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Servicing (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Note 6 - Servicing (Details) [Line Items]      
Unpaid Principal Balance of Loans Serviced for Others (in Dollars) 171,255,000uboh_UnpaidPrincipalBalanceOfLoansServicedForOthers 176,855,000uboh_UnpaidPrincipalBalanceOfLoansServicedForOthers  
Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Incremental Increase Based On Loan Count (in Dollars) 1uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueIncrementalIncreaseBasedOnLoanCount    
Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Prepayment Factor 195uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentFactor 164uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentFactor 398uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValuePrepaymentFactor
Inflation Rate [Member]      
Note 6 - Servicing (Details) [Line Items]      
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 3.00%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis
= uboh_InflationRateMember		    
Earnings Rate [Member]      
Note 6 - Servicing (Details) [Line Items]      
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 0.25%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis
= uboh_EarningsRateMember		 0.25%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis
= uboh_EarningsRateMember		 1.00%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_ManagingRisksInherentInServicingAssetsAndServicingLiabilitiesByTypeOfRiskAxis
= uboh_EarningsRateMember
Minimum [Member]      
Note 6 - Servicing (Details) [Line Items]      
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 8.00%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Servicing Costs (in Dollars) 40uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueServicingCosts
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		    
Maximum [Member]      
Note 6 - Servicing (Details) [Line Items]      
Servicing Assets and Servicing Liabilities at Fair Value, Assumptions Used to Estimate Fair Value, Discount Rate 10.00%us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		    
Servicing Assets And Servicing Liabilities At Fair Value Assumptions Used To Estimate Fair Value Servicing Costs (in Dollars) 55uboh_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueServicingCosts
/ us-gaap_RangeAxis
= us-gaap_MaximumMember