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Securities (Amortized Cost and Fair Value of Debt Securities by Contractual Maturity) (Details) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Due in one year or less, Amortized Cost | $ 3,495 | $ 3,495
Due from one to five years, Amortized Cost | 5,484 | 6,483
Available-for-sale Securities Total, Amortized Cost | 9,192 | 10,207
Due in one year or less, Fair Value | 3,474 | 3,472
Due from one to five years, Fair Value | 5,453 | 6,409
Available-for-sale Securities Total, Fair Value | 9,144 | 10,114
Mortgage-Backed Securities - Residential [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
No single maturity, Amortized Cost | 157 | 167
No single maturity, Fair Value | 161 | 170
Available-for-sale Securities Total, Fair Value | 161 | 170
Collateralized Mortgage Obligations [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
No single maturity, Amortized Cost | 56 | 62
No single maturity, Fair Value | 56 | 63
Available-for-sale Securities Total, Fair Value | $ 56 | $ 63

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