Merger (Fair Value Adjustments) (Details) - Phoenix Bancorp Inc. [Member] $ in Thousands	Mar. 01, 2015 USD ($)
Business Acquisition [Line Items]
Gross amortized cost basis	$ 112,816
Market rate adjustment	270
Credit fair value adjustment on pools of homogeneous loans	(1,461)
Credit fair value adjustment on impaired loans	(1,262)
Fair value of purchased loans	$ 110,363

The amount of financial assets (as defined) recognized as of the acquisition date.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 55

-Paragraph 37

-URI http://asc.fasb.org/extlink&oid=35744172&loc=d3e2207-128464

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-Glossary Financial Asset

-URI http://asc.fasb.org/extlink&oid=6512957

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=56956791&loc=d3e4845-128472

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedFinancialAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant