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Fair Value (Fair Value On A Nonrecurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
OREO $ 1,162unty_OtherRealEstateOwnedFairValueDisclosure $ 633unty_OtherRealEstateOwnedFairValueDisclosure
Impaired collateral-dependent loans 4,897unty_ImpairedCollateralDependentLoansFairValueDisclosure 4,540unty_ImpairedCollateralDependentLoansFairValueDisclosure
Change During Period, Fair Value Disclosure [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
OREO (965)unty_OtherRealEstateOwnedFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_ChangeDuringPeriodFairValueDisclosureMember
(769)unty_OtherRealEstateOwnedFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_ChangeDuringPeriodFairValueDisclosureMember
Impaired collateral-dependent loans (23)unty_ImpairedCollateralDependentLoansFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_ChangeDuringPeriodFairValueDisclosureMember
863unty_ImpairedCollateralDependentLoansFairValueDisclosure
/ us-gaap_FairValueByMeasurementBasisAxis
= us-gaap_ChangeDuringPeriodFairValueDisclosureMember
Fair Value, Inputs, Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
OREO 1,162unty_OtherRealEstateOwnedFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
633unty_OtherRealEstateOwnedFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
Impaired collateral-dependent loans $ 4,897unty_ImpairedCollateralDependentLoansFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member
$ 4,540unty_ImpairedCollateralDependentLoansFairValueDisclosure
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel3Member