Goodwill (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Abstract]
Goodwill and other intangibles	$ 1,516	$ 1,530

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Also includes the sum of the carrying amounts of all finite-lived intangible assets as of the balance sheet date, net of accumulated amortization and impairment charges.

No definition available.

Name:	unty_GoodwillAndOtherIntangibles
Namespace Prefix:	unty_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant