This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 25
-Paragraph 23
-URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460

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

ACQUISITIONS, Intangible Asset, Goodwill and Acquisition-related Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Summary of loans acquired [Abstract]
Merger and acquisition integration-related expenses	$ 2	$ 562	$ 342	$ 1,318
Oneida Financial Corp [Member] \| Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life			8 years
Oneida Financial Corp [Member] \| Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life			8 years
WJL Agencies Inc [Member] \| Other Intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful life			8 years