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Securities (Amortized Cost and Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Schedule Of Available For Sale Securities [Line Items] |  |
Due in one year or less, Amortized Cost | $ 3,498 | $ 3,002
Due from one to five years, Amortized Cost | 7,477 | 8,497
Available-for-sale Securities Total, Amortized Cost | 11,231 | 11,845
Due in one year or less, Fair Value | 3,476 | 2,993
Due from one to five years, Fair Value | 7,328 | 8,424
Available-for-sale Securities Total, Fair Value | 11,064 | 11,773
Mortgage-Backed Securities - Residential [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
No single maturity, Amortized Cost | 184 | 236
No single maturity, Fair Value | 187 | 244
Available-for-sale Securities Total, Fair Value | 187 | 244
Collateralized Mortgage Obligations [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
No single maturity, Amortized Cost | 72 | 110
No single maturity, Fair Value | 73 | 112
Available-for-sale Securities Total, Fair Value | $ 73 | $ 112

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following latest fiscal year. Excludes interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 + Details
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