301srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMemberus-gaap:CommonStockMember2022-12-310000357301srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2022-12-3100003573012021-12-310000357301us-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-12-310000357301srt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-12-310000357301us-gaap:TreasuryStockCommonMember2021-12-310000357301us-gaap:CommonStockMember2021-12-310000357301us-gaap:AdditionalPaidInCapitalMember2021-12-310000357301us-gaap:AdditionalPaidInCapitalMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-12-310000357301srt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:RetainedEarningsMember2022-01-012022-12-310000357301us-gaap:RetainedEarningsMembersrt:CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember2022-01-012022-12-310000357301us-gaap:RetainedEarningsMember2022-01-012022-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000357301us-gaap:CommonStockMember2024-01-012024-12-310000357301us-gaap:CommonStockMember2023-01-012023-12-310000357301us-gaap:CommonStockMember2022-01-012022-12-310000357301us-gaap:RetainedEarningsMember2023-01-012023-12-310000357301us-gaap:TreasuryStockCommonMember2023-01-012023-12-310000357301us-gaap:TreasuryStockCommonMember2022-01-012022-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000357301us-gaap:AdditionalPaidInCapitalMember2022-01-012022-12-310000357301us-gaap:TreasuryStockCommonMember2024-01-012024-12-310000357301us-gaap:RetainedEarningsMember2024-01-012024-12-310000357301us-gaap:AdditionalPaidInCapitalMember2023-01-012023-12-310000357301us-gaap:AdditionalPaidInCapitalMember2024-01-012024-12-310000357301us-gaap:CommonStockMember2023-12-310000357301us-gaap:CommonStockMember2024-12-310000357301us-gaap:TreasuryStockCommonMember2024-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2023-12-310000357301us-gaap:TreasuryStockCommonMember2022-12-310000357301us-gaap:RetainedEarningsMember2024-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2022-12-3100003573012022-12-310000357301us-gaap:CommonStockMember2022-12-310000357301us-gaap:RetainedEarningsMember2023-12-310000357301us-gaap:RetainedEarningsMember2022-12-310000357301us-gaap:TreasuryStockCommonMember2023-12-310000357301us-gaap:AdditionalPaidInCapitalMember2023-12-310000357301us-gaap:AccumulatedOtherComprehensiveIncomeMember2024-12-310000357301us-gaap:AdditionalPaidInCapitalMember2024-12-310000357301us-gaap:AdditionalPaidInCapitalMember2022-12-3100003573012024-10-012024-12-310000357301us-gaap:HeldtomaturitySecuritiesMember2024-01-012024-12-310000357301us-gaap:AvailableforsaleSecuritiesMember2024-01-012024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-01-012024-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2024-01-012024-12-310000357301us-gaap:RestrictedStockUnitsRSUMember2024-01-012024-12-310000357301trst:LiabilityAwardsMemberus-gaap:RestrictedStockUnitsRSUMember2024-01-012024-12-310000357301trst:LiabilityAwardsMemberus-gaap:PerformanceSharesMember2024-01-012024-12-310000357301us-gaap:PerformanceSharesMember2024-01-012024-12-310000357301srt:MaximumMemberus-gaap:OfficeEquipmentMember2024-12-310000357301us-gaap:OfficeEquipmentMembersrt:MinimumMember2024-12-310000357301us-gaap:BuildingMembersrt:MinimumMember2024-12-310000357301srt:MaximumMemberus-gaap:BuildingMember2024-12-310000357301srt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AccountingStandardsUpdate201613Member2022-12-310000357301us-gaap:AccountingStandardsUpdate201613Member2022-12-310000357301srt:ScenarioPreviouslyReportedMember2022-12-310000357301us-gaap:UnfundedLoanCommitmentMemberus-gaap:AccountingStandardsUpdate201613Member2022-12-310000357301srt:ScenarioPreviouslyReportedMemberus-gaap:UnfundedLoanCommitmentMember2022-12-310000357301us-gaap:UnfundedLoanCommitmentMembersrt:RevisionOfPriorPeriodAccountingStandardsUpdateAdjustmentMembersrt:CumulativeEffectPeriodOfAdoptionAdjustmentMemberus-gaap:AccountingStandardsUpdate201613Member2022-12-310000357301us-gaap:ResidentialMortgageBackedSecuritiesMember2023-12-310000357301trst:SmallBusinessAdministrationGuaranteedParticipationSecuritiesMember2024-12-310000357301us-gaap:USStatesAndPoliticalSubdivisionsMember2023-12-310000357301us-gaap:ResidentialMortgageBackedSecuritiesMember2024-12-310000357301us-gaap:OtherDebtSecuritiesMember2024-12-310000357301us-gaap:OtherDebtSecuritiesMember2023-12-310000357301trst:SmallBusinessAdministrationGuaranteedParticipationSecuritiesMember2023-12-310000357301us-gaap:CorporateBondSecuritiesMember2024-12-310000357301us-gaap:USStatesAndPoliticalSubdivisionsMember2024-12-310000357301us-gaap:CorporateBondSecuritiesMember2023-12-310000357301us-gaap:CommercialMortgageBackedSecuritiesMember2023-12-310000357301trst:VisaClassB1CommonStockMember2024-12-310000357301trst:VisaClassCCommonStockMember2024-01-012024-12-310000357301trst:VisaClassB2CommonStockMember2024-12-310000357301trst:VisaClassCCommonStockMember2024-12-310000357301trst:FederalHomeLoanMortgageCorporationMemberus-gaap:StockholdersEquityTotalMember2024-12-310000357301us-gaap:StockholdersEquityTotalMembertrst:FederalNationalMortgageAssociationMember2024-12-310000357301us-gaap:CommercialRealEstateMemberstpr:FLus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMemberstpr:FL2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMember2023-12-310000357301us-gaap:ResidentialMortgageMemberstpr:FLus-gaap:HomeEquityLoanMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:FirstMortgageMemberstpr:FLus-gaap:ResidentialMortgageMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:ConstructionLoansMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2024-12-310000357301us-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2023-12-310000357301trst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMember2023-12-310000357301trst:CommercialBorrowersResidentialPurposesMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMemberstpr:FL2023-12-310000357301stpr:FL2023-12-310000357301us-gaap:ResidentialMortgageMemberstpr:FLus-gaap:HomeEquityLoanMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301trst:PaycheckProtectionProgramLoansMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:HomeEquityMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMember2023-12-310000357301trst:NewYorkAndOtherStatesMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:ResidentialPortfolioSegmentMember2023-12-310000357301us-gaap:ResidentialMortgageMemberstpr:FLus-gaap:HomeEquityMember2023-12-310000357301us-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberstpr:FLtrst:CommercialOtherReceivableMember2024-12-310000357301us-gaap:ResidentialPortfolioSegmentMember2024-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:ConstructionLoansMember2023-12-310000357301trst:CommercialBorrowersResidentialPurposesMember2023-12-310000357301trst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:PaycheckProtectionProgramLoansMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2024-12-310000357301stpr:FLus-gaap:ConsumerLoanMember2024-12-310000357301stpr:FL2024-12-310000357301stpr:FLus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301stpr:FLtrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMember2022-12-310000357301us-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:ResidentialMortgageMember2022-12-310000357301us-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:ConsumerLoanMember2022-12-310000357301trst:NewYorkAndOtherStatesMember2024-01-012024-12-310000357301trst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301stpr:FL2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberstpr:FL2024-01-012024-12-310000357301us-gaap:ConsumerLoanMember2023-01-012023-12-310000357301stpr:FLus-gaap:ConsumerLoanMember2023-01-012023-12-310000357301us-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301stpr:FLus-gaap:CommercialPortfolioSegmentMember2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMember2024-01-012024-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMember2024-01-012024-12-310000357301us-gaap:ConsumerLoanMember2024-01-012024-12-310000357301stpr:FLus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301stpr:FL2024-01-012024-12-310000357301us-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:ConsumerLoanMemberstpr:FL2024-01-012024-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301stpr:FLus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:CommercialPortfolioSegmentMember2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMember2024-01-012024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:UnfundedLoanCommitmentMember2022-12-310000357301us-gaap:UnfundedLoanCommitmentMember2023-12-310000357301us-gaap:UnfundedLoanCommitmentMember2024-01-012024-12-310000357301us-gaap:UnfundedLoanCommitmentMember2023-01-012023-12-310000357301us-gaap:UnfundedLoanCommitmentMember2024-12-310000357301us-gaap:PassMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:SubstandardMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PerformingFinancingReceivableMemberus-gaap:HomeEquityLoanMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:NonperformingFinancingReceivableMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:PassMember2023-12-310000357301us-gaap:SpecialMentionMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:PassMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:PerformingFinancingReceivableMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:NonperformingFinancingReceivableMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:NonperformingFinancingReceivableMember2023-12-310000357301us-gaap:DoubtfulMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:PerformingFinancingReceivableMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:PerformingFinancingReceivableMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:PerformingFinancingReceivableMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMemberus-gaap:NonperformingFinancingReceivableMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:SubstandardMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:PerformingFinancingReceivableMemberus-gaap:ResidentialMortgageMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:SpecialMentionMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:SubstandardMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:SpecialMentionMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:SubstandardMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:NonperformingFinancingReceivableMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:PerformingFinancingReceivableMember2023-12-310000357301us-gaap:PerformingFinancingReceivableMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:PassMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:HomeEquityMemberus-gaap:NonperformingFinancingReceivableMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:NonperformingFinancingReceivableMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:SpecialMentionMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMember2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-01-012024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2024-01-012024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2023-01-012023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-01-012024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2024-01-012024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-01-012023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMemberstpr:FL2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberstpr:FLus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMember2023-12-310000357301stpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-12-310000357301stpr:FLus-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberstpr:FL2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FirstMortgageMemberus-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberstpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2024-12-310000357301stpr:FLus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:HomeEquityLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityLoanMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberstpr:FLus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLtrst:CommercialOtherReceivableMember2023-12-310000357301stpr:FLus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivables30To59DaysPastDueMembertrst:CommercialOtherReceivableMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMembertrst:NewYorkAndOtherStatesMembertrst:CommercialOtherReceivableMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:ConsumerLoanMemberstpr:FLus-gaap:FinancialAssetPastDueMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberstpr:FLtrst:CommercialOtherReceivableMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310000357301stpr:FLus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMemberus-gaap:CommercialRealEstateMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301stpr:FLus-gaap:ConsumerLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:FinancialAssetPastDueMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityMember2023-12-310000357301us-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:CommercialRealEstateMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301stpr:FLus-gaap:ConsumerLoanMemberus-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMember2024-12-310000357301stpr:FLus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMembertrst:CommercialOtherReceivableMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLtrst:CommercialOtherReceivableMember2023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberstpr:FLus-gaap:ResidentialMortgageMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:FinancialAssetPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivables60To89DaysPastDueMembertrst:CommercialOtherReceivableMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberstpr:FL2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMemberstpr:FLus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityLoanMember2023-12-310000357301stpr:FLus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:ConsumerLoanMemberstpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityLoanMemberstpr:FL2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberstpr:FL2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301trst:NewYorkAndOtherStatesMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2023-12-310000357301stpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetPastDueMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMemberstpr:FL2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetNotPastDueMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMemberus-gaap:FinancialAssetPastDueMemberstpr:FL2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:FinancingReceivables30To59DaysPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:FinancialAssetNotPastDueMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberstpr:FL2023-12-310000357301us-gaap:FinancialAssetPastDueMemberstpr:FLus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2024-12-310000357301stpr:FLus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301stpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:HomeEquityMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301stpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMemberstpr:FLus-gaap:HomeEquityMember2023-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:FinancialAssetPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:HomeEquityMember2024-12-310000357301stpr:FLus-gaap:ConsumerLoanMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberstpr:FLus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301stpr:FLus-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:ConsumerLoanMemberstpr:FLus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetPastDueMember2024-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberstpr:FLus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2024-12-310000357301stpr:FLus-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetPastDueMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMemberus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:HomeEquityLoanMemberstpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityLoanMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberstpr:FLus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2023-12-310000357301us-gaap:HomeEquityLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMemberstpr:FLus-gaap:FinancialAssetNotPastDueMember2024-12-310000357301us-gaap:FinancialAssetPastDueMember2023-12-310000357301stpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301stpr:FLus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberstpr:FLus-gaap:HomeEquityMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberstpr:FL2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberstpr:FL2023-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetPastDueMemberus-gaap:HomeEquityMemberstpr:FL2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ConsumerLoanMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetPastDueMemberus-gaap:HomeEquityMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetPastDueMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMembertrst:CommercialOtherReceivableMember2024-12-310000357301us-gaap:ConsumerLoanMemberstpr:FLus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:FinancialAssetNotPastDueMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:FirstMortgageMemberstpr:FLus-gaap:ResidentialMortgageMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:FinancialAssetNotPastDueMemberstpr:FLus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301stpr:FLus-gaap:ConsumerLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301stpr:FLus-gaap:HomeEquityLoanMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:CommercialRealEstateMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301stpr:FLus-gaap:FinancialAssetNotPastDueMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetPastDueMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:HomeEquityLoanMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2024-12-310000357301stpr:FLus-gaap:CommercialRealEstateMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ConsumerLoanMemberus-gaap:FinancialAssetNotPastDueMember2023-12-310000357301us-gaap:ConsumerLoanMemberstpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityMemberus-gaap:FinancialAssetNotPastDueMemberus-gaap:ResidentialMortgageMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberstpr:FL2023-12-310000357301us-gaap:ResidentialMortgageMemberstpr:FLus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:HomeEquityLoanMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2023-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberstpr:FLus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2024-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMembertrst:NewYorkAndOtherStatesMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberstpr:FLus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberstpr:FLus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:FinancialAssetNotPastDueMemberstpr:FL2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetPastDueMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancialAssetPastDueMembertrst:CommercialOtherReceivableMember2024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301stpr:FLus-gaap:FinancialAssetNotPastDueMemberus-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMemberus-gaap:ConsumerLoanMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2024-12-310000357301us-gaap:FinancialAssetPastDueMembertrst:NewYorkAndOtherStatesMember2023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FinancialAssetPastDueMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2023-12-310000357301stpr:FLus-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FinancingReceivablesEqualToGreaterThan90DaysPastDueMember2023-12-310000357301us-gaap:HomeEquityLoanMemberstpr:FLus-gaap:FinancingReceivables60To89DaysPastDueMemberus-gaap:ResidentialMortgageMember2023-12-310000357301stpr:FLus-gaap:FinancialAssetPastDueMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:FinancingReceivables30To59DaysPastDueMember2024-12-310000357301us-gaap:ResidentialRealEstateMember2024-12-310000357301us-gaap:ResidentialRealEstateMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMembertrst:InvestmentSecuritiesCashMember2024-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMembertrst:OtherCollateralLoanMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:RealEstateMember2023-12-310000357301trst:OtherCollateralLoanMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:RealEstateMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:RealEstateMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMembertrst:InvestmentSecuritiesCashMember2024-12-310000357301trst:CommercialOtherReceivableMembertrst:InvestmentSecuritiesCashMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:RealEstateMemberus-gaap:HomeEquityMember2024-12-310000357301trst:OtherCollateralLoanMember2024-12-310000357301us-gaap:HomeEquityMembertrst:InvestmentSecuritiesCashMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMembertrst:OtherCollateralLoanMember2023-12-310000357301trst:InvestmentSecuritiesCashMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:RealEstateMember2023-12-310000357301us-gaap:ConsumerLoanMembertrst:OtherCollateralLoanMember2024-12-310000357301trst:InvestmentSecuritiesCashMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:CommercialRealEstateMembertrst:InvestmentSecuritiesCashMemberus-gaap:CommercialPortfolioSegmentMember2023-12-310000357301us-gaap:RealEstateMemberus-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMembertrst:InvestmentSecuritiesCashMember2024-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:RealEstateMember2023-12-310000357301us-gaap:ResidentialMortgageMembertrst:OtherCollateralLoanMemberus-gaap:HomeEquityLoanMember2024-12-310000357301trst:OtherCollateralLoanMember2023-12-310000357301us-gaap:FirstMortgageMembertrst:OtherCollateralLoanMemberus-gaap:ResidentialMortgageMember2024-12-310000357301trst:InvestmentSecuritiesCashMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMembertrst:InvestmentSecuritiesCashMember2024-12-310000357301us-gaap:ConsumerLoanMembertrst:InvestmentSecuritiesCashMember2023-12-310000357301us-gaap:ConsumerLoanMembertrst:OtherCollateralLoanMember2023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMembertrst:OtherCollateralLoanMember2023-12-310000357301us-gaap:RealEstateMember2024-12-310000357301us-gaap:RealEstateMemberus-gaap:ConsumerLoanMember2024-12-310000357301us-gaap:CommercialPortfolioSegmentMembertrst:OtherCollateralLoanMemberus-gaap:CommercialRealEstateMember2024-12-310000357301us-gaap:RealEstateMemberus-gaap:CommercialRealEstateMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301trst:InvestmentSecuritiesCashMemberus-gaap:ConsumerLoanMember2024-12-310000357301trst:InvestmentSecuritiesCashMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2023-12-310000357301us-gaap:FirstMortgageMemberus-gaap:RealEstateMemberus-gaap:ResidentialMortgageMember2023-12-310000357301trst:InvestmentSecuritiesCashMember2023-12-310000357301trst:OtherCollateralLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMember2023-12-310000357301us-gaap:HomeEquityMembertrst:OtherCollateralLoanMemberus-gaap:ResidentialMortgageMember2024-12-310000357301us-gaap:RealEstateMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:RealEstateMemberus-gaap:FirstMortgageMember2024-12-310000357301us-gaap:RealEstateMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMembertrst:OtherCollateralLoanMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberus-gaap:FirstMortgageMember2023-01-012023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:PaymentDeferralMemberstpr:FLus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:PaymentDeferralMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMember2024-01-012024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301stpr:FLus-gaap:ConsumerLoanMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:PaymentDeferralMemberus-gaap:CommercialPortfolioSegmentMembertrst:CommercialOtherReceivableMemberstpr:FL2023-01-012023-12-310000357301us-gaap:PaymentDeferralMembertrst:NewYorkAndOtherStatesMemberus-gaap:ConsumerLoanMember2023-01-012023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:PaymentDeferralMemberus-gaap:CommercialPortfolioSegmentMembertrst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301us-gaap:PaymentDeferralMembertrst:NewYorkAndOtherStatesMember2024-01-012024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301stpr:FLus-gaap:PaymentDeferralMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMember2023-01-012023-12-310000357301us-gaap:HomeEquityMemberus-gaap:PaymentDeferralMemberstpr:FLus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:PaymentDeferralMemberus-gaap:CommercialRealEstateMemberstpr:FL2024-01-012024-12-310000357301stpr:FLus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:PaymentDeferralMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301stpr:FLtrst:CommercialOtherReceivableMemberus-gaap:PaymentDeferralMemberus-gaap:CommercialPortfolioSegmentMember2024-01-012024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:PaymentDeferralMemberus-gaap:CommercialRealEstateMember2023-01-012023-12-310000357301us-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:PaymentDeferralMembertrst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMember2023-01-012023-12-310000357301us-gaap:PaymentDeferralMemberstpr:FL2024-01-012024-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberstpr:FL2023-01-012023-12-310000357301us-gaap:PaymentDeferralMemberus-gaap:ResidentialMortgageMemberus-gaap:FirstMortgageMemberstpr:FL2024-01-012024-12-310000357301us-gaap:CommercialRealEstateMemberus-gaap:PaymentDeferralMembertrst:NewYorkAndOtherStatesMemberus-gaap:CommercialPortfolioSegmentMember2024-01-012024-12-310000357301us-gaap:HomeEquityLoanMemberus-gaap:PaymentDeferralMemberus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberus-gaap:FirstMortgageMember2024-01-012024-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301us-gaap:ConsumerLoanMembertrst:NewYorkAndOtherStatesMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberstpr:FLus-gaap:FirstMortgageMember2023-01-012023-12-310000357301trst:NewYorkAndOtherStatesMemberus-gaap:PaymentDeferralMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityMember2024-01-012024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberus-gaap:HomeEquityMember2023-01-012023-12-310000357301trst:CommercialOtherReceivableMemberus-gaap:CommercialPortfolioSegmentMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:PaymentDeferralMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMemberus-gaap:HomeEquityLoanMember2024-01-012024-12-310000357301us-gaap:FirstMortgageMemberus-gaap:PaymentDeferralMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301us-gaap:CommercialPortfolioSegmentMemberus-gaap:CommercialRealEstateMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMember2024-01-012024-12-310000357301us-gaap:PaymentDeferralMemberus-gaap:ConsumerLoanMemberstpr:FL2023-01-012023-12-310000357301us-gaap:ConsumerLoanMemberus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:PaymentDeferralMember2023-01-012023-12-310000357301us-gaap:PaymentDeferralMember2023-01-012023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:PaymentDeferralMemberstpr:FLus-gaap:HomeEquityMember2023-01-012023-12-310000357301stpr:FLus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:HomeEquityMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:FirstMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:ResidentialMortgageMember2024-01-012024-12-310000357301us-gaap:HomeEquityMemberus-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMember2023-01-012023-12-310000357301stpr:FLus-gaap:FirstMortgageMemberus-gaap:ResidentialMortgageMember2023-01-012023-12-310000357301us-gaap:ResidentialMortgageMembertrst:NewYorkAndOtherStatesMemberus-gaap:FirstMortgageMember2023-01-012023-12-310000357301us-gaap:BuildingMember2024-12-310000357301us-gaap:LeaseholdImprovementsMember2023-12-310000357301us-gaap:FurnitureAndFixturesMember2024-12-310000357301us-gaap:BuildingMember2023-12-310000357301us-gaap:LandMember2024-12-310000357301us-gaap:LandMember2023-12-310000357301us-gaap:LeaseholdImprovementsMember2024-12-310000357301us-gaap:FurnitureAndFixturesMember2023-12-310000357301trst:CashManagementMember2022-12-310000357301srt:FederalHomeLoanBankOfNewYorkMember2024-12-310000357301trst:CashManagementMember2023-12-310000357301srt:FederalHomeLoanBankOfNewYorkMember2023-12-310000357301trst:FederalReserveBankOfNewYorkMember2024-12-310000357301trst:FederalReserveBankOfNewYorkMember2023-12-310000357301trst:CashManagementMember2024-12-310000357301trst:CashManagementMember2022-01-012022-12-310000357301trst:CashManagementMember2024-01-012024-12-310000357301trst:CashManagementMember2023-01-012023-12-310000357301us-gaap:InternalRevenueServiceIRSMembersrt:MaximumMember2024-01-012024-12-310000357301us-gaap:StateAndLocalJurisdictionMembersrt:MinimumMember2024-01-012024-12-310000357301us-gaap:StateAndLocalJurisdictionMembersrt:MaximumMember2024-01-012024-12-310000357301us-gaap:InternalRevenueServiceIRSMembersrt:MinimumMember2024-01-012024-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2022-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2023-01-012023-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-01-012023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMember2022-01-012022-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2022-01-012022-12-310000357301trst:SupplementaryPensionPlanMember2023-01-012023-12-310000357301trst:SupplementaryPensionPlanMember2024-01-012024-12-310000357301trst:SupplementaryPensionPlanMember2024-12-310000357301trst:SupplementaryPensionPlanMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:OtherDebtSecuritiesMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanDebtSecurityMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanEquitySecuritiesMember2024-12-310000357301us-gaap:OtherDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:DefinedBenefitPlanDebtSecurityMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:OtherDebtSecuritiesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:DefinedBenefitPlanDebtSecurityMember2024-12-310000357301us-gaap:DefinedBenefitPlanEquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:OtherDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:DefinedBenefitPlanEquitySecuritiesMemberus-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:DefinedBenefitPlanDebtSecurityMemberus-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:DefinedBenefitPlanEquitySecuritiesMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:DefinedBenefitPlanDebtSecurityMembertrst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMembersrt:MinimumMember2024-12-310000357301trst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMemberus-gaap:DefinedBenefitPlanDebtSecurityMembersrt:MaximumMember2024-12-310000357301srt:MinimumMembertrst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMemberus-gaap:DefinedBenefitPlanEquitySecuritiesMember2024-12-310000357301trst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMembersrt:MaximumMemberus-gaap:DefinedBenefitPlanEquitySecuritiesMember2024-12-310000357301srt:MinimumMemberus-gaap:OtherDebtSecuritiesMembertrst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMember2024-12-310000357301srt:MaximumMemberus-gaap:OtherDebtSecuritiesMembertrst:DefinedBenefitPensionPlansAndDefinedBenefitPostretirementPlansMember2024-12-310000357301us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:EquityFundsMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310000357301us-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EquityFundsMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel2Memberus-gaap:FixedIncomeFundsMember2023-12-310000357301us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:EquityFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FixedIncomeFundsMember2023-12-310000357301us-gaap:CashAndCashEquivalentsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMember2024-12-310000357301us-gaap:EquityFundsMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMember2024-12-310000357301us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EquityFundsMember2023-12-310000357301us-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel2Member2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2023-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel2Memberus-gaap:CashAndCashEquivalentsMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2023-12-310000357301us-gaap:FixedIncomeFundsMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:EquityFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:CorporateDebtSecuritiesMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:EquityFundsMember2023-12-310000357301us-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Member2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:CashAndCashEquivalentsMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:FairValueInputsLevel2Member2024-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EquityFundsMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Memberus-gaap:CashAndCashEquivalentsMember2024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMemberus-gaap:FairValueInputsLevel1Member2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:EquityFundsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:CashAndCashEquivalentsMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FixedIncomeFundsMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2024-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:EquityFundsMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Memberus-gaap:EquityFundsMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMember2023-12-310000357301us-gaap:CorporateDebtSecuritiesMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:PensionPlansDefinedBenefitMemberus-gaap:CashAndCashEquivalentsMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2023-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EquityFundsMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel1Member2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:EstimateOfFairValueFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:CashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMember2023-12-310000357301us-gaap:CashAndCashEquivalentsMemberus-gaap:EstimateOfFairValueFairValueDisclosureMemberus-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2023-12-310000357301us-gaap:EquityFundsMemberus-gaap:FairValueInputsLevel2Memberus-gaap:PensionPlansDefinedBenefitMember2024-12-310000357301us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:FixedIncomeFundsMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:CashAndCashEquivalentsMemberus-gaap:PensionPlansDefinedBenefitMemberus-gaap:FairValueInputsLevel2Member2023-12-310000357301trst:Four01KPlanMember2024-01-012024-12-310000357301trst:Four01KPlanMember2022-01-012022-12-310000357301trst:Four01KPlanMember2021-01-012021-12-310000357301trst:Four01KPlanMember2023-01-012023-12-310000357301trst:ExecutiveIncentivePlanMember2023-01-012023-12-310000357301trst:ExecutiveIncentivePlanMember2022-01-012022-12-310000357301trst:ExecutiveIncentivePlanMember2024-01-012024-12-310000357301trst:TwoThousandNineteenEquityIncentivePlanMember2019-05-310000357301trst:TwoThousandNineteenEquityIncentivePlanMember2024-12-310000357301trst:TwoThousandNineteenEquityIncentivePlanMember2024-01-012024-12-310000357301us-gaap:EmployeeStockOptionMember2023-12-310000357301us-gaap:EmployeeStockOptionMember2024-01-012024-12-310000357301us-gaap:EmployeeStockOptionMember2022-01-012022-12-310000357301us-gaap:EmployeeStockOptionMember2023-01-012023-12-310000357301us-gaap:EmployeeStockOptionMember2024-12-310000357301us-gaap:RestrictedStockUnitsRSUMember2023-12-310000357301us-gaap:PerformanceSharesMember2023-12-310000357301us-gaap:PerformanceSharesMember2024-12-310000357301us-gaap:RestrictedStockUnitsRSUMember2024-12-310000357301us-gaap:PerformanceSharesMember2023-01-012023-12-310000357301us-gaap:RestrictedStockUnitsRSUMember2023-01-012023-12-310000357301trst:LiabilityAwardsMemberus-gaap:PerformanceSharesMember2023-12-310000357301us-gaap:RestrictedStockUnitsRSUMembertrst:LiabilityAwardsMember2023-12-310000357301trst:LiabilityAwardsMemberus-gaap:PerformanceSharesMember2024-12-310000357301trst:LiabilityAwardsMemberus-gaap:RestrictedStockUnitsRSUMember2024-12-310000357301us-gaap:RestrictedStockUnitsRSUMembertrst:LiabilityAwardsMember2023-01-012023-12-310000357301us-gaap:PerformanceSharesMembertrst:LiabilityAwardsMember2023-01-012023-12-310000357301us-gaap:PerformanceSharesMembertrst:LiabilityAwardsMember2022-01-012022-12-310000357301trst:LiabilityAwardsMemberus-gaap:RestrictedStockUnitsRSUMember2022-01-012022-12-310000357301trst:ThirdPartyServiceAgreementMembersrt:MaximumMember2024-01-012024-12-310000357301srt:MinimumMembertrst:ThirdPartyServiceAgreementMember2024-01-012024-12-310000357301us-gaap:EmployeeStockOptionMember2023-01-012023-12-310000357301us-gaap:EmployeeStockOptionMember2024-01-012024-12-310000357301us-gaap:StandbyLettersOfCreditMember2023-12-310000357301us-gaap:CommitmentsToExtendCreditMember2024-12-310000357301us-gaap:StandbyLettersOfCreditMember2024-12-310000357301us-gaap:CommitmentsToExtendCreditMember2023-12-310000357301us-gaap:StandbyLettersOfCreditMember2024-01-012024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsRecurringMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2024-12-310000357301us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueMeasurementsRecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310000357301us-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2024-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2023-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel1Member2023-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2023-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301srt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301srt:MinimumMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301srt:MaximumMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-12-310000357301srt:WeightedAverageMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301srt:WeightedAverageMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMembersrt:MinimumMember2023-12-310000357301us-gaap:FairValueInputsLevel2Memberus-gaap:ResidentialMortgageMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:FairValueInputsLevel2Member2023-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301us-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:ResidentialMortgageMemberus-gaap:FairValueInputsLevel1Member2024-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-12-310000357301us-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsNonrecurringMemberus-gaap:ResidentialMortgageMember2023-12-310000357301us-gaap:FairValueInputsLevel3Memberus-gaap:ResidentialMortgageMemberus-gaap:FairValueMeasurementsNonrecurringMember2023-12-310000357301us-gaap:ResidentialMortgageMemberus-gaap:CarryingReportedAmountFairValueDisclosureMemberus-gaap:FairValueMeasurementsNonrecurringMember2024-12-310000357301us-gaap:FairValueInputsLevel3Member2024-12-310000357301us-gaap:FairValueInputsLevel2Member2023-12-310000357301us-gaap:FairValueInputsLevel3Member2023-12-310000357301us-gaap:FairValueInputsLevel1Member2024-12-310000357301us-gaap:CarryingReportedAmountFairValueDisclosureMember2023-12-310000357301us-gaap:CarryingReportedAmountFairValueDisclosureMember2024-12-310000357301us-gaap:FairValueInputsLevel1Member2023-12-310000357301us-gaap:FairValueInputsLevel2Member2024-12-310000357301srt:SubsidiariesMember2024-12-310000357301srt:SubsidiariesMember2023-12-310000357301srt:ParentCompanyMember2023-12-310000357301srt:ParentCompanyMember2024-12-310000357301trst:ChangeInOverfundedPositionMember2022-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-12-310000357301trst:ChangeInOverfundedPositionMember2023-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-12-310000357301trst:ChangeInOverfundedPositionMember2021-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2021-12-310000357301trst:ChangeInOverfundedPositionMember2023-01-012023-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2023-01-012023-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-01-012024-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-01-012024-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2022-01-012022-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2023-01-012023-12-310000357301trst:ChangeInOverfundedPositionMember2024-01-012024-12-310000357301trst:ChangeInOverfundedPositionMember2022-01-012022-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-12-310000357301us-gaap:AccumulatedNetUnrealizedInvestmentGainLossMember2024-12-310000357301trst:ChangeInOverfundedPositionMember2024-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember2022-01-012022-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2024-01-012024-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember2024-01-012024-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2022-01-012022-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2024-01-012024-12-310000357301us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2024-01-012024-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2023-01-012023-12-310000357301us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2022-01-012022-12-310000357301trst:OtherMember2023-01-012023-12-310000357301trst:InterchangeIncomeMember2023-01-012023-12-310000357301trst:InterchangeIncomeMember2024-01-012024-12-310000357301trst:OverdraftFeesMember2022-01-012022-12-310000357301trst:OtherMember2022-01-012022-12-310000357301trst:InterchangeIncomeMember2022-01-012022-12-310000357301trst:WealthManagementFeesMember2022-01-012022-12-310000357301trst:WealthManagementFeesMember2024-01-012024-12-310000357301trst:OtherMember2024-01-012024-12-310000357301trst:OverdraftFeesMember2024-01-012024-12-310000357301trst:WealthManagementFeesMember2023-01-012023-12-310000357301trst:OverdraftFeesMember2023-01-012023-12-310000357301srt:MaximumMember2024-12-310000357301srt:MinimumMember2024-12-310000357301srt:DirectorMember2024-12-310000357301srt:DirectorMember2023-01-012023-12-310000357301srt:DirectorMember2022-01-012022-12-310000357301srt:DirectorMember2024-01-012024-12-310000357301srt:DirectorMember2023-12-310000357301srt:ParentCompanyMember2022-01-012022-12-310000357301srt:ParentCompanyMember2024-01-012024-12-310000357301srt:ParentCompanyMember2023-01-012023-12-310000357301srt:ParentCompanyMember2022-12-310000357301srt:ParentCompanyMember2021-12-31iso4217:USDxbrli:sharesiso4217:USDxbrli:sharesxbrli:puretrst:Modificationutr:Hutr:Ytrst:Classificationtrst:Leasetrst:Propertytrst:Segment