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Loans (Troubled Debt Restructurings Types Of Modifications) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration $ 2,749unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
Interest Only, With Nominal Principal [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration 65unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_InternalCreditAssessmentAxis
= unty_InterestOnlyWithNominalPrincipalMember
Interest only with reduced interest [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration 2,684unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_InternalCreditAssessmentAxis
= unty_InterestOnlyWithReducedInterestMember
Small Business Administration Portfolio Segment [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration 65unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
Small Business Administration Portfolio Segment [Member] | Interest Only, With Nominal Principal [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration 65unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= unty_SmallBusinessAdministrationPortfolioSegmentMember
/ us-gaap_InternalCreditAssessmentAxis
= unty_InterestOnlyWithNominalPrincipalMember
Commercial Real Estate Portfolio Segment [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration 2,684unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
Commercial Real Estate Portfolio Segment [Member] | Interest only with reduced interest [Member]  
Financing Receivable, Impaired [Line Items]  
Financing Receivable, Modifications, Post-Modification Recorded Investment, Duration $ 2,684unty_FinancingReceivableModificationsPostModficiationRecordedInvestmentDuration
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialRealEstatePortfolioSegmentMember
/ us-gaap_InternalCreditAssessmentAxis
= unty_InterestOnlyWithReducedInterestMember