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Securities (Schedule Of Marketable Securities By Contractual Maturity) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Schedule of Investments [Line Items]    
Available for sale at fair value, Within one year $ 40us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue  
Available for sale at fair value yield, Within one year 6.49%unty_AvailableForSaleSecuritiesDebtMaturitiesNextTwelveMonthsFairValueYield  
Available for sale at fair value, After one through five years 6,303us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue  
Available for sale at fair value yield, After one through five years 1.42%unty_AvailableForSaleSecuritiesDebtMaturitiesYearTwoThroughFiveYearsFairValueYield  
Available for sale at fair value, After five through ten years 10,980us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue  
Available for sale at fair value yield, After five through ten years 2.09%unty_AvailableForSaleSecuritiesDebtMaturitiesYearSixThroughTenYearsFairValueYield  
Available for sale at fair value, After ten years 42,750us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue  
Available for sale at fair value yield, After ten years 2.55%unty_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValueYield  
Available-for-sale Securities 60,073us-gaap_AvailableForSaleSecurities 81,133us-gaap_AvailableForSaleSecurities
Available for sale at fair value yield 2.35%unty_AvailableForSaleSecuritiesTotalFairValueYield  
Held to maturity at cost, Within one year 309us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount  
Held to maturity at cost yield, Within one year 0.75%unty_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmountYield  
Held to maturity at cost, After one through five years 468us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount  
Held to maturity at cost yield, After one through five years 4.87%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmountYield  
Held to maturity at cost, After five through ten years 1,255us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount  
Held to maturity at cost yield, After five through ten years 3.44%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmountYield  
Held to maturity at cost, After ten years 17,977us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount  
Held to maturity at cost yield, After ten years 2.90%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmountYield  
Held to maturity Securities 20,009us-gaap_HeldToMaturitySecurities 26,381us-gaap_HeldToMaturitySecurities
Held to maturity at cost yield, 2.94%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield  
US Government Agencies Debt Securities [Member]    
Schedule of Investments [Line Items]    
Available for sale at fair value, After one through five years 1,014us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available for sale at fair value yield, After one through five years 1.00%unty_AvailableForSaleSecuritiesDebtMaturitiesYearTwoThroughFiveYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available for sale at fair value, After five through ten years 956us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available for sale at fair value yield, After five through ten years 2.06%unty_AvailableForSaleSecuritiesDebtMaturitiesYearSixThroughTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available for sale at fair value, After ten years 2,648us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available for sale at fair value yield, After ten years 2.04%unty_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Available-for-sale Securities 4,618us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
6,418us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Available for sale at fair value yield 1.82%unty_AvailableForSaleSecuritiesTotalFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Held to maturity at cost, After ten years 4,440us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Held to maturity at cost yield, After ten years 1.97%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
Held to maturity Securities 4,440us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
5,814us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Held to maturity at cost yield, 1.97%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USGovernmentAgenciesDebtSecuritiesMember
 
US States and Political Subdivisions Debt Securities [Member]    
Schedule of Investments [Line Items]    
Available for sale at fair value, Within one year 40us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value yield, Within one year 6.49%unty_AvailableForSaleSecuritiesDebtMaturitiesNextTwelveMonthsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value, After one through five years 1,165us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value yield, After one through five years 2.23%unty_AvailableForSaleSecuritiesDebtMaturitiesYearTwoThroughFiveYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value, After five through ten years 6,189us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value yield, After five through ten years 2.37%unty_AvailableForSaleSecuritiesDebtMaturitiesYearSixThroughTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value, After ten years 3,738us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available for sale at fair value yield, After ten years 2.60%unty_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Available-for-sale Securities 11,132us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
16,598us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
Available for sale at fair value yield 2.45%unty_AvailableForSaleSecuritiesTotalFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Held to maturity at cost, Within one year 309us-gaap_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Held to maturity at cost yield, Within one year 0.75%unty_HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Held to maturity at cost, After ten years 2,108us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Held to maturity at cost yield, After ten years 4.72%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Held to maturity Securities 2,417us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
2,441us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
Held to maturity at cost yield, 4.21%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_USStatesAndPoliticalSubdivisionsMember
 
Residential Mortgage Backed Securities [Member]    
Schedule of Investments [Line Items]    
Available for sale at fair value, After one through five years 1,718us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available for sale at fair value yield, After one through five years 1.70%unty_AvailableForSaleSecuritiesDebtMaturitiesYearTwoThroughFiveYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available for sale at fair value, After five through ten years 2,335us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available for sale at fair value yield, After five through ten years 1.94%unty_AvailableForSaleSecuritiesDebtMaturitiesYearSixThroughTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available for sale at fair value, After ten years 30,330us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available for sale at fair value yield, After ten years 2.81%unty_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Available-for-sale Securities 34,383us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
44,389us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
Available for sale at fair value yield 2.70%unty_AvailableForSaleSecuritiesTotalFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost, After one through five years 468us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost yield, After one through five years 4.87%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost, After five through ten years 272us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost yield, After five through ten years 5.19%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost, After ten years 7,424us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity at cost yield, After ten years 3.01%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Held to maturity Securities 8,164us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
10,395us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
Held to maturity at cost yield, 3.19%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_ResidentialMortgageBackedSecuritiesMember
 
Commercial Mortgage Backed Securities [Member]    
Schedule of Investments [Line Items]    
Available-for-sale Securities   888us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Held to maturity at cost, After ten years 4,005us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
 
Held to maturity at cost yield, After ten years 2.76%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
 
Held to maturity Securities 4,005us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
6,750us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
Held to maturity at cost yield, 2.76%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CommercialMortgageBackedSecuritiesMember
 
Corporate and Other Securities [Member]    
Schedule of Investments [Line Items]    
Available for sale at fair value, After one through five years 2,406us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available for sale at fair value yield, After one through five years 1.00%unty_AvailableForSaleSecuritiesDebtMaturitiesYearTwoThroughFiveYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available for sale at fair value, After five through ten years 1,500us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available for sale at fair value yield, After five through ten years 1.19%unty_AvailableForSaleSecuritiesDebtMaturitiesYearSixThroughTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available for sale at fair value, After ten years 6,034us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available for sale at fair value yield, After ten years 1.43%unty_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Available-for-sale Securities 9,940us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
12,840us-gaap_AvailableForSaleSecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
Available for sale at fair value yield 1.29%unty_AvailableForSaleSecuritiesTotalFairValueYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Held to maturity at cost, After five through ten years 983us-gaap_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Held to maturity at cost yield, After five through ten years 2.95%unty_HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Held to maturity Securities 983us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
981us-gaap_HeldToMaturitySecurities
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
Held to maturity at cost yield, 2.95%unty_HeldToMaturitySecuritiesTotalCarryingAmountYield
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_CorporateDebtSecuritiesMember
 
Parent Company Only [Member]    
Schedule of Investments [Line Items]    
Available-for-sale Securities $ 197us-gaap_AvailableForSaleSecurities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember
$ 167us-gaap_AvailableForSaleSecurities
/ dei_LegalEntityAxis
= us-gaap_ParentCompanyMember