Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and due from banks	$ 25,282us-gaap_CashAndDueFromBanks	$ 29,351us-gaap_CashAndDueFromBanks
Federal funds sold and interest-bearing deposits	108,563	100,470
Cash and cash equivalents	133,845	129,821
Securities:
Securities available for sale	57,875us-gaap_AvailableForSaleSecurities	60,073us-gaap_AvailableForSaleSecurities
Securities held to maturity (fair value of $19,771 and $20,281, respectively)	19,433us-gaap_HeldToMaturitySecurities	20,009us-gaap_HeldToMaturitySecurities
Total securities	77,308us-gaap_MarketableSecurities	80,082us-gaap_MarketableSecurities
Loans:
SBA loans held for sale	6,929us-gaap_LoansHeldForSaleOther	5,179us-gaap_LoansHeldForSaleOther
SBA loans held for investment	39,155unty_SBHeldToMaturity	40,401unty_SBHeldToMaturity
SBA 504 loans	29,893unty_SB504	34,322unty_SB504
Commercial loans	410,742	401,949
Residential mortgage loans	235,371	220,878
Consumer loans	62,552unty_LoansConsumer	59,096unty_LoansConsumer
Total loans	784,642	761,825
Allowance for loan losses	(12,181)	(12,551)
Net loans	772,461	749,274
Premises and equipment, net	15,465us-gaap_PropertyPlantAndEquipmentNet	15,231us-gaap_PropertyPlantAndEquipmentNet
Bank owned life insurance ("BOLI")	13,095us-gaap_BankOwnedLifeInsurance	13,001us-gaap_BankOwnedLifeInsurance
Deferred tax assets	5,743us-gaap_DeferredTaxAssetsLiabilitiesNet	5,860us-gaap_DeferredTaxAssetsLiabilitiesNet
Federal Home Loan Bank ("FHLB") stock	7,382us-gaap_FederalHomeLoanBankStock	6,032us-gaap_FederalHomeLoanBankStock
Accrued interest receivable	3,637us-gaap_InterestReceivable	3,518us-gaap_InterestReceivable
Other real estate owned ("OREO")	1,975	1,162
Goodwill and other intangibles	1,516	1,516
Other assets	2,977us-gaap_PrepaidExpenseAndOtherAssets	3,291us-gaap_PrepaidExpenseAndOtherAssets
Total assets	1,035,404us-gaap_Assets	1,008,788us-gaap_Assets
Liabilities:
Deposits: Noninterest-bearing demand deposits	163,535	152,785
Deposits: Interest-bearing demand deposits	124,110	128,875
Deposits: Savings deposits	290,843us-gaap_DepositsSavingsDeposits	300,348us-gaap_DepositsSavingsDeposits
Deposits: Time deposits, under $100,000	112,671us-gaap_TimeDepositsLessThan100000	113,119us-gaap_TimeDepositsLessThan100000
Deposits: Time deposits, $100,000 and over	98,282us-gaap_TimeDeposits100000OrMore	99,214us-gaap_TimeDeposits100000OrMore
Total deposits	789,441us-gaap_Deposits	794,341us-gaap_Deposits
Borrowed funds	155,000us-gaap_BorrowedFunds	125,000us-gaap_BorrowedFunds
Subordinated debentures	15,465us-gaap_SubordinatedDebt	15,465us-gaap_SubordinatedDebt
Accrued interest payable	478	474
Accrued expenses and other liabilities	3,033	3,385
Total liabilities	963,417us-gaap_Liabilities	938,665us-gaap_Liabilities
Commitments and contingencies
Shareholders' equity:
Common stock	58,927us-gaap_CommonStockValueOutstanding	58,785us-gaap_CommonStockValueOutstanding
Retained earnings	12,880	11,195
Accumulated other comprehensive income	180	143
Total shareholders' equity	71,987us-gaap_StockholdersEquity	70,123us-gaap_StockholdersEquity
Total liabilities and shareholders' equity	$ 1,035,404	$ 1,008,788

Total amount of interest-bearing domestic demand deposit liabilities held by the entity.

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For banks and other depository institutions: Interest-bearing deposits in other financial institutions for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. This tag also includes the amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements.

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, collateralized financings, and capital lease obligations.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur.

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Value of all classes of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares exclude common shares repurchased by the entity and held as treasury shares.

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Amount of interest bearing deposits with no stated maturity, which may include passbook and statement savings accounts and money-market deposit accounts (MMDAs).

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