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Interest expense incurred on interest bearing demand deposits and Negotiable Order of Withdrawal (NOW) Interest bearing transaction accounts that combines the payable on demand feature of checks and investment feature of savings accounts. A NOW account is functionally an interest paying checking account.

No definition available.

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Interest and fee income generated from consumer loans, excluding residential mortgages. Consumer loans are loans to individuals for household, family, and other personal expenditures. Such loans include home equity lines-of-credit, automobiles and marine transport loans, credit card transactions, and others.

No definition available.

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Includes interest income, net of discount accretion and premium amortization, and dividend income on Federal Home Loan Bank stock and Atlantic Central Bankers Bank stock.

No definition available.

Name:	unty_InterestIncomeFederalHomeLoanBankStock
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Interest income derived from federal funds sold and total interest bearing deposits.

No definition available.

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Interest and fee income on loans originated through the SBA's 504 loan program.

No definition available.

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Interest and fee income on loans originated through the SBA's 7a program.

No definition available.

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Expenses incurred in conjunction with the loan collection process. Expenses include legal, appraisal, filings, inspections, etc.

No definition available.

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Loan fees consist primarily of late charges, loan processing fees, prepayment penalties. The servicing income consists mainly of SBA servicing and a small portion commercial.

No definition available.

Name:	unty_ServiceAndLoanFeeIncome
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Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.

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The amount of expense in the period for communications and data processing expense.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item may also include furniture expenses.

No definition available.

Name:	us-gaap_EquipmentExpense
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Amount of expense for Federal Deposit Insurance Corporation (FDIC) insurance.

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Includes amounts charged depositors for: (1) maintenance of their accounts (maintenance charges); (2) failure to maintain specified minimum balances on account; (3) exceeding the number of checks or transactions allowed to be processed in a given period; (4) checks drawn on no minimum balance deposit accounts; (5) withdrawals from nontransaction deposit accounts; (6) closing savings accounts before a specified minimum period of time has elapsed; (7) accounts which have remained inactive for extended periods of time or which have become dormant; (8) use of automated teller machines or remote service units; (9) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (10) issuing stop payment orders; (11) certifying checks; and (12) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits.

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Amount of expense recognized during the period for the foreclosure on real estate assets.

No definition available.

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Balance Type:	debit
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Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase.

No definition available.

Name:	us-gaap_GainLossOnRepurchaseOfDebtInstrument
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Period Type:	duration

The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The net gain (loss) realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

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Name:	us-gaap_GainLossOnSaleOfSecuritiesNet
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Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Subparagraph (SX 210.4-08.(h))
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-Glossary Income Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6515339

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Name:	us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

Name:	us-gaap_InterestAndDividendIncomeOperating
Namespace Prefix:	us-gaap_
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Period Type:	duration

No definition available.

Name:	us-gaap_InterestAndDividendIncomeOperatingAbstract
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Amount of operating dividend and interest income, including amortization and accretion of premiums and discounts, on securities.

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-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 2, 3
-Article 9

Name:	us-gaap_InterestAndDividendIncomeSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

Name:	us-gaap_InterestAndFeeIncomeLoansAndLeases
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Period Type:	duration

No definition available.

Name:	us-gaap_InterestAndFeeIncomeLoansAndLeasesAbstract
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Interest and fee income related to commercial loans including industrial and agricultural, real estate (commercial and residential, construction and development), trade financing, and lease financing.

Name:	us-gaap_InterestAndFeeIncomeLoansCommercial
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Interest and fee income generated from loans secured by one- to four-family residential properties. This item excludes home equity lines-of-credit.

Name:	us-gaap_InterestAndFeeIncomeLoansConsumerRealEstate
Namespace Prefix:	us-gaap_
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Amount of the cost of borrowed funds accounted for as interest expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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No definition available.

Name:	us-gaap_InterestExpenseAbstract
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Aggregate amount of interest expense on all borrowings.

Name:	us-gaap_InterestExpenseBorrowings
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Interest expense incurred on all savings account deposits.

Name:	us-gaap_InterestExpenseSavingsDeposits
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The aggregate interest expense incurred on time deposits, including certificates of deposits, in domestic offices.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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Amount of interest income or expense, including any amortization and accretion (as applicable) of discounts and premiums, including consideration of the provisions for loan, lease, credit, and other related losses.

Name:	us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss
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The net amount of operating interest income (expense).

Name:	us-gaap_InterestIncomeExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

No definition available.

Name:	us-gaap_InterestIncomeSecuritiesBySecurityTypeAbstract
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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities exempt from state, federal and other income tax.

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Amount of operating interest income, including amortization and accretion of premiums and discounts, on securities subject to state, federal and other income tax.

Name:	us-gaap_InterestIncomeSecuritiesTaxable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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The aggregate amount of expenditures for salaries, wages, profit sharing and incentive compensation, and other employee benefits, including equity-based compensation, and pension and other postretirement benefit expense.

Name:	us-gaap_LaborAndRelatedExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The total expense recognized in the period for promotion, public relations, and brand or product advertising.

Name:	us-gaap_MarketingAndAdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Glossary Net Income
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Subparagraph (SX 210.7-04.19)
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-Paragraph 1
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-Paragraph 2
-Subparagraph (SX 210.5-03.18)
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-Subparagraph (SX 210.7-04.22)
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Reference 7: http://www.xbrl.org/2003/role/presentationRef
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-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

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-Number 210
-Section 03
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-Article 5

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Total aggregate amount of all noninterest expense.

Name:	us-gaap_NoninterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

No definition available.

Name:	us-gaap_NoninterestExpenseAbstract
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Data Type:	xbrli:stringItemType
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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

Name:	us-gaap_NoninterestIncome
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No definition available.

Name:	us-gaap_NoninterestIncomeAbstract
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Represents other forms of revenue earned, excluding interest, which is not otherwise specified in the taxonomy.

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Amount of net occupancy expense that may include items, such as depreciation of facilities and equipment, lease expenses, property taxes and property and casualty insurance expense.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SX 210.9-04.14(b))
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Other noninterest expenses that are not separately presented in any other noninterest expense category.

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A fee charged for services from professionals such as doctors, lawyers and accountants. The term is often expanded to include other professions, for example, pharmacists charging to maintain a medicinal profile of a client or customer.

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Amount of expense related to estimated loss from loan and lease transactions.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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