Loans Receivable and Allowance for Loan Losses (Components Of Purchase Accounting Adjustments Related To Purchased Credit-impaired Loans Acquired) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Jul. 31, 2016
Loans Receivable and Allowance for Loan Losses [Abstract]
Contractually required principal and interest			$ 2,621
Non-accretable discount			(1,014)
Expected cash flows			1,607
Accretable discount			(239)
Estimated fair value	$ 1,256	$ 1,386	$ 1,368

The recorded balance, net of any applicable reductions (for example, unamortized accretable yield and other-than-temporary impairments), for loans accounted for as debt securities with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 15
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=27045933&loc=d3e13503-111538

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

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