Loans Receivable and Allowance for Loan Losses (Schedule of Trouble Debt Restructuring Subsequently Defaulted) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2018 USD ($) SecurityLoan	Mar. 31, 2017 USD ($) SecurityLoan
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	3	1
Outstanding Recorded Investment \| $	$ 428	$ 284
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	3	1
Outstanding Recorded Investment \| $	$ 428	$ 284

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=84173941&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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