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Loans Receivable and Allowance for Loan Losses (Number of TDR's and Recorded Investment) (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 USD ($) SecurityLoan | Mar. 31, 2016 USD ($) SecurityLoan
Residential [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | SecurityLoan | 0 | 1
Outstanding Recorded Investment | $ | $ 0 | $ 2,517
Mortgage Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | SecurityLoan | 0 | 1
Outstanding Recorded Investment | $ | $ 0 | $ 2,517
Commercial Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | SecurityLoan | 1 | 4
Outstanding Recorded Investment | $ | $ 284 | $ 6,809
Restructured Loans [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Number of Loans | SecurityLoan | 1 | 5
Outstanding Recorded Investment | $ | $ 284 | $ 9,326

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- Definition 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. + References 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 + Details
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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. + References 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 + Details
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