Amount collected from oversubscribed offering.

No definition available.

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- Definition

Capital Conservation Buffer

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No definition available.

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- Definition

Gross proceeds from issuance of common stock.

+ References

No definition available.

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- Definition

Leverage Ratio

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No definition available.

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- Definition

The minimum Total risk based capital ratio (total capital divided by risk weighted assets) required for capital adequacy purposes under the regulatory framework for prompt corrective action.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1H

-Subparagraph (c)(2)

-URI http://asc.fasb.org/extlink&oid=7881181&loc=d3e65071-112826

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1

-Subparagraph (c)(1)

-URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958568-112826

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 505

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=7881181&loc=SL5958570-112826

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- Definition

Amount per share or per unit of equity securities issued by non-development stage entity.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.

+ References

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- Definition

The minimum amount of Tier 1 Leverage Capital for capital adequacy purposes divided by average assets as defined in the regulations.

+ References

+ Details

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- Definition

Tier 1 capital divided by risk weighted assets as defined by regulations.

+ References

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Regulatory Capital (Narrative) (Details) (USD $)	12 Months Ended
Regulatory Capital (Narrative) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2013
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common stock shares sold in rights offering	760,713
Common stock shares sold, price per share	$ 8.30us-gaap_SharesIssuedPricePerShare
Gross proceeds from issuance of common stock	$ 6,300,000
Proceeds from rights offering, net	6,143,000
Amount collected from oversubscribed offering	$ 16,000,000
Leverage Ratio	3.00%unty_LeverageRatio
Leverage ratio: For Capital Adequacy Purposes Ratio	4.00%		4.00%
Total capital ratio	8.00%		8.00%
Tier 1 capital to risk-weighted assets ratio	11.57%		10.74%
Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage ratio: For Capital Adequacy Purposes Ratio	4.00%		4.00%
Total capital ratio	8.00%		8.00%
Tier 1 capital to risk-weighted assets ratio	10.37%		9.33%
Scenario, Forecast [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage Ratio		6.00%
Tier 1 capital to risk-weighted assets ratio		4.50%
Capital Conservation Buffer		2.50%
Scenario Forecast, Year One [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Conservation Buffer	0.625%
Scenario Forecast, Year Two [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Conservation Buffer	1.25%
Scenario Forecast, Year Three [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital Conservation Buffer	1.875%
Scenario Forecast, Final [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage ratio: For Capital Adequacy Purposes Ratio	4.00%
Total capital ratio	8.00%
Capital Conservation Buffer	2.50%
Minimum [Member] \| Scenario, Forecast [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage ratio: For Capital Adequacy Purposes Ratio		4.00%
Total capital ratio		8.00%