Loans Receivable And Credit Quality (Narrative) (Details) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 loan	Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 loan
Loans Receivable And Credit Quality [Abstract]
Available Commitments Outstanding on TDRs \| $	$ 0		$ 0
Number of Loans	0	0	0	0
Number of Loans experiencing payment default	0	0	0	0

Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration