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Fair Value (Assets Measured At Fair Value On A Non-Recurring Basis) (Details) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans | $ 3,830 | $ 4,087
Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans | 3,063 | 2,650
Commercial [Member] | Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans | 115 | 130
Single-Family Mortgage Loans [Member] | Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans | 116 | 122
Multi-Family Mortgage Loans [Member] | Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans |  | 37
Real Estate, Commercial, Non-Owner Occupied [Member] | Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans | $ 2,832 | 2,161
Real Estate, Commercial, Owner Occupied [Member] | Financial instruments measured at fair value on a non-recurring basis [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Total impaired loans |  | $ 200

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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 No definition available. + Details
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- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5212-111524 + Details
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