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Loans (Aging Analysis Of Past Due And Nonaccrual Loans By Class) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due $ 9,070us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue $ 8,050us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 1,024us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue 524us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 890us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue 19us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
Financing Receivable, Recorded Investment, Nonaccrual Status 11,368us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus [1] 15,283us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus [2]
Financing Receivable, Recorded Investment, Past Due 22,352us-gaap_FinancingReceivableRecordedInvestmentPastDue 23,876us-gaap_FinancingReceivableRecordedInvestmentPastDue
Financing Receivable, Recorded Investment, Current 739,473us-gaap_FinancingReceivableRecordedInvestmentCurrent 654,825us-gaap_FinancingReceivableRecordedInvestmentCurrent
Total loans 756,646us-gaap_LoansAndLeasesReceivableGrossCarryingAmount 672,028us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
SBA loans held for sale 5,179us-gaap_LoansHeldForSaleOther 6,673us-gaap_LoansHeldForSaleOther
Total loans 761,825us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome 678,701us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Troubled Debt Restructuring (TDR) [Member] | Non Accrual [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Performing troubled debt restructurings 3,000unty_PerformingTroubledDebtRestructurings
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= unty_NonAccrualMember		 467unty_PerformingTroubledDebtRestructurings
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= unty_NonAccrualMember
Troubled Debt Restructuring (TDR) [Member] | Accrual [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Performing troubled debt restructurings 3,500unty_PerformingTroubledDebtRestructurings
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= unty_AccrualMember		 7,500unty_PerformingTroubledDebtRestructurings
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember
/ us-gaap_MortgageLoansOnRealEstateLoanTypeAxis
= unty_AccrualMember
SBA, SBA 504, and Commercial Loans [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total loans 476,672us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504AndCommercialLoansMember		 443,822us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504AndCommercialLoansMember
Residential and Consumer Loans [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total loans 279,974us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ResidentialAndConsumerLoansMember		 228,206us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ResidentialAndConsumerLoansMember
Small Business Administration Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 1,093us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 4,314us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 147us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 264us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 161us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		  
Financing Receivable, Recorded Investment, Nonaccrual Status 3,348us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 [1] 2,746us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 [2]
Financing Receivable, Recorded Investment, Past Due 4,749us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 7,324us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Financing Receivable, Recorded Investment, Current 35,652us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 41,594us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Total loans 40,401us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember		 48,918us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Small Business Administration, 504 Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 1,639us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		  
Financing Receivable, Recorded Investment, Nonaccrual Status 2,109us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		 [1] 1,101us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		 [2]
Financing Receivable, Recorded Investment, Past Due 3,748us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		 1,101us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember
Financing Receivable, Recorded Investment, Current 30,574us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		 30,463us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember
Total loans 34,322us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember		 31,564us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministration504PortfolioSegmentMember
Commercial Other Receivable [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due   123us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember
Financing Receivable, Recorded Investment, Nonaccrual Status 1,129us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember		 [1] 67us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember		 [2]
Financing Receivable, Recorded Investment, Past Due 1,129us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember		 190us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember
Financing Receivable, Recorded Investment, Current 39,478us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember		 37,421us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember
Total loans 40,607us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember		 37,611us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_CommercialOtherReceivableMember
Commercial Real Estate Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 2,812us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 347us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due   190us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 7us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 14us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Financing Receivable, Recorded Investment, Nonaccrual Status 3,592us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [1] 3,785us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 [2]
Financing Receivable, Recorded Investment, Past Due 6,411us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 4,336us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Financing Receivable, Recorded Investment, Current 333,282us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 313,135us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Total loans 339,693us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember		 317,471us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Commercial Real Estate Construction Financing Receivable [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, Nonaccrual Status   177us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember		 [2]
Financing Receivable, Recorded Investment, Past Due   177us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Financing Receivable, Recorded Investment, Current 21,649us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember		 8,081us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Total loans 21,649us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember		 8,258us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstateConstructionFinancingReceivableMember
Commercial Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total loans 401,949us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember		 363,340us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Residential Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 2,887us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 3,050us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 658us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		  
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 722us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 5us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
Financing Receivable, Recorded Investment, Nonaccrual Status 645us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 [1] 5,727us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 [2]
Financing Receivable, Recorded Investment, Past Due 4,912us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 8,782us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
Financing Receivable, Recorded Investment, Current 215,966us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 173,285us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
Total loans 220,878us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember		 182,067us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ResidentialPortfolioSegmentMember
Consumer Home Equity Line Financing Receivable [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 639us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 142us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 213us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 69us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember
Financing Receivable, Recorded Investment, Nonaccrual Status 543us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 [1] 1,675us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 [2]
Financing Receivable, Recorded Investment, Past Due 1,395us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 1,886us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember
Financing Receivable, Recorded Investment, Current 40,056us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 41,818us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember
Total loans 41,451us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember		 43,704us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_ConsumerHomeEquityLineFinancingReceivableMember
Consumer Other Financing Receivable [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due   9us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 6us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 1us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember
Financing Receivable, Recorded Investment, Nonaccrual Status 2us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 [1] 5us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 [2]
Financing Receivable, Recorded Investment, Past Due 8us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 15us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember
Financing Receivable, Recorded Investment, Current 17,637us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 2,420us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember
Total loans 17,645us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember		 2,435us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerOtherFinancingReceivableMember
Consumer Portfolio Segment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Total loans 59,096us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember		 46,139us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_ConsumerPortfolioSegmentMember
Loans Held for Investment [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due 9,070us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 7,985us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due 1,024us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 524us-gaap_FinancingReceivableRecordedInvestment60To89DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due 890us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 19us-gaap_FinancingReceivableRecordedInvestmentEqualToGreaterThan90DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
Financing Receivable, Recorded Investment, Nonaccrual Status 11,368us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 [1] 15,283us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 [2]
Financing Receivable, Recorded Investment, Past Due 22,352us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 23,811us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
Financing Receivable, Recorded Investment, Current 734,294us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 648,217us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
Total loans 756,646us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember		 672,028us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansHeldForInvestmentMember
SBA Loans Held For Sale [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due   65us-gaap_FinancingReceivableRecordedInvestment30To59DaysPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember
Financing Receivable, Recorded Investment, Past Due   65us-gaap_FinancingReceivableRecordedInvestmentPastDue
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember
Financing Receivable, Recorded Investment, Current 5,179us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember		 6,608us-gaap_FinancingReceivableRecordedInvestmentCurrent
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember
SBA loans held for sale 5,179us-gaap_LoansHeldForSaleOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember		 6,673us-gaap_LoansHeldForSaleOther
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SbaLoansHeldForSaleMember
Loans Guaranteed By Small Business Administration [Member] | Troubled Debt Restructuring (TDR) [Member]    
Financing Receivable, Recorded Investment [Line Items]    
Performing troubled debt restructurings $ 1,600unty_PerformingTroubledDebtRestructurings
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansGuaranteedBySmallBusinessAdministrationMember
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember		 $ 540unty_PerformingTroubledDebtRestructurings
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_LoansGuaranteedBySmallBusinessAdministrationMember
/ us-gaap_InternalCreditAssessmentAxis
= unty_TroubledDebtRestructuringTdrMember
[1] At December 31, 2014, nonaccrual loans included $3.0 million of TDRs and $1.6 million of loans guaranteed by the SBA.  The remaining $3.5 million of TDRs are in accrual status because they are performing in accordance with their restructured terms, and have been for at least six months.
[2] At December 31, 2013, nonaccrual loans included $467 thousand of TDRs and $540 thousand of loans guaranteed by the SBA.  The remaining $7.5 million of TDRs are in accrual status because they are performing in accordance with their restructured terms, and have been for at least six months.